US20050197249A1 - Catalyst carrier and catalyst composition, processes for their preparation and their use - Google Patents
Catalyst carrier and catalyst composition, processes for their preparation and their use Download PDFInfo
- Publication number
- US20050197249A1 US20050197249A1 US11/069,425 US6942505A US2005197249A1 US 20050197249 A1 US20050197249 A1 US 20050197249A1 US 6942505 A US6942505 A US 6942505A US 2005197249 A1 US2005197249 A1 US 2005197249A1
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- US
- United States
- Prior art keywords
- catalyst
- carrier
- range
- acid
- present
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 239000003054 catalyst Substances 0.000 title claims abstract description 147
- 239000000203 mixture Substances 0.000 title claims description 66
- 238000000034 method Methods 0.000 title claims description 64
- 230000008569 process Effects 0.000 title claims description 46
- 238000002360 preparation method Methods 0.000 title claims description 10
- 239000011148 porous material Substances 0.000 claims abstract description 48
- 229910052751 metal Inorganic materials 0.000 claims abstract description 41
- 239000002184 metal Substances 0.000 claims abstract description 41
- 238000004517 catalytic hydrocracking Methods 0.000 claims abstract description 32
- 150000002739 metals Chemical class 0.000 claims abstract description 9
- 238000009826 distribution Methods 0.000 claims abstract description 6
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052753 mercury Inorganic materials 0.000 claims abstract description 5
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 61
- 239000000463 material Substances 0.000 claims description 59
- 239000010457 zeolite Substances 0.000 claims description 57
- 229910021536 Zeolite Inorganic materials 0.000 claims description 51
- 239000011959 amorphous silica alumina Substances 0.000 claims description 30
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 29
- 229910052710 silicon Inorganic materials 0.000 claims description 22
- 239000010703 silicon Substances 0.000 claims description 22
- 238000001125 extrusion Methods 0.000 claims description 19
- 238000005984 hydrogenation reaction Methods 0.000 claims description 17
- 238000005470 impregnation Methods 0.000 claims description 16
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 15
- 229910052759 nickel Inorganic materials 0.000 claims description 14
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 13
- 229910052721 tungsten Inorganic materials 0.000 claims description 13
- 239000010937 tungsten Substances 0.000 claims description 13
- 229910000323 aluminium silicate Inorganic materials 0.000 claims description 10
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 8
- 229910052796 boron Inorganic materials 0.000 claims description 8
- 238000001354 calcination Methods 0.000 claims description 8
- 150000002894 organic compounds Chemical class 0.000 claims description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 6
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 6
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 6
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 claims description 5
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 claims description 5
- 235000015165 citric acid Nutrition 0.000 claims description 5
- 238000000151 deposition Methods 0.000 claims description 5
- 239000012013 faujasite Substances 0.000 claims description 5
- 239000001630 malic acid Substances 0.000 claims description 5
- 235000011090 malic acid Nutrition 0.000 claims description 5
- 238000002459 porosimetry Methods 0.000 claims description 5
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims description 4
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 claims description 3
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 claims description 3
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 claims description 3
- 230000008021 deposition Effects 0.000 claims description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 3
- 239000011975 tartaric acid Substances 0.000 claims description 3
- 235000002906 tartaric acid Nutrition 0.000 claims description 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 2
- 229910017604 nitric acid Inorganic materials 0.000 claims description 2
- 150000007524 organic acids Chemical class 0.000 claims description 2
- 235000006408 oxalic acid Nutrition 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 34
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 27
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 26
- 230000000694 effects Effects 0.000 description 22
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 21
- 239000007788 liquid Substances 0.000 description 21
- 239000003921 oil Substances 0.000 description 21
- 239000000377 silicon dioxide Substances 0.000 description 17
- 239000007789 gas Substances 0.000 description 16
- 239000002210 silicon-based material Substances 0.000 description 16
- 238000009835 boiling Methods 0.000 description 13
- 229910052757 nitrogen Inorganic materials 0.000 description 13
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 12
- 239000005864 Sulphur Substances 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 11
- 239000011230 binding agent Substances 0.000 description 11
- -1 clays Chemical compound 0.000 description 11
- 239000001257 hydrogen Substances 0.000 description 11
- 229910052739 hydrogen Inorganic materials 0.000 description 11
- 238000010438 heat treatment Methods 0.000 description 10
- 239000000243 solution Substances 0.000 description 10
- 239000000969 carrier Substances 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 9
- 238000005336 cracking Methods 0.000 description 9
- 239000002245 particle Substances 0.000 description 9
- 238000012360 testing method Methods 0.000 description 9
- 238000001035 drying Methods 0.000 description 8
- 150000001875 compounds Chemical class 0.000 description 7
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 6
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 6
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 6
- 229930195733 hydrocarbon Natural products 0.000 description 6
- 150000002430 hydrocarbons Chemical class 0.000 description 6
- 229910052750 molybdenum Inorganic materials 0.000 description 6
- 239000011733 molybdenum Substances 0.000 description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 5
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 5
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 239000004215 Carbon black (E152) Substances 0.000 description 4
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 4
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 4
- KAESVJOAVNADME-UHFFFAOYSA-N Pyrrole Chemical compound C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 229960002645 boric acid Drugs 0.000 description 4
- 235000010338 boric acid Nutrition 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- 239000011574 phosphorus Substances 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 229920001296 polysiloxane Polymers 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000004327 boric acid Substances 0.000 description 3
- 239000012876 carrier material Substances 0.000 description 3
- 229910017052 cobalt Inorganic materials 0.000 description 3
- 239000010941 cobalt Substances 0.000 description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- 229910052763 palladium Inorganic materials 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 2
- 238000004438 BET method Methods 0.000 description 2
- MYGNKSRPANRXJO-UHFFFAOYSA-N C.C[Si](C)([Y])C([V])([W])[U] Chemical compound C.C[Si](C)([Y])C([V])([W])[U] MYGNKSRPANRXJO-UHFFFAOYSA-N 0.000 description 2
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 description 2
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000002441 X-ray diffraction Methods 0.000 description 2
- 239000002156 adsorbate Substances 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- ILRRQNADMUWWFW-UHFFFAOYSA-K aluminium phosphate Chemical compound O1[Al]2OP1(=O)O2 ILRRQNADMUWWFW-UHFFFAOYSA-K 0.000 description 2
- 229940001007 aluminium phosphate Drugs 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- WQAQPCDUOCURKW-UHFFFAOYSA-N butanethiol Chemical compound CCCCS WQAQPCDUOCURKW-UHFFFAOYSA-N 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000002178 crystalline material Substances 0.000 description 2
- 125000000753 cycloalkyl group Chemical group 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 229910052809 inorganic oxide Inorganic materials 0.000 description 2
- 238000005342 ion exchange Methods 0.000 description 2
- 239000003350 kerosene Substances 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- 235000011007 phosphoric acid Nutrition 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 150000003141 primary amines Chemical class 0.000 description 2
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 150000003335 secondary amines Chemical class 0.000 description 2
- 150000003377 silicon compounds Chemical class 0.000 description 2
- 150000004763 sulfides Chemical class 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- 229910019975 (NH4)2SiF6 Inorganic materials 0.000 description 1
- UTPYTEWRMXITIN-YDWXAUTNSA-N 1-methyl-3-[(e)-[(3e)-3-(methylcarbamothioylhydrazinylidene)butan-2-ylidene]amino]thiourea Chemical compound CNC(=S)N\N=C(/C)\C(\C)=N\NC(=S)NC UTPYTEWRMXITIN-YDWXAUTNSA-N 0.000 description 1
- 229910018125 Al-Si Inorganic materials 0.000 description 1
- 229910018520 Al—Si Inorganic materials 0.000 description 1
- 239000004254 Ammonium phosphate Substances 0.000 description 1
- 239000002028 Biomass Substances 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- MHZGKXUYDGKKIU-UHFFFAOYSA-N Decylamine Chemical compound CCCCCCCCCCN MHZGKXUYDGKKIU-UHFFFAOYSA-N 0.000 description 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical class OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 1
- 229910004883 Na2SiF6 Inorganic materials 0.000 description 1
- MXRIRQGCELJRSN-UHFFFAOYSA-N O.O.O.[Al] Chemical compound O.O.O.[Al] MXRIRQGCELJRSN-UHFFFAOYSA-N 0.000 description 1
- OTRAYOBSWCVTIN-UHFFFAOYSA-N OB(O)O.OB(O)O.OB(O)O.OB(O)O.OB(O)O.N.N.N.N.N.N.N.N.N.N.N.N.N.N.N Chemical compound OB(O)O.OB(O)O.OB(O)O.OB(O)O.OB(O)O.N.N.N.N.N.N.N.N.N.N.N.N.N.N.N OTRAYOBSWCVTIN-UHFFFAOYSA-N 0.000 description 1
- 229910003828 SiH3 Inorganic materials 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- ZRIUUUJAJJNDSS-UHFFFAOYSA-N ammonium phosphates Chemical class [NH4+].[NH4+].[NH4+].[O-]P([O-])([O-])=O ZRIUUUJAJJNDSS-UHFFFAOYSA-N 0.000 description 1
- 235000019289 ammonium phosphates Nutrition 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229940111121 antirheumatic drug quinolines Drugs 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 229910052810 boron oxide Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- HJMZMZRCABDKKV-UHFFFAOYSA-N carbonocyanidic acid Chemical compound OC(=O)C#N HJMZMZRCABDKKV-UHFFFAOYSA-N 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000002738 chelating agent Substances 0.000 description 1
- 239000003426 co-catalyst Substances 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 description 1
- WQOXQRCZOLPYPM-UHFFFAOYSA-N dimethyl disulfide Chemical compound CSSC WQOXQRCZOLPYPM-UHFFFAOYSA-N 0.000 description 1
- 239000004205 dimethyl polysiloxane Substances 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000000921 elemental analysis Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000011066 ex-situ storage Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052605 nesosilicate Inorganic materials 0.000 description 1
- KBJMLQFLOWQJNF-UHFFFAOYSA-N nickel(ii) nitrate Chemical compound [Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O KBJMLQFLOWQJNF-UHFFFAOYSA-N 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 150000003248 quinolines Chemical class 0.000 description 1
- 239000003079 shale oil Substances 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- CGFYHILWFSGVJS-UHFFFAOYSA-N silicic acid;trioxotungsten Chemical compound O[Si](O)(O)O.O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1.O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1.O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1.O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1 CGFYHILWFSGVJS-UHFFFAOYSA-N 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000011275 tar sand Substances 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J29/00—Catalysts comprising molecular sieves
- B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
- B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- B01J29/08—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the faujasite type, e.g. type X or Y
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J29/00—Catalysts comprising molecular sieves
- B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
- B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- B01J29/08—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the faujasite type, e.g. type X or Y
- B01J29/084—Y-type faujasite
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/85—Chromium, molybdenum or tungsten
- B01J23/888—Tungsten
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
-
- B01J35/60—
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
- B01J37/0018—Addition of a binding agent or of material, later completely removed among others as result of heat treatment, leaching or washing,(e.g. forming of pores; protective layer, desintegrating by heat)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0201—Impregnation
- B01J37/0203—Impregnation the impregnation liquid containing organic compounds
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G47/00—Cracking of hydrocarbon oils, in the presence of hydrogen or hydrogen- generating compounds, to obtain lower boiling fractions
- C10G47/02—Cracking of hydrocarbon oils, in the presence of hydrogen or hydrogen- generating compounds, to obtain lower boiling fractions characterised by the catalyst used
- C10G47/10—Cracking of hydrocarbon oils, in the presence of hydrogen or hydrogen- generating compounds, to obtain lower boiling fractions characterised by the catalyst used with catalysts deposited on a carrier
- C10G47/12—Inorganic carriers
- C10G47/16—Crystalline alumino-silicate carriers
- C10G47/20—Crystalline alumino-silicate carriers the catalyst containing other metals or compounds thereof
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- B01J35/633—
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- B01J35/635—
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- B01J35/647—
Definitions
- the present invention concerns a catalyst carrier suitable for a hydrocracking catalyst, a catalyst composition incorporating said carrier, the preparation of both carrier and catalyst composition and the use of the catalyst composition as a hydrocracking catalyst.
- hydrocracking in which heavy distillate hydrocarbons are converted under hydrogen pressure into products of lower molecular weight in the presence of a catalyst. Hydrocracking is used in the oil industry to prepare a wide range of materials, ranging from C3/C4 production to luboil manufacture.
- Hydrocracking may be operated as either a single or two-stage process.
- Two-stage hydrocracking involves a first stage, which is predominantly a hydrotreatment stage wherein impurities and unsaturated compounds are hydrogenated in the presence of a first catalyst having a high hydrogenation function, and a second-stage where most of the cracking occurs in the presence of a second catalyst having a strong cracking function.
- the treatment and cracking steps occur in one reactor and may be performed using a single catalyst.
- the catalysts employed in hydrocracking are generally made from a carrier material on which there are deposited catalytically active metals such as nickel, molybdenum, tungsten, palladium etc.
- Prior proposals to improve selectivity and activity have mainly concentrated on proposing new active materials, such as modified Y zeolites or silica-alumina materials, or new formulations comprising several active ingredients to provide a combined activity and selectivity improvement.
- Prior art proposals include US 2002/0160911; WO 00/12213, and WO 2004/047988.
- the present invention provides a shaped catalyst carrier which comprises at least one inorganic refractory oxide, which carrier has a monomodal pore size distribution wherein at least 50% of the total pore volume is present in pores having a diameter in the range of from 4 to 50 nm and wherein the pore volume present in said pores is at least 0.4 ml/g, all as measured by mercury intrusion porosimetry.
- the inorganic refractory oxide material may be any conventional oxide material suitable for hydroconversion processes. These are suitably selected from alumina, silica, silica-alumina or a mixture of two or more thereof. However it is also possible to use zirconia, clays, aluminium phosphate, magnesia, titania, silica-zirconia and silica-boria, though these are not often used in the art.
- the oxide material maybe amorphous or crystalline, or a mixture of two or more such materials. Crystalline aluminosilicates are suitably zeolitic materials; faujasite zeolites, such as zeolite Y materials are very suitable.
- Preferred refractory oxides are those having a hydrocracking capability, and may be selected from amorphous silica-alumina and ultrastable zeolite Y oxidic materials.
- amorphous indicates a lack of crystal structure, as defined by X-ray diffraction, in the carrier material, although some short range ordering may be present.
- Amorphous silica-alumina suitable for use in preparing the catalyst carrier is available commercially. Conventional homogeneous amorphous silica alumina materials can be used, as can the heterogeneous dispersions of finely divided silica alumina in an alumina matrix, as described in U.S. Pat. Nos. 4,097,365 and 4,419,271. Alternatively, the silica-alumina may be prepared by a co-gelation process or a grafting process, as are well known in the art.
- the amorphous silica-alumina preferably contains silica in an amount in the range of from 25 to 95% by weight as calculated on the carrier alone (i.e. based on total carrier). More preferably the amount of silica in the carrier is greater than 35% wt, and most preferably at least 40% wt.
- a very suitable amorphous silica-alumina product for use in preparing the catalyst carrier of the invention comprises 45% by weight silica and 55% by weight alumina and is commercially available (ex. Criterion Catalysts and Technologies, USA).
- Preferred zeolitic Y materials are an ultrastable zeolite Y (USY) or a very ultrastable zeolite Y (VUSY) of unit cell size (a o ) less than 2.440 nm (24.40 ⁇ ngstroms), in particular less than 2.435 nm (24.35 ⁇ ngstroms) and a silica to alumina ratio of from 4 or more, for example from 4 to 100.
- Suitable zeolite Y materials are known, for example, from European Patent Specifications Nos. 247 678 and 247 679, and WO 2004/047988.
- USY and VUSY Y zeolites are the preferred form of cracking component used in the present invention
- other Y zeolite forms are also suitable for use, for example the known ultrahydrophobic Y zeolites.
- Preferred VUSY zeolite of EP-A-247 678 or EP-A-247 679 is characterised by a unit cell size below 2.445 nm (24.45 ⁇ ngstroms) or 2.435 nm (24.35 ⁇ ngstroms), a water adsorption capacity (at 25° C. and a p/p o value of 0.2) of at least 8% w of the zeolite and a pore volume of at least 0.25 ml/g wherein between 10% and 60% of the total pore volume is made up of pores having a diameter of at least 8 nm.
- zeolite Y materials described in WO 2004/047988 and US 2004/0152587 which are incorporated herein by reference.
- Such materials can be described as a zeolite of the faujasite structure having a unit cell size in the range of from 24.10 to 24.40 ⁇ , a bulk silica to alumina ratio (SAR) above 12, and a surface area of at least 850 m 2 /g as measured by the BET method and ATSM D 4365-95 with nitrogen adsorption at a p/po value of 0.03.
- Said materials are prepared by a process which comprises
- Especially preferred high surface area materials have one or more of the following features:
- Mercury intrusion porosimetry is a standard technique to determine particularly mesoporosity and macroporosity of a refractory oxide or other solid porous materials since it can determine pore volume distributions of 4 nm and above.
- Mesopores herein are pores having a diameter in the range of from 4 to 50 nm; macropores herein are pores having a diameter above 50 nm. It is the aim of the present invention to maximise the mesoporosity and minimise the macroporosity of the carrier, and at least to increase the number of mesopores without increasing the number of macropores in the carriers.
- the shaped carrier of the invention has a monomodal distribution.
- a conventional pore size distribution (PSD) graph which shows dD plotted against dV/dD there is a single peak, suitably a single sharp peak, which in the case of the carrier of the invention lies in the mesopore range: pores of diameter in the range of from 4 to 50 nm.
- D indicates pore diameter
- V indicates pore volume.
- a rounded or bell shaped curve could also exist in the macropore range of such a PSD graph; this is not a peak within the meaning of the present text.
- the mesopore pore volume is at least 0.45 ml/g, preferably at least 0.5 ml/g.
- the mesopore pore volume is at most 0.8 m/g, more preferably at most 0.7 ml/g.
- the nature of the inorganic refractory oxide can influence the most preferred mesopore pore volumes for the shaped carrier of the invention.
- the mesopore pore volume is most suitably in the range of from 0.5 to 0.8 ml/g, preferably 0.6 to 0.75 ml/g, and more preferably 0.65 to 0.70 ml/g.
- the mesopore pore volume is most suitably in the range of from 0.4 to 0.6 ml/g, preferably 0.45 to 0.6 ml/g, more preferably 0.5 to 0.6 ml/g.
- the proportion of the pore volume that is in the mesopores is at least 60% and at most 90%.
- the nature of the refractory oxide material can influence the most preferred proportions.
- the proportion of the pore volume in the mesopores is in the range of from 75 to 90%, preferably 80 to 90%, and more preferably 85 to 90%.
- the refractory oxide material comprises or contains a crystalline material, as above, then most suitably the proportion of the pore volume in the mesopores is in the range of from 50 to 75%, preferably from 60 to 75%.
- CBD compacted bulk density
- Reduction of the CBD can generally be desirable since it means that a reduced amount of expensive catalyst is required.
- the CBD of the final catalyst is lowered allowing a more economical catalyst refill for the refiner, but also surprisingly the activity of the catalyst is increased alongside an increased middle distillate selectivity and aromatics hydrogenation. This is particularly seen with the preferred zeolitic materials for use in the catalysts of the present invention: the high surface area zeolite Y materials described herein.
- a further advantage of the catalyst carrier of the invention is that this increased activity of the final catalyst is maintained over time, and thus the stability of the catalyst is greatly enhanced. This is particularly seen with catalyst carriers made wholly or predominantly, for example from 95 to 100 wt %, of amorphous refractory oxide materials.
- a yet further advantage of the shaped catalyst carrier of the invention is that the carrier when in extrudate form exhibits an increased strength and attrition resistance, and thus enables a longer catalyst lifetime in use.
- the CBD of the carrier of the invention is suitably in the range of from 0.35 to 0.50 g/ml, preferably 0.35 to 0.45 g/ml, more preferably 0.38 to 0.43 g/ml.
- the refractory oxide material(s) may be usefully mixed with an amorphous binder component.
- the amorphous binder component may be any other refractory inorganic oxide or mixture of oxides conventional for such compositions. Generally this is an oxidic material not having a cracking capability and may be selected from, for example, alumina, silica, or a mixture thereof, alumina being preferred, but may also be a silica-alumina material, containing in the range of from 5 to 95% w silica, most suitably amorphous silica alumina materials hereinbefore mentioned.
- the amount of binder is generally in the range of from 0 to 70 wt % and is suitably less than 50 wt %, and may be less than 30 wt %.
- the amount of zeolite in the catalyst support when binder is also present may be up to 90% by weight, but is preferably in the range of from 2, more preferably 10, especially 20, to 80% by weight, based on the total catalyst support, with the balance being binder.
- the catalyst carrier and thus the catalyst composition, of the present invention, also to include a second cracking component.
- This is preferably a second zeolite.
- a second zeolite is selected from zeolite beta, zeolite ZSM-5, or a zeolite Y of different unit cell size. Where a second zeolite Y is used, preferably it has a unit cell size greater than 24.40 ⁇ .
- a second cracking component may be present in an amount up to 20 parts by weight, based on total zeolite plus binder, but preferably is present in an amount in the range of from 0.5 to 10 parts by weight.
- amorphous silica alumina may act both as a second cracking component and as a binder.
- a cracking component it is most usefully employed in high operating temperature processes; as a binder it has been found useful in protecting a zeolite from loss of crystallinity, and therefore from deactivation, in use in any process that water and/or fluoride is present or generated.
- the shaped carrier may be prepared by any conventional way of compressing the refractory oxides into a shaped form. It is a routine measure to check the mesporosity of the resulting materials once prepared. Compression may be via pelletization, extrusion or other compression means common in the art. We have found that the mesoporous shaped carrier of the present invention may be prepared more consistently if the oxides are prepared from a mix having a selected LOI (loss on ignition). Additional consistency of material is obtained if the mix has a selected pH range.
- LOI loss on ignition
- the present invention provides a process for the preparation of the shaped catalyst carrier of the invention, which comprises shaping a mix comprising said at least one refractory oxide wherein the mix has an LOI in the range of from 55 to 65%.
- loss on ignition (LOI) for a material is the relative amount of lost mass upon heating the material, i.e. the water content. Unless otherwise specified herein, this is determined herein by heating the material to 540° C. under the following procedure: a sample is mixed well to prevent any inhomogeneity. The weighed sample is transferred into a weighed and precalcined crucible. The crucible is place to a preheated oven at 540° C. for a minimum time of 15 minutes, but typically for 1 hour.
- LOI % ( w ⁇ w calc )/ w* 100% where w is the original weight of the sample, w calc is the weight of the calcined sample after heating in the oven, both corrected with the weight of the crucible.
- the mix may be formed of the refractory oxide materials and additional components, eg binder, with an aqueous liquid, most suitably water.
- additional components eg binder
- aqueous liquid most suitably water.
- the oxidic and binder materials are usually used in powder or crystal form. Shaping is most suitably and preferably by extrusion.
- extrusion mixes have an LOI determined by the need to combine particulate materials into a form which can be forced as a combined homogeneous entity through an extrusion die wherein the shear forces and generated heat cause fusion of the component materials into a shaped product which will maintain its integrity over time and in use, i.e. maintain mechanical strength.
- An extrusion mix is conventionally formed as a dough-like material through kneading or mulling with the addition of water. The water will penetrate the pores of the materials as well as the interstices between materials.
- the LOI of an extrusion mix is therefore different depending on the nature (porosity) of the materials and size of the particles, and is often in the range of from 50 to 70%.
- the process of the present invention generally requires a higher water content for the mix than would normally or conventionally be applied for the materials utilised. Thus if a mix would normally require a 54% LOI, then a higher LOI, eg 58%, will increase the mesoporosity of the carrier.
- the LOI is most suitably at least 56%, very suitably at least 57%, preferably at least 58%, more preferably at least 59%, especially at least or just in excess of 60%. Since LOI can be assessed to a high accuracy, ‘in excess’ includes for example 60.01%. Most preferably the LOI is in the range of from 60, or just in excess of 60, to 75%, particularly for carriers in which the refractory oxide is wholly or predominantly amorphous silica alumina.
- the extrusion mix has an acidic pH, i.e. a pH of 7.0 or less.
- the pH is in the range of from 3.5, suitably 4.0, to 7.0; more preferably 4.0 to 5.0, especially 4.2 to 4.7.
- a suitable combination of LOI and pH conditions are an LOI of from 58, very suitably 60 or just in excess of 60, to 75%, and a pH in the range of from 3.5, preferably 4.0, to 5.0.
- Any convenient mono-basic acid may be used to adjust the pH for the acidic solution; examples are nitric acid and acetic acid.
- conventionally extrusion aids may be utilized; usual extrusion aids include Superfloc, obtainable from Nalco.
- Extrusion may be effected using any conventional, commercially available extruder.
- a screw-type extruding machine may be used to force the mixture through orifices in a die plate to yield carrier extrudates of the required form, e.g. cylindrical or trilobed.
- carrier extrudates e.g. cylindrical or trilobed.
- the strands formed on extrusion may then be cut to the appropriate length.
- the form of the carrier extrudates can also affect the activity of the final catalyst as is known in the art.
- the form is very suitably a conventional TRILOBE, twisted trilobe, or quadrilobe form (Trilobe is a trade mark).
- the form may usefully be a shaped trilobe as described in International patent publication WO 03/013725.
- an elongate, shaped particle comprising three protrusions each extending from and attached to a central position aligned along the central longitudinal axis of the particle, the cross-section of the particle occupying the area encompassed by the outer edges of six outer circles around a central circle minus the area occupied by three alternating outer circles, wherein each of the six outer circles is touching two neighbouring outer circles and wherein three alternating outer circles are equidistant to the central circle, have the same diameter, and may be attached to the central circle.
- the three alternating outer circles preferably have a diameter in the range of from 0.74 to 1.3 times the diameter of the central circle, and more preferably have the same diameter as the central circle.
- Such particles most usefully have a length to diameter (L/D) ratio of at least 2, preferably in the range of from 2 to 5, and a length in the range of from 1 to 25 mm.
- the carrier extrudates may be dried, e.g. at a temperature of from 100 to 300° C. for a period of from 30 minutes to 3 hours, prior to calcination.
- Calcination is conveniently carried out in air at a temperature in the range of from 300 to 850° C., preferably from 400 to 825° C., for a period of from 30 minutes to 4 hours.
- any of the general carrier preparation techniques known in the art may be utilised, with the LOI and pH conditions adapted as above.
- a preferred method for the preparation of such a carrier comprises mulling a mixture of the amorphous silica-alumina and a suitable liquid, extruding the mixture and drying and heating the resulting extrudates, at a temperature in the range of from 400 to 850° C., as for example described in WO-9410263 but is preferably from 650° C. to 850° C., more preferably 700° C. to 825° C., especially 750° C. to 810° C.
- the extrudates may have any suitable form known in the art, for example cylindrical, hollow cylindrical, multilobed or twisted multilobed. A preferred shape for the catalyst particles is multilobed, for example trilobed. Typically, the extrudates have a nominal diameter of from 0.5 to 5 mm, preferably from 1 to 3 mm.
- the extrudates are dried. Drying may be performed at an elevated temperature, preferably up to 300° C., more preferably up to 200° C. The period for drying is typically up to 5 hours, preferably in the range of from 30 minutes to 3 hours.
- the extrudates are then calcined after drying at very high temperature, as above, typically for a period of up to 5 hours, preferably in the range of from 30 minutes to 4 hours.
- the present invention further provides a catalyst composition which comprises a carrier of the present invention, and at least one hydrogenation metal component selected from Group VIb and Group VIII.
- At least one hydrogenation metal component is incorporated into the catalyst of the invention. This addition may occur at any stage during catalyst preparation, using techniques conventional in the art.
- the hydrogenation component can be added to the oxide, or a mixture of oxide and binder, through co-mulling.
- the hydrogenation component is added to the formed extrudates either before or after optional calcining, using conventional impregnation techniques, eg as one or more aqueous impregnating solutions of Group VIB and/or Group VIII metal salts. If the impregnation occurs after calcination of the formed extrudates, then a further drying and optional calcination procedure is usefully employed.
- the hydrogenation component is selected from nickel, cobalt, molybdenum, tungsten, platinum and palladium.
- hydrogenation components examples include Group VIB (e.g. molybdenum and tungsten) and Group VIII metals (e.g. cobalt, nickel, iridium, platinum and palladium), their oxides and sulphides.
- the catalyst composition will preferably contain at least two hydrogenation components, e.g. a molybdenum and/or tungsten component in combination with a cobalt and/or nickel component.
- Particularly preferred combinations are nickel/tungsten and nickel/molybdenum. Very advantageous results are obtained when these metal combinations are used in the sulphide form.
- the present catalyst composition may contain up to 50 parts by weight of hydrogenation component, calculated as metal per 100 parts by weight (dry weight) of total catalyst composition.
- the catalyst composition may contain from 2 to 40, more preferably from 5 to 30 and especially from 10 to 20, parts by weight of Group VIB metal(s) and/or from 0.05 to 10, more preferably from 0.5 to 8 and advantageously from 1 to 6, parts by weight of Group VIII metal(s), calculated as metal per 100 parts by weight (dry weight) of total catalyst composition.
- the amount of Group VIII metal and Group VIB metal in the catalyst may vary depending on the metal type and the intended purpose of the catalyst, however, the amount of Group VIII metal will preferably be in the range of from 0.5 to 10% wt, whilst the amount of Group VIB metal will preferably be in the range of from 3 to 30% wt, measured as the metal, based on total weight of catalyst.
- a preferred catalyst according to the present invention comprises nickel in an amount in the range of from 1 to 6% wt, more preferably 3 to 5% wt; and molybdenum in an amount in the range of from 6 to 18% wt, preferably 10 to 15% wt, or tungsten in an amount in the range of from 10 to 25% wt, preferably 15 to 22% wt.
- the Group VIII and Group VIB metals may be deposited on the carrier using any of the suitable methods known in the art, for example by ion exchange, competitive ion exchange or impregnation.
- the metals may be deposited by impregnating the carrier with an impregnation solution comprising appropriate metal-containing compounds, and optionally a chelating agent such as ethylene glycols, ethylene diamine, tartaric acid, malonic acid, citric acid, malic acid, nitriloacetic acid or ethylenediaminetetraacetic acid(EDTA).
- the catalyst is preferably dried at a temperature of up to 200 ° C., then heated or calcined at a temperature in the range of from 200 to 600° C.
- the mesoporous carrier of the present invention permits a higher metals incorporation with a greater metal accessibility as well as a lower CBD for the resulting catalyst. This in turn permits a higher hydrogenation activity such that not only is an increased aromatics hydrogenation obtained but also desulphurisation can be given. This means that to achieve current low sulphur requirements for fuels, it would not be necessary to apply a further treatment with a desulphurisation catalyst.
- the catalyst composition of the invention has a CBD of at most 0.70, preferably at most 0.68, ml/g.
- the CBD is generally at least 0.55 ml/g; suitably at least 0.6 ml/g, and preferably at least 0.62 ml/g.
- a catalyst composition based on an amorphous silica alumina carrier, especially one essentially free of aluminosilicate zeolite suitably has a CBD in the range of from 0.60 to 0.65 ml/g.
- the Group VIb metal is tungsten present in an amount in the range of from 20 to 27 wt %, most preferably 21 to 27 wt %, especially 21 wt %, calculated as the trioxide and based on total weight of catalyst, and that the Group VIII metal is nickel present in an amount in the range of from 4 to 6 wt %, preferably 5 to 6 wt %, especially 5 wt %, calculated as the oxide and based on total weight of catalyst.
- the present invention therefore provides a process for the preparation of a catalyst composition of the invention, which comprises drying or calcining a carrier of the present invention, if necessary or desired, and depositing at least one hydrogenation metal selected from Group VIb and Group VIII in the appropriate amount, wherein the deposition is effected by an impregnation solution containing an organic compound having at least two moieties selected from carboxyl, carbonyl, and hydroxyl groups.
- the composition is suitably dried at elevated temperature, or by aging at room temperature until drying is effected. Most suitably drying occurs at a temperature in the range of from 100 to 200° C., eg 120° C. Calcination is preferably carried out, eg at a temperature in the range of from 200 to 500° C., but is optional.
- the process preferably utilises an organic compound which is an organic acid selected from citric acid, tartaric acid, oxalic acid, malonic acid and malic acid.
- the inorganic refractory oxide material of the carrier is an amorphous material, and particularly an amorphous alumina or the more preferred amorphous silica alumina, and is essentially free of zeolitic material
- the catalyst composition may further usefully contain one or more promoter elements.
- Promoters to enhance the performance of catalysts based on amorphous carrier materials are known and described in the art. Thus silicon promotion is disclosed for amorphous catalyst compositions for a variety of uses in WO 95/11753, U.S. Pat. No. 5,507,940, EP-A-533,451, and EP-A-586,196. Other promoters are also known particularly for use in amorphous-based hydrocracking catalysts, for example in US-A-2002/0160911 and U.S. Pat. No. 6,251,261 the use of boron and phosphorus is disclosed in addition to silicon as a promoter.
- the catalyst composition of the invention when utilising a shaped carrier of the invention consisting essentially of an amorphous inorganic refractory oxide material may contain in the range of from 0 to 20 wt %, preferably 0.1 to 15 wt %, and more preferably 0.1 to 10 wt % of a promoter element selected from silicon, boron and phosphorus, preferably silicon and boron, especially silicon.
- a promoter element selected from silicon, boron and phosphorus, preferably silicon and boron, especially silicon.
- the amount of promoter silicon is additional to the amount of silicon present in the silica oxide material.
- the oxide is silica-alumina and the promoter is selected from silicon and boron; most preferably the promoter is silicon.
- silicon sources can be used.
- ethyl orthosilicate Si(OEt) 4 siloxanes, polysiloxanes, silicones, silicone emulsions, halide silicates such as ammonium fluorosilicate (NH 4 ) 2 SiF 6 or sodium fluorosilicate Na 2 SiF 6 .
- the silicomolybdic acid and its salts, and the silicotungstic acid and its salts can also be used advantageously.
- the silicon may also be added by, for example, impregnation of ethyl silicate in solution in a water/alcohol mixture.
- the silicon can be added by, for example, impregnation of a silicon compound of silicone type or silicic acid that is suspended in water.
- the boron source may be boric acid, preferably orthoboric acid H 3 BO 3 , ammonium biborate or ammonium pentaborate, boron oxide, or boric esters.
- Boron can be introduced, for example, in the form of a mixture of boric acid, oxidized water and a basic organic compound that contains nitrogen, such as ammonia, primary and secondary amines, cyclic amines, the compounds of the pyridine family and quinolines, and the compounds of the pyrrole family. Boron may be introduced by, for example, a solution of boric acid in a water/alcohol mixture.
- Suitable phosphorus sources are orthophosphoric acid H 3 PO4, and its salts and esters, such as the ammonium phosphates.
- the phosphorus can, for example, be introduced in the form of a mixture of phosphoric acid and a basic organic compound that contains nitrogen, such as ammonia, primary and secondary amines, cyclic amines, compounds of the pyridine family and quinoliines and compounds of the pyrrole family.
- the amount of aluminosilicate zeolite in the carrier is less than 1% wt, based on total carrier, more preferably less than 0.5% wt and even more preferably less than 0.1% wt. Most preferably, the carrier contains no aluminosilicate zeolite.
- a promoted hydrocracking catalyst employed in the process of the present invention preferably comprises at least 0.5% wt of silicon based on total weight of catalyst, which silicon has been incorporated in the catalyst by treating the amorphous silica-alumina carrier with a liquid silicon-containing compound.
- the amount of silicon incorporated by treatment with the liquid silicon-containing compound is additional to the silicon in the amorphous silica-alumina carrier.
- the additional silicon may be incorporated by treating the carrier with a liquid-silicon containing compound either before or after the metal components have been deposited on the carrier, however, in a preferred embodiment of the present invention the carrier is treated with the liquid silicon-containing compound after the metal components have been deposited on the carrier.
- the liquid silicon-containing compound may be any silicon-containing compound that may act as a source of silicon and which may be applied to the carrier in liquid form.
- the liquid silicon-containing compound is of general formula: wherein U, V, W, X, Y, and Z can each individually and independently represent —R, —OR, —Cl, —Br, —SiH 3 , —COOR, —SiH n Cl m , R being either hydrogen, or an alkyl, cycloalkyl-, aromatic, alkyl aromatic, alkylcycloalkyl radical having from 1 to 30 carbon atoms, “n” and “m” being whole numbers in the range of from 1 to 3 and “a” being a whole number in the range of from 0 to 1000.
- a is no more than 100, more preferably no more than 80, as liquids wherein “a” is greater than 100 have a high viscosity and are thus inconvenient to apply to the carrier.
- the liquid silicon-containing compound is of general formula wherein U, V, W, X, Y, and Z can each individually and independently represent —R or —OR, R being either hydrogen, or an alkyl, cycloalkyl, alkylcycloalkyl radical having from 1 to 30 carbon atoms and “a” being a whole number in the range of from 0 to 60.
- liquid silicon-containing compounds examples include alkyl orthosilicates such as ethyl orthosilicate (Si(OEt) 4 ), methyltriethyl siloxane (Si(OEt) 3 Me), and silicone oils such as polydimethylsiloxane.
- alkyl orthosilicates such as ethyl orthosilicate (Si(OEt) 4 ), methyltriethyl siloxane (Si(OEt) 3 Me)
- silicone oils such as polydimethylsiloxane.
- a convenient means of treating the carrier with the liquid silicon-containing compound comprises adding the liquid to the carrier and subsequently heating the silicon-liquid treated carrier at elevated temperature, typically in the range of from 100 to 400° C.
- the liquid silicon-containing compound may optionally be dissolved in a suitable organic solvent such as a lower alkane, however, in some circumstances, for example when preparing a large quantity of catalyst, the liquid silicon-containing compound may be applied neat.
- the amount of liquid silicon-containing compound applied to the carrier may vary depending on the particular silicon-containing compound employed, however, it is preferably such that the amount of silicon deposited on the carrier, as determined by elemental analysis, is at least 1% wt, based on total catalyst. More preferably the amount of silicon is in the range of from 1 to 10% wt, even more preferably 1 to 5% wt, based on total catalyst.
- the promoted hydrocracking catalyst is prepared by a process which comprises impregnating an amorphous silica-alumina carrier with a Group VIII metal and a Group VIB metal, heating the impregnated carrier at a temperature in the range of from 150 to 500° C., treating the impregnated carrier with a liquid silicon-containing compound, and then heating the silicon-liquid treated catalyst at a temperature in the range of from 100 to 300° C.
- the activity of the catalyst may be optimised by varying the temperature at which the catalyst is heated.
- the heating temperature following metal impregnation is in the range of from 150 to 250° C.
- the heating temperature following silicon-compound treatment is in the range of from 150 to 250° C.
- all hydrocracking catalysts of the invention are preferably sulphided prior to use.
- the catalyst may conveniently be sulphided by any of the techniques known in the art, such a ex-situ or in-situ sulphidation.
- sulphidation may be performed by contacting the catalyst with a sulphur-containing gas, such as a mixture of hydrogen and hydrogen sulphide, a mixture of hydrogen and carbon disulphide or a mixture of hydrogen and a mercaptan, such as butylmercaptan.
- sulphidation may be carried out by contacting the catalyst with hydrogen and a sulphur-containing hydrocarbon oil, such as sulphur-containing kerosene or gas oil.
- a sulphur-containing hydrocarbon oil such as sulphur-containing kerosene or gas oil.
- the sulphur may also be introduced into the hydrocarbon oil by the addition of a suitable sulphur-containing compound, for example dimethyldisulphide or tert-nonylpolysulphide.
- the present invention also provides a process for converting a hydrocarbonaceous feedstock into lower boiling materials which comprises contacting the feedstock with hydrogen at elevated temperature and elevated pressure in the presence of a catalyst composition according to the present invention. Such a process is commonly termed hydrocracking.
- the catalyst formed can also exhibit good hydrodesulpurisation of the remaining sulphur in a conventional hydrocracking feedstock. Furthermore the presence of nitrogen contaminants in the feedstock does not hinder or deactivate the catalysts of the invention.
- the hydroconversion processes of the present invention can be carried out in any reaction vessel usual in the art.
- the process may be performed in a fixed bed or moving bed reactor.
- the catalyst of the invention may be used in conjunction with any suitable co-catalyst or other materials usual in the art.
- the catalyst of the invention may be used in stacked bed formation with one or more other catalysts useful in hydroprocessing, for example with a catalyst containing a different zeolite, with a catalyst containing a faujasite zeolite of different unit cell size, with a catalyst utilizing an amorphous carrier, and so on.
- hydrocarbonaceous feedstocks useful in the present process can vary within a wide boiling range. They include atmospheric gas oils; coker gas oils; vacuum gas oils; deasphalted oils; fractions, eg gas oils and waxes, obtained from a Fischer-Tropsch synthesis process, long and short residues, catalytically cracked cycle oils, thermally or catalytically cracked gas oils, and syncrudes, optionally originating from tar sand, shale oils, residue upgrading processes and biomass. Combinations of various hydrocarbon oils may also be employed.
- the feedstock will generally comprise hydrocarbons having an initial boiling point of at least 330° C.
- the boiling range will generally be from about 330 to 650° C., with preference being given to feedstocks having a boiling range of from about 340 to 620° C.
- the feedstock may have a nitrogen content of up to 5000 ppmw (parts per million by weight) and a sulphur content of up to 6% w. Typically, nitrogen contents are in the range from 250 to 2000 ppmw and sulphur contents are in the range from 0.2 to 5% w. It is possible and may sometimes be desirable to subject part or all of the feedstock to a pre-treatment, for example, hydrodenitrogenation, hydrodesulphurisation (HDS) or hydrodemetallisation, methods for which are known in the art.
- HDS hydrodesulphurisation
- the process of the invention may conveniently be carried out at a reaction temperature in the range of from 250 to 500° C., preferably in the range of from 300 to 450° C.
- the present process is preferably carried out at a total pressure (at the reactor inlet) in the range of from 3 ⁇ 10 6 to 3 ⁇ 10 7 Pa, more preferably from 4 ⁇ 10 6 to 2.5 ⁇ 10 7 Pa and even more preferably from 8 ⁇ 10 6 to 2 ⁇ 10 7 Pa.
- a hydrocracking process is carried out at a low pressure of, for example 4 ⁇ 10 6 to 1.2 ⁇ 10 7 Pa, this may be termed ‘mild hydrocracking’.
- the hydrogen partial pressure (at the reactor inlet) is preferably in the range from 3 ⁇ 10 6 to 2.9 ⁇ 10 7 Pa, more preferably from 4 ⁇ 10 6 to 2.4 ⁇ 10 7 Pa and still more preferably from 8 ⁇ 10 6 to 1.9 ⁇ 10 7 Pa.
- a space velocity in the range from 0.1 to 10 kg feedstock per litre catalyst per hour (kg.1 ⁇ 1 .h ⁇ 1 ) is conveniently used.
- the space velocity is in the range from 0.1 to 10, particularly from 0.2 to 8, and preferably from 0.5 to 5 kg.1 ⁇ 1 .h ⁇ 1 .
- the ratio of hydrogen gas to feedstock (total gas rate or the gas/feed ratio) used in the present process will generally be in the range from 100 to 5000 N1/kg, but is preferably in the range from 200 to 3000 N1/kg, more preferably 250 to 2000 N1/Kg.
- the hydrocracking process of the present invention may be used to particularly advantageous effect in single-stage hydrocracking, wherein it gives a good efficiency of conversion even on exposure to feedstocks comprising nitrogen and sulphur-containing contaminants.
- Middle distillate fractions are liquid fractions having a boiling point in the range of from 150 to 370° C., and include products such as kerosene (150 to 250° C.) and gas oil (250 to 370° C.).
- middle distillate products There is a growing demand for middle distillate products, and as such there is always a need for hydrocracking processes that show a strong selectivity for middle distillates with minimum formation of gaseous (C 1 -C 4 ) material, i.e. processes whose products contain low amounts of gaseous material and high amounts of middle distillate.
- the hydrocracking process of the present invention has proven to be extremely selective at converting heavy distillate feedstocks, such as heavy gas oils or deasphalted oils to middle distillate fractions.
- a preferred embodiment of the present invention provides for the single-stage conversion of a heavy gas oil or a deasphalted oil to a middle distillate fraction.
- catalyst carriers and catalysts were prepared using different amounts of zeolite and inorganic refractory oxide in each catalyst formulation as noted below.
- a catalyst carrier was prepared by mixing a zeolite with refractory inorganic oxide in the proportions required. Water and acid were added in order to achieve the specified LOI and pH and the mixture mulled in a mix-muller until an extrudable mix was obtained. The mixture was then extruded, together with an extrusion aid (Superfloc), into extrudates having, in cross-section, a tri-lobe shape. The extrudates were dried statically for 2 hours at 120° C. and then calcined for 2 hours at 535° C. The catalyst particles so-obtained were cut to be of regular length with a diameter of either 1.5 mm or 2.5 mm, measured from the top to the bottom of a nominal triangle formed by the tri-lobe.
- Superfloc extrusion aid
- the metal hydrogenation components of nickel and tungsten were then incorporated by impregnation of the pellets with an homogenized aqueous solution of nickel nitrate and ammonium metatungstate. Citric acid or malic acid was incorporated into certain of the impregnation solutions as noted.
- the impregnated extrudates were dried at ambient conditions in hot circulating air for 1 hour and then at 120° C. for 2 hours and finally calcined at 500° C. for 2 hours.
- the hydrocracking performance of the catalysts was assessed in a number of second stage series-flow simulation tests.
- the testing was carried out in once-through microflow equipment which had been loaded with a top catalyst bed comprising 1 ml C-424 catalyst (commercially available from Criterion Catalysts & Technologies USA) diluted with 1 ml of 0.1 mm SiC particles and a bottom catalyst bed comprising 10 ml of the test catalyst diluted with 10 ml of 0.1 mm SiC particles. Both catalyst beds were presulphided prior to testing.
- Each test involved the sequential contact of a hydrocarbonaceous feedstock (a heavy gas oil) with the top catalyst bed and then the bottom catalyst bed in a once-through operation under the following process conditions: a space velocity of 1.5 kg heavy gas oil per litre catalyst per hour (kg.1 ⁇ 1 .h ⁇ 1 ), a hydrogen gas/heavy gas oil ratio of 1440 N1/kg, a hydrogen sulphide partial pressure of 5.6 ⁇ 10 5 Pa (5.6 bar) and a total pressure of 14 ⁇ 10 6 Pa (140 bar).
- a standard heavy gas oil test feed was used having the following properties: Carbon content 86.64% w Hydrogen content 13.36% w Sulphur (S) content 122 ppmw Nitrogen (N) content 12 ppmw Added n-Decylamine 12.3 g/kg (equivalent to 1100 ppmw N) Total nitrogen (N) content 1112 ppmw Density (15/4° C.) 0.8805 g/ml Density (70/4° C.) 0.8463 g/ml Molar weight 433 g Initial boiling point 355° C. 50% w boiling point 425° C. Final boiling point 606° C. Fraction boiling below 370° C. 2.57% wt Fraction boiling above 540° C. 10.0% wt
- Hydrocracking performance was assessed at conversion levels between 40 and 90% wt net conversion of feed components boiling above 370° C. To compare activity, the obtained results, expressed as the temperature required to obtain 65% wt net conversion of feed components boiling above 370° C., are shown in the Tables below.
- Hydrodesulphurisation (HDS) activity was assessed using the same test feed and under the same conditions as above but without using hydrogen sulphide addition.
- LOI is determined by the same method described herein but with heating to 485° C.
- USY zeolite Y In carriers C to K the same high surface area USY zeolite Y was used and is a very ultrastable zeolite Y having a unit cell size of 24.32 ⁇ , a molar silica to alumina ratio of 29, a BET surface area of 893 m 2 /g, and a micropore volume of 0.298 ml/g, prepared as described in WO 2004/047988.
- unit cell size is determined by X-ray diffraction using ASTM D 3942-80; SAR is bulk or overall SAR and is determined by chemical analysis; BET surface area is determined by the BET method of Brunauer, Emmett and Teller, J.Am. Chm.
- the carriers used have the following compositions. All percentages are percentages by weight, basis total carrier. Unless otherwise stated, the amorphous silica alumina is Al—Si:55-45% w and the alumina is wide pore alumina, both available from Criterion Catalysts and Technologies, USA (CC&T).
- the catalysts used have the following metal loadings given as % w basis total catalyst weight.
- Hg total pore LOI extrusion Acidity volume Hg meso pore mix extrusion mix CBD (PV) volume % PV in Carrier Shape % w pH g/ml ml/g ml/g mesopores A 1.6 mm 0.52 0.66 B 1.6 mm 0.44 0.917 C 2.5 mm 54.80 3.4 0.52 0.516 0.368 71.31 D 2.5 mm 59.60 3.6 0.40 0.740 0.520 70.27 E 2.5 mm 56.80 3.7 0.43 0.696 0.490 70.40 F 2.5 mm 56.80 3.7 0.38 0.696 0.487 69.97 G 2.5 mm 60.40 5.8 0.42 0.864 0.459 53.12 H 2.5 mm 61.20 7.0 0.39 0.862 0.491 56.96 I 2.5 mm 61.60 4.2 0.42 0.7
Abstract
The invention provides a shaped catalyst carrier which is an inorganic refractory oxide having a monomodal mercury pore volume distribution wherein at least 50% of the total pore volume is present in pores having a pore diameter in the range of from 4 to 50 nm, a catalyst incorporating said carrier and having a high metals content. The catalyst finds use in hydrocracking refinery feedstocks.
Description
- This application claims priority to European patent application no. 04251241.8, filed Mar. 3, 2004.
- The present invention concerns a catalyst carrier suitable for a hydrocracking catalyst, a catalyst composition incorporating said carrier, the preparation of both carrier and catalyst composition and the use of the catalyst composition as a hydrocracking catalyst.
- Processes that comprise treating crude oil and other petroleum feedstocks with hydrogen in the presence of a catalyst are well known. One such process is hydrocracking, in which heavy distillate hydrocarbons are converted under hydrogen pressure into products of lower molecular weight in the presence of a catalyst. Hydrocracking is used in the oil industry to prepare a wide range of materials, ranging from C3/C4 production to luboil manufacture.
- Hydrocracking may be operated as either a single or two-stage process. Two-stage hydrocracking involves a first stage, which is predominantly a hydrotreatment stage wherein impurities and unsaturated compounds are hydrogenated in the presence of a first catalyst having a high hydrogenation function, and a second-stage where most of the cracking occurs in the presence of a second catalyst having a strong cracking function. In single-stage hydrocracking, the treatment and cracking steps occur in one reactor and may be performed using a single catalyst. The catalysts employed in hydrocracking are generally made from a carrier material on which there are deposited catalytically active metals such as nickel, molybdenum, tungsten, palladium etc.
- The higher the activity of a hydrocracking catalyst the more efficient a conversion will be. In particular, a more active catalyst can be operated at a lower temperature than a less active catalyst to achieve the same degree of conversion. This is advantageous as a lower operating temperature prolongs catalyst life and decreases operating costs. Accordingly, there is always a need for improving catalyst activity. There is also a continuing need to increase selectivity of catalytic action, particularly to increase the yield of middle distillate fractions and to reduce the production of light (C1-C4) gaseous materials.
- Prior proposals to improve selectivity and activity have mainly concentrated on proposing new active materials, such as modified Y zeolites or silica-alumina materials, or new formulations comprising several active ingredients to provide a combined activity and selectivity improvement. Prior art proposals include US 2002/0160911; WO 00/12213, and WO 2004/047988.
- The present invention provides a shaped catalyst carrier which comprises at least one inorganic refractory oxide, which carrier has a monomodal pore size distribution wherein at least 50% of the total pore volume is present in pores having a diameter in the range of from 4 to 50 nm and wherein the pore volume present in said pores is at least 0.4 ml/g, all as measured by mercury intrusion porosimetry.
- The inorganic refractory oxide material may be any conventional oxide material suitable for hydroconversion processes. These are suitably selected from alumina, silica, silica-alumina or a mixture of two or more thereof. However it is also possible to use zirconia, clays, aluminium phosphate, magnesia, titania, silica-zirconia and silica-boria, though these are not often used in the art. The oxide material maybe amorphous or crystalline, or a mixture of two or more such materials. Crystalline aluminosilicates are suitably zeolitic materials; faujasite zeolites, such as zeolite Y materials are very suitable.
- Preferred refractory oxides are those having a hydrocracking capability, and may be selected from amorphous silica-alumina and ultrastable zeolite Y oxidic materials.
- The term “amorphous” indicates a lack of crystal structure, as defined by X-ray diffraction, in the carrier material, although some short range ordering may be present. Amorphous silica-alumina suitable for use in preparing the catalyst carrier is available commercially. Conventional homogeneous amorphous silica alumina materials can be used, as can the heterogeneous dispersions of finely divided silica alumina in an alumina matrix, as described in U.S. Pat. Nos. 4,097,365 and 4,419,271. Alternatively, the silica-alumina may be prepared by a co-gelation process or a grafting process, as are well known in the art. The amorphous silica-alumina preferably contains silica in an amount in the range of from 25 to 95% by weight as calculated on the carrier alone (i.e. based on total carrier). More preferably the amount of silica in the carrier is greater than 35% wt, and most preferably at least 40% wt. A very suitable amorphous silica-alumina product for use in preparing the catalyst carrier of the invention comprises 45% by weight silica and 55% by weight alumina and is commercially available (ex. Criterion Catalysts and Technologies, USA).
- Preferred zeolitic Y materials are an ultrastable zeolite Y (USY) or a very ultrastable zeolite Y (VUSY) of unit cell size (ao) less than 2.440 nm (24.40 Ångstroms), in particular less than 2.435 nm (24.35 Ångstroms) and a silica to alumina ratio of from 4 or more, for example from 4 to 100. Suitable zeolite Y materials are known, for example, from European Patent Specifications Nos. 247 678 and 247 679, and WO 2004/047988.
- Whilst USY and VUSY Y zeolites are the preferred form of cracking component used in the present invention, other Y zeolite forms are also suitable for use, for example the known ultrahydrophobic Y zeolites.
- Preferred VUSY zeolite of EP-A-247 678 or EP-A-247 679 is characterised by a unit cell size below 2.445 nm (24.45 Ångstroms) or 2.435 nm (24.35 Ångstroms), a water adsorption capacity (at 25° C. and a p/po value of 0.2) of at least 8% w of the zeolite and a pore volume of at least 0.25 ml/g wherein between 10% and 60% of the total pore volume is made up of pores having a diameter of at least 8 nm.
- Most preferred are the low unit cell size, high surface area zeolite Y materials described in WO 2004/047988 and US 2004/0152587 which are incorporated herein by reference. Such materials can be described as a zeolite of the faujasite structure having a unit cell size in the range of from 24.10 to 24.40 Å, a bulk silica to alumina ratio (SAR) above 12, and a surface area of at least 850 m2/g as measured by the BET method and ATSM D 4365-95 with nitrogen adsorption at a p/po value of 0.03. Said materials are prepared by a process which comprises
-
- a) providing a starting zeolite of the faujasite structure having a silica to alumina ratio of from 4.5 to 6.5 and an alkali level of less than 1.5% wt;
- b) hydrothermally treating said starting zeolite at a temperature in the range of from 600 to 850° C., preferably 600 to 700° C. more preferably 620 to 680° C. and especially 630 to 670° C., and at a partial pressure of, preferably externally supplied, steam in the range of from 0.2 to 1 atmosphere for a time effective to produce a intermediate zeolite having a unit cell size of from 24.30 to 24.45 Å, being suitably in the range of from 0.5 to 5 hours, more suitably 1 to 3 hours;
- c) contacting the intermediate zeolite with an acidified solution comprising an acid and optionally an ammonium salt under conditions effective to produce a high surface area zeolite having a unit cell size in the range of from 24.10 to 24.40 Å, a molar silica to alumina ratio of greater than 12 and a surface area of greater than 850 m2/g, thereby producing the high surface area zeolite; and
- d) recovering said high surface area zeolite.
- Especially preferred high surface area materials have one or more of the following features:
-
- unit cell size in the range of from 24.14 to 24.38, preferably from 24.24, more preferably from 24.30, to 24.38, preferably to 24.36, especially to 24.35 Å, and maybe for example in the range of from 24.14 to 24.33 Å;
- a SAR in the range of from 20 to 100, preferably from 20 to 80, especially to 50;
- surface area of at least 875, preferably at least 890, for example at least 910 m2/g;
- a micropore volume,as determined by nitrogen porosimetry using the t-plot method, also known as the t-method, using nitrogen as the adsorbate as described by Lippens, Linsen and de Boer, Journal of Catalysis, 3-32,(1964), of greater than 0.28 ml/g, suitably greater than 0.30 ml/g. Generally micropore volume will be less than 0.40 ml/g, suitably less than 0.35 ml/g. Herein micropores are pores having a diameter of less than 2 nm.
- Mercury intrusion porosimetry is a standard technique to determine particularly mesoporosity and macroporosity of a refractory oxide or other solid porous materials since it can determine pore volume distributions of 4 nm and above. Mesopores herein are pores having a diameter in the range of from 4 to 50 nm; macropores herein are pores having a diameter above 50 nm. It is the aim of the present invention to maximise the mesoporosity and minimise the macroporosity of the carrier, and at least to increase the number of mesopores without increasing the number of macropores in the carriers.
- The shaped carrier of the invention has a monomodal distribution. This means that in a conventional pore size distribution (PSD) graph which shows dD plotted against dV/dD there is a single peak, suitably a single sharp peak, which in the case of the carrier of the invention lies in the mesopore range: pores of diameter in the range of from 4 to 50 nm. Herein D indicates pore diameter and V indicates pore volume. It is possible in carriers of the invention that a rounded or bell shaped curve could also exist in the macropore range of such a PSD graph; this is not a peak within the meaning of the present text.
- Preferably the mesopore pore volume is at least 0.45 ml/g, preferably at least 0.5 ml/g. Preferably the mesopore pore volume is at most 0.8 m/g, more preferably at most 0.7 ml/g. The nature of the inorganic refractory oxide can influence the most preferred mesopore pore volumes for the shaped carrier of the invention. Where the refractory oxide is wholly or predominantly amorphous in nature, for example an alumina, silica or amorphous silica-alumina material, then the mesopore pore volume is most suitably in the range of from 0.5 to 0.8 ml/g, preferably 0.6 to 0.75 ml/g, and more preferably 0.65 to 0.70 ml/g. Where the refractory oxide material comprises or contains a crystalline material, for example an aluminosilicate zeolite, particularly a zeolite Y material, then the mesopore pore volume is most suitably in the range of from 0.4 to 0.6 ml/g, preferably 0.45 to 0.6 ml/g, more preferably 0.5 to 0.6 ml/g.
- Preferably the proportion of the pore volume that is in the mesopores is at least 60% and at most 90%. Again the nature of the refractory oxide material can influence the most preferred proportions. Where the refractory oxide material is wholly or predominantly an amorphous material, as above, then most suitably the proportion of the pore volume in the mesopores is in the range of from 75 to 90%, preferably 80 to 90%, and more preferably 85 to 90%. Where the refractory oxide material comprises or contains a crystalline material, as above, then most suitably the proportion of the pore volume in the mesopores is in the range of from 50 to 75%, preferably from 60 to 75%.
- The effect of this high mesopore pore volume is that the compacted bulk density (CBD) of the catalyst carrier becomes greatly reduced. Reduction of the CBD can generally be desirable since it means that a reduced amount of expensive catalyst is required. There are various ways to reduce compacted bulk density, but other means do not result in an increased activity or middle distillate selectivity. By the use of a catalyst carrier of the invention the CBD of the final catalyst is lowered allowing a more economical catalyst refill for the refiner, but also surprisingly the activity of the catalyst is increased alongside an increased middle distillate selectivity and aromatics hydrogenation. This is particularly seen with the preferred zeolitic materials for use in the catalysts of the present invention: the high surface area zeolite Y materials described herein.
- A further advantage of the catalyst carrier of the invention is that this increased activity of the final catalyst is maintained over time, and thus the stability of the catalyst is greatly enhanced. This is particularly seen with catalyst carriers made wholly or predominantly, for example from 95 to 100 wt %, of amorphous refractory oxide materials.
- A yet further advantage of the shaped catalyst carrier of the invention is that the carrier when in extrudate form exhibits an increased strength and attrition resistance, and thus enables a longer catalyst lifetime in use.
- The CBD of the carrier of the invention is suitably in the range of from 0.35 to 0.50 g/ml, preferably 0.35 to 0.45 g/ml, more preferably 0.38 to 0.43 g/ml.
- In forming a catalyst carrier of the present invention, the refractory oxide material(s) may be usefully mixed with an amorphous binder component. The amorphous binder component may be any other refractory inorganic oxide or mixture of oxides conventional for such compositions. Generally this is an oxidic material not having a cracking capability and may be selected from, for example, alumina, silica, or a mixture thereof, alumina being preferred, but may also be a silica-alumina material, containing in the range of from 5 to 95% w silica, most suitably amorphous silica alumina materials hereinbefore mentioned. However again it is also possible to use zirconia, clays, aluminium phosphate, magnesia, titania, silica-zirconia and silica-boria, though these are not often used in the art. The amount of binder is generally in the range of from 0 to 70 wt % and is suitably less than 50 wt %, and may be less than 30 wt %. However where a zeolite is present in the carrier, the amount of zeolite in the catalyst support when binder is also present may be up to 90% by weight, but is preferably in the range of from 2, more preferably 10, especially 20, to 80% by weight, based on the total catalyst support, with the balance being binder.
- It is possible, and may be preferred in certain cases, for the catalyst carrier, and thus the catalyst composition, of the present invention, also to include a second cracking component. This is preferably a second zeolite. Most preferably a second zeolite is selected from zeolite beta, zeolite ZSM-5, or a zeolite Y of different unit cell size. Where a second zeolite Y is used, preferably it has a unit cell size greater than 24.40 Å. A second cracking component may be present in an amount up to 20 parts by weight, based on total zeolite plus binder, but preferably is present in an amount in the range of from 0.5 to 10 parts by weight.
- It should be noted that amorphous silica alumina may act both as a second cracking component and as a binder. As a cracking component it is most usefully employed in high operating temperature processes; as a binder it has been found useful in protecting a zeolite from loss of crystallinity, and therefore from deactivation, in use in any process that water and/or fluoride is present or generated.
- The shaped carrier may be prepared by any conventional way of compressing the refractory oxides into a shaped form. It is a routine measure to check the mesporosity of the resulting materials once prepared. Compression may be via pelletization, extrusion or other compression means common in the art. We have found that the mesoporous shaped carrier of the present invention may be prepared more consistently if the oxides are prepared from a mix having a selected LOI (loss on ignition). Additional consistency of material is obtained if the mix has a selected pH range.
- The present invention provides a process for the preparation of the shaped catalyst carrier of the invention, which comprises shaping a mix comprising said at least one refractory oxide wherein the mix has an LOI in the range of from 55 to 65%.
- Herein loss on ignition (LOI) for a material is the relative amount of lost mass upon heating the material, i.e. the water content. Unless otherwise specified herein, this is determined herein by heating the material to 540° C. under the following procedure: a sample is mixed well to prevent any inhomogeneity. The weighed sample is transferred into a weighed and precalcined crucible. The crucible is place to a preheated oven at 540° C. for a minimum time of 15 minutes, but typically for 1 hour. The crucible containing the dried sample is weighed again, and the LOI is determined according to the formula:
LOI%=(w−w calc)/w*100%
where w is the original weight of the sample, wcalc is the weight of the calcined sample after heating in the oven, both corrected with the weight of the crucible. - The mix may be formed of the refractory oxide materials and additional components, eg binder, with an aqueous liquid, most suitably water. The oxidic and binder materials are usually used in powder or crystal form. Shaping is most suitably and preferably by extrusion.
- Conventionally extrusion mixes have an LOI determined by the need to combine particulate materials into a form which can be forced as a combined homogeneous entity through an extrusion die wherein the shear forces and generated heat cause fusion of the component materials into a shaped product which will maintain its integrity over time and in use, i.e. maintain mechanical strength. An extrusion mix is conventionally formed as a dough-like material through kneading or mulling with the addition of water. The water will penetrate the pores of the materials as well as the interstices between materials. The LOI of an extrusion mix is therefore different depending on the nature (porosity) of the materials and size of the particles, and is often in the range of from 50 to 70%. The process of the present invention generally requires a higher water content for the mix than would normally or conventionally be applied for the materials utilised. Thus if a mix would normally require a 54% LOI, then a higher LOI, eg 58%, will increase the mesoporosity of the carrier.
- The LOI is most suitably at least 56%, very suitably at least 57%, preferably at least 58%, more preferably at least 59%, especially at least or just in excess of 60%. Since LOI can be assessed to a high accuracy, ‘in excess’ includes for example 60.01%. Most preferably the LOI is in the range of from 60, or just in excess of 60, to 75%, particularly for carriers in which the refractory oxide is wholly or predominantly amorphous silica alumina.
- Preferably the extrusion mix has an acidic pH, i.e. a pH of 7.0 or less. Most preferably the pH is in the range of from 3.5, suitably 4.0, to 7.0; more preferably 4.0 to 5.0, especially 4.2 to 4.7.
- A suitable combination of LOI and pH conditions are an LOI of from 58, very suitably 60 or just in excess of 60, to 75%, and a pH in the range of from 3.5, preferably 4.0, to 5.0.
- Any convenient mono-basic acid may be used to adjust the pH for the acidic solution; examples are nitric acid and acetic acid. During extrusion, conventionally extrusion aids may be utilized; usual extrusion aids include Superfloc, obtainable from Nalco.
- Extrusion may be effected using any conventional, commercially available extruder. In particular, a screw-type extruding machine may be used to force the mixture through orifices in a die plate to yield carrier extrudates of the required form, e.g. cylindrical or trilobed. The strands formed on extrusion may then be cut to the appropriate length.
- The form of the carrier extrudates can also affect the activity of the final catalyst as is known in the art. The form is very suitably a conventional TRILOBE, twisted trilobe, or quadrilobe form (Trilobe is a trade mark). The form may usefully be a shaped trilobe as described in International patent publication WO 03/013725. Thus it may usefully be an elongate, shaped particle comprising three protrusions each extending from and attached to a central position aligned along the central longitudinal axis of the particle, the cross-section of the particle occupying the area encompassed by the outer edges of six outer circles around a central circle minus the area occupied by three alternating outer circles, wherein each of the six outer circles is touching two neighbouring outer circles and wherein three alternating outer circles are equidistant to the central circle, have the same diameter, and may be attached to the central circle. The three alternating outer circles preferably have a diameter in the range of from 0.74 to 1.3 times the diameter of the central circle, and more preferably have the same diameter as the central circle. Such particles most usefully have a length to diameter (L/D) ratio of at least 2, preferably in the range of from 2 to 5, and a length in the range of from 1 to 25 mm.
- If desired, the carrier extrudates may be dried, e.g. at a temperature of from 100 to 300° C. for a period of from 30 minutes to 3 hours, prior to calcination.
- Calcination is conveniently carried out in air at a temperature in the range of from 300 to 850° C., preferably from 400 to 825° C., for a period of from 30 minutes to 4 hours.
- Specifically for the preparation of the shaped carrier when the oxide is an amorphous material, especially an amorphous silica alumina, any of the general carrier preparation techniques known in the art may be utilised, with the LOI and pH conditions adapted as above. A preferred method for the preparation of such a carrier comprises mulling a mixture of the amorphous silica-alumina and a suitable liquid, extruding the mixture and drying and heating the resulting extrudates, at a temperature in the range of from 400 to 850° C., as for example described in WO-9410263 but is preferably from 650° C. to 850° C., more preferably 700° C. to 825° C., especially 750° C. to 810° C. The extrudates may have any suitable form known in the art, for example cylindrical, hollow cylindrical, multilobed or twisted multilobed. A preferred shape for the catalyst particles is multilobed, for example trilobed. Typically, the extrudates have a nominal diameter of from 0.5 to 5 mm, preferably from 1 to 3 mm. After extrusion, the extrudates are dried. Drying may be performed at an elevated temperature, preferably up to 300° C., more preferably up to 200° C. The period for drying is typically up to 5 hours, preferably in the range of from 30 minutes to 3 hours. Preferably, the extrudates are then calcined after drying at very high temperature, as above, typically for a period of up to 5 hours, preferably in the range of from 30 minutes to 4 hours.
- The present invention further provides a catalyst composition which comprises a carrier of the present invention, and at least one hydrogenation metal component selected from Group VIb and Group VIII.
- At least one hydrogenation metal component is incorporated into the catalyst of the invention. This addition may occur at any stage during catalyst preparation, using techniques conventional in the art. For example, the hydrogenation component can be added to the oxide, or a mixture of oxide and binder, through co-mulling. However preferably the hydrogenation component is added to the formed extrudates either before or after optional calcining, using conventional impregnation techniques, eg as one or more aqueous impregnating solutions of Group VIB and/or Group VIII metal salts. If the impregnation occurs after calcination of the formed extrudates, then a further drying and optional calcination procedure is usefully employed.
- Herein reference is made to the Periodic Table of Elements which appears on the inside cover of the CRC Handbook of Chemistry and Physics (‘The Rubber Handbook’), 66th edition and using the CAS version notation.
- Suitably the hydrogenation component is selected from nickel, cobalt, molybdenum, tungsten, platinum and palladium.
- Examples of hydrogenation components that may thus suitably be used include Group VIB (e.g. molybdenum and tungsten) and Group VIII metals (e.g. cobalt, nickel, iridium, platinum and palladium), their oxides and sulphides. The catalyst composition will preferably contain at least two hydrogenation components, e.g. a molybdenum and/or tungsten component in combination with a cobalt and/or nickel component. Particularly preferred combinations are nickel/tungsten and nickel/molybdenum. Very advantageous results are obtained when these metal combinations are used in the sulphide form.
- The present catalyst composition may contain up to 50 parts by weight of hydrogenation component, calculated as metal per 100 parts by weight (dry weight) of total catalyst composition. For example, the catalyst composition may contain from 2 to 40, more preferably from 5 to 30 and especially from 10 to 20, parts by weight of Group VIB metal(s) and/or from 0.05 to 10, more preferably from 0.5 to 8 and advantageously from 1 to 6, parts by weight of Group VIII metal(s), calculated as metal per 100 parts by weight (dry weight) of total catalyst composition.
- Particularly where the oxide is amorphous and especially amorphous silica alumina, the amount of Group VIII metal and Group VIB metal in the catalyst may vary depending on the metal type and the intended purpose of the catalyst, however, the amount of Group VIII metal will preferably be in the range of from 0.5 to 10% wt, whilst the amount of Group VIB metal will preferably be in the range of from 3 to 30% wt, measured as the metal, based on total weight of catalyst. A preferred catalyst according to the present invention, comprises nickel in an amount in the range of from 1 to 6% wt, more preferably 3 to 5% wt; and molybdenum in an amount in the range of from 6 to 18% wt, preferably 10 to 15% wt, or tungsten in an amount in the range of from 10 to 25% wt, preferably 15 to 22% wt.
- As previously noted the Group VIII and Group VIB metals may be deposited on the carrier using any of the suitable methods known in the art, for example by ion exchange, competitive ion exchange or impregnation. Conveniently, the metals may be deposited by impregnating the carrier with an impregnation solution comprising appropriate metal-containing compounds, and optionally a chelating agent such as ethylene glycols, ethylene diamine, tartaric acid, malonic acid, citric acid, malic acid, nitriloacetic acid or ethylenediaminetetraacetic acid(EDTA). After impregnation, the catalyst is preferably dried at a temperature of up to 200 ° C., then heated or calcined at a temperature in the range of from 200 to 600° C.
- It has been found that the mesoporous carrier of the present invention permits a higher metals incorporation with a greater metal accessibility as well as a lower CBD for the resulting catalyst. This in turn permits a higher hydrogenation activity such that not only is an increased aromatics hydrogenation obtained but also desulphurisation can be given. This means that to achieve current low sulphur requirements for fuels, it would not be necessary to apply a further treatment with a desulphurisation catalyst.
- In addition to the carrier of the invention possessing a uniquely low compacted bulk density (CBD), the catalyst composition of the invention has a CBD of at most 0.70, preferably at most 0.68, ml/g. The CBD is generally at least 0.55 ml/g; suitably at least 0.6 ml/g, and preferably at least 0.62 ml/g. Generally a catalyst composition based on an amorphous silica alumina carrier, especially one essentially free of aluminosilicate zeolite, suitably has a CBD in the range of from 0.60 to 0.65 ml/g.
- For most preferred formulations containing amorphous silica-alumina or zeolite Y oxidic materials it is thus preferred that the Group VIb metal is tungsten present in an amount in the range of from 20 to 27 wt %, most preferably 21 to 27 wt %, especially 21 wt %, calculated as the trioxide and based on total weight of catalyst, and that the Group VIII metal is nickel present in an amount in the range of from 4 to 6 wt %, preferably 5 to 6 wt %, especially 5 wt %, calculated as the oxide and based on total weight of catalyst.
- It can be difficult to impregnate such a high amount of metals using conventional impregnation solutions. We have found particularly that the use of an organic compound having at least two moieties selected from carboxyl, carbonyl and hydroxyl, but especially from carboxyl groups, assists in the impregnation.
- The present invention therefore provides a process for the preparation of a catalyst composition of the invention, which comprises drying or calcining a carrier of the present invention, if necessary or desired, and depositing at least one hydrogenation metal selected from Group VIb and Group VIII in the appropriate amount, wherein the deposition is effected by an impregnation solution containing an organic compound having at least two moieties selected from carboxyl, carbonyl, and hydroxyl groups. Following deposition the composition is suitably dried at elevated temperature, or by aging at room temperature until drying is effected. Most suitably drying occurs at a temperature in the range of from 100 to 200° C., eg 120° C. Calcination is preferably carried out, eg at a temperature in the range of from 200 to 500° C., but is optional.
- The process preferably utilises an organic compound which is an organic acid selected from citric acid, tartaric acid, oxalic acid, malonic acid and malic acid.
- Where the inorganic refractory oxide material of the carrier is an amorphous material, and particularly an amorphous alumina or the more preferred amorphous silica alumina, and is essentially free of zeolitic material, then the catalyst composition may further usefully contain one or more promoter elements.
- Promoters to enhance the performance of catalysts based on amorphous carrier materials are known and described in the art. Thus silicon promotion is disclosed for amorphous catalyst compositions for a variety of uses in WO 95/11753, U.S. Pat. No. 5,507,940, EP-A-533,451, and EP-A-586,196. Other promoters are also known particularly for use in amorphous-based hydrocracking catalysts, for example in US-A-2002/0160911 and U.S. Pat. No. 6,251,261 the use of boron and phosphorus is disclosed in addition to silicon as a promoter.
- Thus the catalyst composition of the invention when utilising a shaped carrier of the invention consisting essentially of an amorphous inorganic refractory oxide material may contain in the range of from 0 to 20 wt %, preferably 0.1 to 15 wt %, and more preferably 0.1 to 10 wt % of a promoter element selected from silicon, boron and phosphorus, preferably silicon and boron, especially silicon. Where the promoter is silicon and the oxide comprises a silica material, then the amount of promoter silicon is additional to the amount of silicon present in the silica oxide material. Preferably the oxide is silica-alumina and the promoter is selected from silicon and boron; most preferably the promoter is silicon.
- Many silicon sources can be used. Thus, it is possible to use ethyl orthosilicate Si(OEt)4, siloxanes, polysiloxanes, silicones, silicone emulsions, halide silicates such as ammonium fluorosilicate (NH4)2SiF6 or sodium fluorosilicate Na2SiF6. The silicomolybdic acid and its salts, and the silicotungstic acid and its salts can also be used advantageously. The silicon may also be added by, for example, impregnation of ethyl silicate in solution in a water/alcohol mixture. The silicon can be added by, for example, impregnation of a silicon compound of silicone type or silicic acid that is suspended in water.
- The boron source may be boric acid, preferably orthoboric acid H3BO3, ammonium biborate or ammonium pentaborate, boron oxide, or boric esters. Boron can be introduced, for example, in the form of a mixture of boric acid, oxidized water and a basic organic compound that contains nitrogen, such as ammonia, primary and secondary amines, cyclic amines, the compounds of the pyridine family and quinolines, and the compounds of the pyrrole family. Boron may be introduced by, for example, a solution of boric acid in a water/alcohol mixture.
- Suitable phosphorus sources are orthophosphoric acid H3PO4, and its salts and esters, such as the ammonium phosphates. The phosphorus can, for example, be introduced in the form of a mixture of phosphoric acid and a basic organic compound that contains nitrogen, such as ammonia, primary and secondary amines, cyclic amines, compounds of the pyridine family and quinoliines and compounds of the pyrrole family.
- We have found that the increase in catalyst activity that results from treating the hydrocracking catalyst with a liquid silicon-containing compound is confined to catalysts based on a predominantly amorphous silica-alumina carrier, and is not achieved when using an aluminosilicate zeolite carrier. Indeed, it has been found that the presence of aluminosilicate zeolite material in the amorphous silica-alumina carrier reduces the advantageous properties imparted by the promoter. Accordingly where the catalyst of the invention contains a promoter element then the carrier has to be essentially free of aluminosilicate zeolite, i.e. the amount of aluminosilicate zeolite in the carrier is less than 1% wt, based on total carrier, more preferably less than 0.5% wt and even more preferably less than 0.1% wt. Most preferably, the carrier contains no aluminosilicate zeolite.
- A promoted hydrocracking catalyst employed in the process of the present invention preferably comprises at least 0.5% wt of silicon based on total weight of catalyst, which silicon has been incorporated in the catalyst by treating the amorphous silica-alumina carrier with a liquid silicon-containing compound. For the avoidance of doubt, the amount of silicon incorporated by treatment with the liquid silicon-containing compound is additional to the silicon in the amorphous silica-alumina carrier. The additional silicon may be incorporated by treating the carrier with a liquid-silicon containing compound either before or after the metal components have been deposited on the carrier, however, in a preferred embodiment of the present invention the carrier is treated with the liquid silicon-containing compound after the metal components have been deposited on the carrier.
- The liquid silicon-containing compound may be any silicon-containing compound that may act as a source of silicon and which may be applied to the carrier in liquid form. Preferably, the liquid silicon-containing compound is of general formula:
wherein U, V, W, X, Y, and Z can each individually and independently represent —R, —OR, —Cl, —Br, —SiH3, —COOR, —SiHnClm, R being either hydrogen, or an alkyl, cycloalkyl-, aromatic, alkyl aromatic, alkylcycloalkyl radical having from 1 to 30 carbon atoms, “n” and “m” being whole numbers in the range of from 1 to 3 and “a” being a whole number in the range of from 0 to 1000. Preferably “a” is no more than 100, more preferably no more than 80, as liquids wherein “a” is greater than 100 have a high viscosity and are thus inconvenient to apply to the carrier. - In a particularly preferred embodiment, the liquid silicon-containing compound is of general formula
wherein U, V, W, X, Y, and Z can each individually and independently represent —R or —OR, R being either hydrogen, or an alkyl, cycloalkyl, alkylcycloalkyl radical having from 1 to 30 carbon atoms and “a” being a whole number in the range of from 0 to 60. - Examples of liquid silicon-containing compounds that may advantageously be employed in the present invention include alkyl orthosilicates such as ethyl orthosilicate (Si(OEt)4), methyltriethyl siloxane (Si(OEt)3Me), and silicone oils such as polydimethylsiloxane.
- A convenient means of treating the carrier with the liquid silicon-containing compound comprises adding the liquid to the carrier and subsequently heating the silicon-liquid treated carrier at elevated temperature, typically in the range of from 100 to 400° C. In order to facilitate the treatment, the liquid silicon-containing compound may optionally be dissolved in a suitable organic solvent such as a lower alkane, however, in some circumstances, for example when preparing a large quantity of catalyst, the liquid silicon-containing compound may be applied neat. As will be understood by those skilled in the art, the amount of liquid silicon-containing compound applied to the carrier may vary depending on the particular silicon-containing compound employed, however, it is preferably such that the amount of silicon deposited on the carrier, as determined by elemental analysis, is at least 1% wt, based on total catalyst. More preferably the amount of silicon is in the range of from 1 to 10% wt, even more preferably 1 to 5% wt, based on total catalyst.
- In a preferred embodiment of the present invention, the promoted hydrocracking catalyst is prepared by a process which comprises impregnating an amorphous silica-alumina carrier with a Group VIII metal and a Group VIB metal, heating the impregnated carrier at a temperature in the range of from 150 to 500° C., treating the impregnated carrier with a liquid silicon-containing compound, and then heating the silicon-liquid treated catalyst at a temperature in the range of from 100 to 300° C.
- When preparing the hydrocracking catalyst in accordance with the above preferred embodiment, the activity of the catalyst may be optimised by varying the temperature at which the catalyst is heated. In this regard, very good results have been achieved when the heating temperature following metal impregnation is in the range of from 150 to 250° C., and the heating temperature following silicon-compound treatment is in the range of from 150 to 250° C.
- In the process of the present invention, all hydrocracking catalysts of the invention, whether promoted or not, are preferably sulphided prior to use. The catalyst may conveniently be sulphided by any of the techniques known in the art, such a ex-situ or in-situ sulphidation. For example, sulphidation may be performed by contacting the catalyst with a sulphur-containing gas, such as a mixture of hydrogen and hydrogen sulphide, a mixture of hydrogen and carbon disulphide or a mixture of hydrogen and a mercaptan, such as butylmercaptan. Alternatively, sulphidation may be carried out by contacting the catalyst with hydrogen and a sulphur-containing hydrocarbon oil, such as sulphur-containing kerosene or gas oil. The sulphur may also be introduced into the hydrocarbon oil by the addition of a suitable sulphur-containing compound, for example dimethyldisulphide or tert-nonylpolysulphide.
- The present invention also provides a process for converting a hydrocarbonaceous feedstock into lower boiling materials which comprises contacting the feedstock with hydrogen at elevated temperature and elevated pressure in the presence of a catalyst composition according to the present invention. Such a process is commonly termed hydrocracking.
- Examples of such processes comprise single-stage hydrocracking, two-stage hydrocracking, and series-flow hydrocracking. Definitions of these-processes can be found in pages 602 and 603 of Chapter 15 (entitled “Hydrocarbon processing with zeolites”) of “Introduction to zeolite science and practice” edited by van Bekkum, Flanigen, Jansen; published by Elsevier, 1991.
- It has been found that particularly with catalysts containing carriers comprising the preferred amorphous silica alumina and/or zeolitic materials of the present case and the high metals contents mentioned above, the catalyst formed can also exhibit good hydrodesulpurisation of the remaining sulphur in a conventional hydrocracking feedstock. Furthermore the presence of nitrogen contaminants in the feedstock does not hinder or deactivate the catalysts of the invention.
- It will be appreciated that the hydroconversion processes of the present invention can be carried out in any reaction vessel usual in the art. Thus the process may be performed in a fixed bed or moving bed reactor. Also the catalyst of the invention may be used in conjunction with any suitable co-catalyst or other materials usual in the art. Thus for example the catalyst of the invention may be used in stacked bed formation with one or more other catalysts useful in hydroprocessing, for example with a catalyst containing a different zeolite, with a catalyst containing a faujasite zeolite of different unit cell size, with a catalyst utilizing an amorphous carrier, and so on. Various stacked bed combinations have been proposed in the lierature: WO-99/32582; EP-A-310,164; EP-A-310,165; and EP-A-428,224 may, for example, be mentioned. As noted above, with preferred catalyst compositions of the present invention additional post-treatment with a hydrotreating catalyst to remove residual sulphur may not be necessary.
- The hydrocarbonaceous feedstocks useful in the present process can vary within a wide boiling range. They include atmospheric gas oils; coker gas oils; vacuum gas oils; deasphalted oils; fractions, eg gas oils and waxes, obtained from a Fischer-Tropsch synthesis process, long and short residues, catalytically cracked cycle oils, thermally or catalytically cracked gas oils, and syncrudes, optionally originating from tar sand, shale oils, residue upgrading processes and biomass. Combinations of various hydrocarbon oils may also be employed. The feedstock will generally comprise hydrocarbons having an initial boiling point of at least 330° C. The boiling range will generally be from about 330 to 650° C., with preference being given to feedstocks having a boiling range of from about 340 to 620° C. The feedstock may have a nitrogen content of up to 5000 ppmw (parts per million by weight) and a sulphur content of up to 6% w. Typically, nitrogen contents are in the range from 250 to 2000 ppmw and sulphur contents are in the range from 0.2 to 5% w. It is possible and may sometimes be desirable to subject part or all of the feedstock to a pre-treatment, for example, hydrodenitrogenation, hydrodesulphurisation (HDS) or hydrodemetallisation, methods for which are known in the art.
- The process of the invention may conveniently be carried out at a reaction temperature in the range of from 250 to 500° C., preferably in the range of from 300 to 450° C.
- The present process is preferably carried out at a total pressure (at the reactor inlet) in the range of from 3×106 to 3×107 Pa, more preferably from 4×106 to 2.5×107 Pa and even more preferably from 8×106 to 2×107 Pa. Where a hydrocracking process is carried out at a low pressure of, for example 4×106 to 1.2×107 Pa, this may be termed ‘mild hydrocracking’.
- The hydrogen partial pressure (at the reactor inlet) is preferably in the range from 3×106 to 2.9×107 Pa, more preferably from 4×106 to 2.4×107 Pa and still more preferably from 8×106 to 1.9×107 Pa.
- A space velocity in the range from 0.1 to 10 kg feedstock per litre catalyst per hour (kg.1−1.h−1) is conveniently used. Preferably the space velocity is in the range from 0.1 to 10, particularly from 0.2 to 8, and preferably from 0.5 to 5 kg.1−1.h−1.
- The ratio of hydrogen gas to feedstock (total gas rate or the gas/feed ratio) used in the present process will generally be in the range from 100 to 5000 N1/kg, but is preferably in the range from 200 to 3000 N1/kg, more preferably 250 to 2000 N1/Kg.
- The hydrocracking process of the present invention may be used to particularly advantageous effect in single-stage hydrocracking, wherein it gives a good efficiency of conversion even on exposure to feedstocks comprising nitrogen and sulphur-containing contaminants.
- One application of single-stage hydrocracking is the production of middle distillate fractions. Middle distillate fractions are liquid fractions having a boiling point in the range of from 150 to 370° C., and include products such as kerosene (150 to 250° C.) and gas oil (250 to 370° C.). There is a growing demand for middle distillate products, and as such there is always a need for hydrocracking processes that show a strong selectivity for middle distillates with minimum formation of gaseous (C1-C4) material, i.e. processes whose products contain low amounts of gaseous material and high amounts of middle distillate. In this regard, the hydrocracking process of the present invention has proven to be extremely selective at converting heavy distillate feedstocks, such as heavy gas oils or deasphalted oils to middle distillate fractions.
- Accordingly, a preferred embodiment of the present invention provides for the single-stage conversion of a heavy gas oil or a deasphalted oil to a middle distillate fraction.
- The present invention will now be illustrated by the following Examples.
- By the following general procedure catalyst carriers and catalysts were prepared using different amounts of zeolite and inorganic refractory oxide in each catalyst formulation as noted below.
- General Procedure:
- A catalyst carrier was prepared by mixing a zeolite with refractory inorganic oxide in the proportions required. Water and acid were added in order to achieve the specified LOI and pH and the mixture mulled in a mix-muller until an extrudable mix was obtained. The mixture was then extruded, together with an extrusion aid (Superfloc), into extrudates having, in cross-section, a tri-lobe shape. The extrudates were dried statically for 2 hours at 120° C. and then calcined for 2 hours at 535° C. The catalyst particles so-obtained were cut to be of regular length with a diameter of either 1.5 mm or 2.5 mm, measured from the top to the bottom of a nominal triangle formed by the tri-lobe.
- The metal hydrogenation components of nickel and tungsten were then incorporated by impregnation of the pellets with an homogenized aqueous solution of nickel nitrate and ammonium metatungstate. Citric acid or malic acid was incorporated into certain of the impregnation solutions as noted. The impregnated extrudates were dried at ambient conditions in hot circulating air for 1 hour and then at 120° C. for 2 hours and finally calcined at 500° C. for 2 hours.
- Activity Testing
- The hydrocracking performance of the catalysts was assessed in a number of second stage series-flow simulation tests. The testing was carried out in once-through microflow equipment which had been loaded with a top catalyst bed comprising 1 ml C-424 catalyst (commercially available from Criterion Catalysts & Technologies USA) diluted with 1 ml of 0.1 mm SiC particles and a bottom catalyst bed comprising 10 ml of the test catalyst diluted with 10 ml of 0.1 mm SiC particles. Both catalyst beds were presulphided prior to testing.
- Each test involved the sequential contact of a hydrocarbonaceous feedstock (a heavy gas oil) with the top catalyst bed and then the bottom catalyst bed in a once-through operation under the following process conditions: a space velocity of 1.5 kg heavy gas oil per litre catalyst per hour (kg.1−1.h−1), a hydrogen gas/heavy gas oil ratio of 1440 N1/kg, a hydrogen sulphide partial pressure of 5.6×105 Pa (5.6 bar) and a total pressure of 14×106 Pa (140 bar).
- A standard heavy gas oil test feed was used having the following properties:
Carbon content 86.64% w Hydrogen content 13.36% w Sulphur (S) content 122 ppmw Nitrogen (N) content 12 ppmw Added n-Decylamine 12.3 g/kg (equivalent to 1100 ppmw N) Total nitrogen (N) content 1112 ppmw Density (15/4° C.) 0.8805 g/ml Density (70/4° C.) 0.8463 g/ml Molar weight 433 g Initial boiling point 355° C. 50% w boiling point 425° C. Final boiling point 606° C. Fraction boiling below 370° C. 2.57% wt Fraction boiling above 540° C. 10.0% wt - Hydrocracking performance was assessed at conversion levels between 40 and 90% wt net conversion of feed components boiling above 370° C. To compare activity, the obtained results, expressed as the temperature required to obtain 65% wt net conversion of feed components boiling above 370° C., are shown in the Tables below.
- Hydrodesulphurisation (HDS) activity was assessed using the same test feed and under the same conditions as above but without using hydrogen sulphide addition.
- Loss on ignition (LOI) was assessed by the method hereinbefore described. Compacted bulk density was assessed following the method of ASTM D 4180-03 except that a tamper is placed on the top of the test sample within a 250 ml graduated cylinder placed firmly on a vibrating table, and the sample is assessed without predrying and a correction for dry weight is made separately according to the formula
Here LOI is determined by the same method described herein but with heating to 485° C. - Total pore volume and mesopore volume were determined by mercury intrusion porosimetry following ASTM D4284-03.
- In carriers C to K the same high surface area USY zeolite Y was used and is a very ultrastable zeolite Y having a unit cell size of 24.32 Å, a molar silica to alumina ratio of 29, a BET surface area of 893 m2/g, and a micropore volume of 0.298 ml/g, prepared as described in WO 2004/047988. Herein, unit cell size is determined by X-ray diffraction using ASTM D 3942-80; SAR is bulk or overall SAR and is determined by chemical analysis; BET surface area is determined by the BET method of Brunauer, Emmett and Teller, J.Am. Chm. Soc., 60, 309 (1938), and ASTM D4365-95 using a single point assessment from nitrogen adsorption at a p/po value of 0.03; micropore voume is assessed by the t-plot method using nitrogen as adsorbate as described by Lippens, Linsen and de Boer, Journal of Catalysis, 3-34 (1964).
- The carriers used have the following compositions. All percentages are percentages by weight, basis total carrier. Unless otherwise stated, the amorphous silica alumina is Al—Si:55-45% w and the alumina is wide pore alumina, both available from Criterion Catalysts and Technologies, USA (CC&T).
- Carrier A has 10% USY zeolite Y of SAR 10; 22.5% alumina; 62.5% amorphous silica alumina
- Carrier B has 10% USY zeolite of SAR 10; and 90% amorphous silica alumina
- Carrier C has 48% high surface area USY zeolite Y; 8% alumina; 44% amorphous silica alumina
- Carrier D has 50% high surface area USY zeolite Y; 8% alumina; 42% amorphous silica alumina
- Carrier E has 45% high surface area USY zeolite Y; 9% alumina; 46% amorphous silica alumina
- Carrier F has 45% high surface area USY zeolite Y; 9% alumina; 46%amorphous silica alumina
- Carrier G has 35% high surface area USY zeolite Y; 34% silica alumina (containing 6% silica, available from CC&T); 31% wide pore alumina available from CCIC
- Carriers H to K have 35% high surface area USY zeolite Y; 10% alumina; 55% amorphous silica alumina.
- The catalysts used have the following metal loadings given as % w basis total catalyst weight.
- Catalysts 1,2 and 14 have 5 wt % nickel and 21 wt % tungsten
- Catalysts 3, 4, 7, and 13 have 3.3 wt % nickel and 16 wt % tungsten
- Catalysts 5, 6, 8 to 11 have 4 wt % nickel and 17 wt % tungsten
- Catalyst 12 has 2 wt % nickel and 6.5 wt % tungsten.
- In the Tables below TL indicates trilobe; TX indicates a shaped trilobe of the type described in WO 03/013725.
Hg total pore LOI extrusion Acidity volume Hg meso pore mix extrusion mix CBD (PV) volume % PV in Carrier Shape % w pH g/ml ml/g ml/g mesopores A 1.6 mm 0.52 0.66 B 1.6 mm 0.44 0.917 C 2.5 mm 54.80 3.4 0.52 0.516 0.368 71.31 D 2.5 mm 59.60 3.6 0.40 0.740 0.520 70.27 E 2.5 mm 56.80 3.7 0.43 0.696 0.490 70.40 F 2.5 mm 56.80 3.7 0.38 0.696 0.487 69.97 G 2.5 mm 60.40 5.8 0.42 0.864 0.459 53.12 H 2.5 mm 61.20 7.0 0.39 0.862 0.491 56.96 I 2.5 mm 61.60 4.2 0.42 0.782 0.558 71.35 J 2.5 mm 61.00 4.7 0.40 0.839 0.579 69.01 K 2.5 mm 58.60 4.4 0.42 0.778 0.576 74.04 -
Effect of carrier CBD/pore volume Carrier Hg Mono Tri+- Carrier pore volume T 65% w 370° C.+ C1-C4 C5-150° C. 150-370° C. arom. Di-arom. arom. Catalyst Carrier CBD g/ml ml/g ° C. % w % w % w % wof % wof % wof 1 A 0.52 0.66 398 2.8 27.4 69.8 47 81 75 2 B 0.44 0.92 399 2.3 27.7 70.1 44 80 75 3 C 0.52 0.52 374 4.7 36.8 58.4 28 71 64 4 D 0.40 0.74 371 4.1 34.5 61.4 44 85 78
In catalysts 1 and 2, a reduction solely in CBD brings little activity or selectivity advantage. The reduced CBD and increased mesopore volume shown by catalyst 4 of the invention however displays a higher activity, selectivity and hydrogenation compared with catalyst 3.
-
Effect of shape and surface area/metal load Carrier Carrier Hg T 65% w Mono Di- Tri+- CBD surface Area W 370+ C1-C4 C5-150° C. 150-370° C. arom. arom. arom. Catalyst Carrier Shape mm g/ml m2/g Ni % w % w ° C. % w % w % w % wof % wof % wof 5 E TL 2.5 0.43 257 4 17 377 4.8 35.2 60.0 37 82 76 6 F TX 2.5 0.38 257 4 17 376 4.5 33.5 62.0 38 81 74 72 F TX 2.5 0.38 257 3.3 14 375 3.2 33.8 63.0 38 82 78 -
Effect of mesopore volume Carrier Carrier Hg Hg mesopore T 65% w Mono Di- Tri+- CBD pore volume volume 370+ C1-C4 C5-150° C. 150-370° C. arom. arom. arom. Catalyst Carrier g/ml ml/g ml/g ° C. % w % w % w % wof % wof % wof 82 G 0.42 0.86 0.46 381 4.4 34.3 61.3 37 81 70 92 H 0.39 0.86 0.49 380 4.3 33.8 61.9 39 82 76 102 I 0.42 0.78 0.56 380 4.0 34.1 61.9 43 85 75 111 J 0.40 0.84 0.58 377 3.3 33.6 63.1 42 83 77 -
Effect of metals content T 65% w Mono Tri+- Ni W 370+ C1-C4 C5-150° C. 150-370° C. arom. Di-arom. arom. HDS Catalyst Carrier % w % w ° C. % w % w % w % wof % wof % wof % wof 121 K 2 6.5 382 3.8 35 61.0 44 81 72 76 131 K 3.3 16.2 380 3.3 33 63.2 71 91 83 92 141 K 5 21 378 3.5 31 65.4 77 94 87 93
1impregnation solution contains citric acid
2impregnation solution contains malic acid
% wof indicates percent weight removed basis original amount in feed.
Claims (18)
1. A shaped catalyst carrier which comprises at least one inorganic refractory oxide, which carrier has a monomodal pore size distribution wherein at least 50% of the total pore volume is present in pores having a diameter in the range of from 4 to 50 nm and wherein the pore volume present in said pores is at least 0.4 ml/g, all as measured by mercury intrusion porosimetry.
2. A catalyst carrier as claimed in claim 1 , wherein the pore volume present in pores of diameter from 4 to 50 nm is at least 0.5 ml/g.
3. A catalyst carrier as claimed in claim 2 , wherein at least 60% of the total pore volume is present in pores having a diameter in the range of from 4 to 50 nm.
4. A catalyst carrier as claimed in claim 3 , which comprises an amorphous silica-alumina material or a crystalline aluminosilicate faujasite material.
5. A catalyst carrier as claimed in claim 4 , wherein the compacted bulk density is in the range of from 0.35 to 0.50 g/ml.
6. A process for the preparation of a catalyst carrier, said process comprises shaping a mix comprising said at least one refractory oxide wherein the mix has an LOI in the range of from 55 to 75%.
7. A process as claimed in claim 6 , wherein the shaping is by extrusion.
8. A process as claimed in claim 7 , wherein the mix is an extrusion mix which has a pH in the range of from 3.5 to 7.0.
9. A process as claimed in claim 8 , wherein the LOI is in the range of from 58% to 75% and the pH is in the range of from 3.5 to 5.0.
10. A process as claimed in claim 9 , wherein acid is added to the extrusion mix to adjust the pH, which acid is selected from the group consisting of acetic acid and nitric acid.
11. A carrier obtainable by a process as claimed in claim 10 .
12. A catalyst composition which comprises a carrier as claimed in claim 1 , and at least one hydrogenation metal component selected from Group VIb and Group VIII metals.
13. A catalyst composition as claimed in claim 12 , wherein the Group VIb metal is tungsten present in an amount in the range of from 20 to 27 wt %, calculated as the trioxide and based on total weight of catalyst, and the Group VIII metal is nickel present in an amount in the range of from 4 to 6 wt %, calculated as the oxide and based on total weight of catalyst.
14. A process for the preparation of a catalyst composition which said process comprises calcining a carrier as claimed in claim 1; and depositing at least one hydrogenation metal selected from the group consisting of Group VIb and Group VIII in the appropriate amount, wherein the deposition is effected by an impregnation solution containing an organic compound having at least two moieties selected from carboxyl, carbonyl, and hydroxyl.
15. A process as claimed in claim 14 , wherein the organic compound is an organic acid selected from the group consisting of citric acid, tartaric acid, oxalic acid, malonic acid and malic acid.
16. A catalyst composition obtainable by the process as claimed in claim 15 .
17. A hydrocracking process which comprises contacting a hydrocarbonaceous feed with a catalyst composition as claimed in claim 12 at elevated temperature and pressure.
18. A catalyst composition as claimed in claim 12 , wherein the carrier is essentially free of aluminosilicate zeolite and wherein the carrier further comprises at least one promoter element selected from the group consisting of silicon and boron.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04251241.8 | 2004-03-03 | ||
EP04251241 | 2004-03-03 |
Publications (1)
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US20050197249A1 true US20050197249A1 (en) | 2005-09-08 |
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US11/069,425 Abandoned US20050197249A1 (en) | 2004-03-03 | 2005-03-01 | Catalyst carrier and catalyst composition, processes for their preparation and their use |
Country Status (11)
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US (1) | US20050197249A1 (en) |
EP (1) | EP1735094A1 (en) |
JP (1) | JP2007526119A (en) |
KR (1) | KR20070004776A (en) |
CN (1) | CN100428995C (en) |
BR (1) | BRPI0508276A (en) |
CA (1) | CA2558172A1 (en) |
RU (1) | RU2366505C2 (en) |
UA (1) | UA91016C2 (en) |
WO (1) | WO2005084799A1 (en) |
ZA (1) | ZA200606951B (en) |
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US20070084751A1 (en) * | 2003-12-31 | 2007-04-19 | Li Wang | Two Stage Hydrocracking Process Using Beta Zeolite for Production of LPG and Distillate Hydrocarbons |
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US20080011649A1 (en) * | 2006-07-17 | 2008-01-17 | Li Wang | Hydrocracking Catalyst Containing Beta and Y Zeolites, and Process for its use to make Distillate |
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Citations (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3130007A (en) * | 1961-05-12 | 1964-04-21 | Union Carbide Corp | Crystalline zeolite y |
US3992464A (en) * | 1974-11-08 | 1976-11-16 | Uop Inc. | Hydroprocessing aromatics to make cycloparaffins |
US4003851A (en) * | 1973-10-31 | 1977-01-18 | American Cyanamid Company | Stable alumina catalyst support, process therefor, and promoted support |
US4085069A (en) * | 1976-08-27 | 1978-04-18 | Filtrol Corporation | Hydrothermally stable catalysts containing ammonium faujasite zeolites |
US4097385A (en) * | 1975-01-30 | 1978-06-27 | Bayer Aktiengesellschaft | Fire-proofing sealing elements |
US4401556A (en) * | 1979-11-13 | 1983-08-30 | Union Carbide Corporation | Midbarrel hydrocracking |
US4419271A (en) * | 1979-10-15 | 1983-12-06 | Union Oil Company Of California | Hydrocarbon conversion catalyst |
US4572778A (en) * | 1984-01-19 | 1986-02-25 | Union Oil Company Of California | Hydroprocessing with a large pore catalyst |
US4784750A (en) * | 1985-06-04 | 1988-11-15 | Institut Francais Du Petrole | Catalytic cracking process |
US5160033A (en) * | 1988-03-30 | 1992-11-03 | Uop | Octane gasoline catalyst and process using same in a hydrocracking process |
US5187133A (en) * | 1990-03-30 | 1993-02-16 | Cosmo Oil Co., Ltd. | Catalyst composition for hydrotreating of hydrocarbons and hydrotreating process using the same |
US5223240A (en) * | 1989-08-16 | 1993-06-29 | Degussa Aktiengesellschaft | Method of preparing zeolite Y |
US5234876A (en) * | 1992-10-20 | 1993-08-10 | Corning Incorporated | Thermally stable chromium-exchanged zeolites and method of making same |
US5242677A (en) * | 1992-06-11 | 1993-09-07 | Pq Corporation | Stable zeolite of low unit cell constant and method of making same |
US5435987A (en) * | 1993-07-22 | 1995-07-25 | Pq Corporation | Process for preparing ammonium zeolites of low alkali metal content |
US5507940A (en) * | 1991-08-30 | 1996-04-16 | Shell Oil Company | Hydrodenitrification catalyst and process |
US5536687A (en) * | 1990-05-22 | 1996-07-16 | Uop | Catalyst containing zeolite Beta |
US6123831A (en) * | 1998-05-28 | 2000-09-26 | Institut Francais Du Petrole | Catalyst comprising a zeolite selected from the group formed by zeolites NU-85, NU-86 and NU-87, an element from group VB and its use in the hydroconversion of hydrocarbon petroleum charges |
US6136291A (en) * | 1998-10-08 | 2000-10-24 | Mobile Oil Corporation | Faujasite zeolitic materials |
US6251261B1 (en) * | 1998-06-25 | 2001-06-26 | Institut Francais Du Petrole | Catalyst that comprises a clay and an element of group VB, and its use in hydrocraking of petroleum feedstocks that contain hydrocarbon |
US20020160911A1 (en) * | 2001-01-15 | 2002-10-31 | Institut Francais Du Petrole | Catalyst that comprises a silica-alumina and its use in hydrocracking of hydrocarbon feedstocks |
US20030173256A1 (en) * | 2001-06-20 | 2003-09-18 | Takashi Fujikawa | Catalyst for hydrogenation treatment of gas oil and method for preparation thereof, and process for hydrogenation treatment of gas oil |
US20040064008A1 (en) * | 2002-09-30 | 2004-04-01 | Torsten Maurer | Molecular sieve catalyst composition |
US20040141911A1 (en) * | 2002-11-27 | 2004-07-22 | Pq Corporation, Inc. | High surface zeolites and methods for preparation and use thereof |
US20040152587A1 (en) * | 2002-11-27 | 2004-08-05 | Creyghton Edward Julius | Hydrocracking catalyst |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6115739A (en) * | 1984-04-25 | 1986-01-23 | Toa Nenryo Kogyo Kk | Hydrogenating-treatment catalyst |
JPS62199687A (en) * | 1986-04-28 | 1987-09-03 | ユニオン・オイル・コンパニ−・オブ・カリフオルニア | Hydrogenation using catalyst having large pores |
DE69119320T2 (en) * | 1990-08-03 | 1996-11-07 | Akzo Nobel Nv | Process for hydrodesulfurization |
MX9305801A (en) * | 1992-09-29 | 1994-07-29 | Texaco Development Corp | A NEW HYDROCONVERSION PROCESS USING A CATALYST WITH A SPECIFIED PORE SIZE DISTRIBUTION. |
JPH06154610A (en) * | 1992-11-27 | 1994-06-03 | Chevron Res & Technol Co | Catalyst for residual oil having high metal content, method for its production and process for its use |
EP0817676A1 (en) * | 1995-03-03 | 1998-01-14 | Shell Internationale Researchmaatschappij B.V. | Catalyst compositions and their use in hydrocarbon conversion processes |
CN1096296C (en) * | 1998-11-13 | 2002-12-18 | 中国石油化工集团公司 | Hydrocracking catalyst for producing middle distillate and its preparation method |
JP3553429B2 (en) * | 1999-03-29 | 2004-08-11 | 株式会社コスモ総合研究所 | Gas oil hydrotreating catalyst and gas oil hydrotreating method |
JP4643805B2 (en) * | 2000-07-28 | 2011-03-02 | 日本ケッチェン株式会社 | Heavy hydrocarbon oil hydrotreating catalyst and hydrotreating method |
CN1108356C (en) * | 2000-10-26 | 2003-05-14 | 中国石油化工股份有限公司 | High-activity high-or medium-oilness hydrocracking catalyst and its preparing process |
FR2863913B1 (en) * | 2003-12-23 | 2006-12-29 | Inst Francais Du Petrole | ZEOLITHIC CATALYST, SILICO-ALUMINUM MATRIX AND ZEOLITE BASE, AND METHOD FOR HYDROCRACKING HYDROCARBON LOADS |
JP3990673B2 (en) * | 2004-02-09 | 2007-10-17 | 触媒化成工業株式会社 | Hydrodesulfurization method of light oil |
-
2005
- 2005-03-01 WO PCT/EP2005/050866 patent/WO2005084799A1/en active Application Filing
- 2005-03-01 RU RU2006134729/04A patent/RU2366505C2/en active
- 2005-03-01 CN CNB2005800099444A patent/CN100428995C/en active Active
- 2005-03-01 US US11/069,425 patent/US20050197249A1/en not_active Abandoned
- 2005-03-01 BR BRPI0508276-5A patent/BRPI0508276A/en not_active IP Right Cessation
- 2005-03-01 CA CA002558172A patent/CA2558172A1/en not_active Abandoned
- 2005-03-01 EP EP05716843A patent/EP1735094A1/en not_active Withdrawn
- 2005-03-01 KR KR1020067019894A patent/KR20070004776A/en not_active Application Discontinuation
- 2005-03-01 JP JP2007501276A patent/JP2007526119A/en active Pending
- 2005-03-01 UA UAA200610342A patent/UA91016C2/en unknown
-
2006
- 2006-08-18 ZA ZA2006/06951A patent/ZA200606951B/en unknown
Patent Citations (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3130007A (en) * | 1961-05-12 | 1964-04-21 | Union Carbide Corp | Crystalline zeolite y |
US4003851A (en) * | 1973-10-31 | 1977-01-18 | American Cyanamid Company | Stable alumina catalyst support, process therefor, and promoted support |
US3992464A (en) * | 1974-11-08 | 1976-11-16 | Uop Inc. | Hydroprocessing aromatics to make cycloparaffins |
US4097385A (en) * | 1975-01-30 | 1978-06-27 | Bayer Aktiengesellschaft | Fire-proofing sealing elements |
US4085069A (en) * | 1976-08-27 | 1978-04-18 | Filtrol Corporation | Hydrothermally stable catalysts containing ammonium faujasite zeolites |
US4419271A (en) * | 1979-10-15 | 1983-12-06 | Union Oil Company Of California | Hydrocarbon conversion catalyst |
US4401556A (en) * | 1979-11-13 | 1983-08-30 | Union Carbide Corporation | Midbarrel hydrocracking |
US4572778A (en) * | 1984-01-19 | 1986-02-25 | Union Oil Company Of California | Hydroprocessing with a large pore catalyst |
US4784750A (en) * | 1985-06-04 | 1988-11-15 | Institut Francais Du Petrole | Catalytic cracking process |
US5160033A (en) * | 1988-03-30 | 1992-11-03 | Uop | Octane gasoline catalyst and process using same in a hydrocracking process |
US5223240A (en) * | 1989-08-16 | 1993-06-29 | Degussa Aktiengesellschaft | Method of preparing zeolite Y |
US5187133A (en) * | 1990-03-30 | 1993-02-16 | Cosmo Oil Co., Ltd. | Catalyst composition for hydrotreating of hydrocarbons and hydrotreating process using the same |
US5536687A (en) * | 1990-05-22 | 1996-07-16 | Uop | Catalyst containing zeolite Beta |
US5507940A (en) * | 1991-08-30 | 1996-04-16 | Shell Oil Company | Hydrodenitrification catalyst and process |
US5242677A (en) * | 1992-06-11 | 1993-09-07 | Pq Corporation | Stable zeolite of low unit cell constant and method of making same |
US5234876A (en) * | 1992-10-20 | 1993-08-10 | Corning Incorporated | Thermally stable chromium-exchanged zeolites and method of making same |
US5435987A (en) * | 1993-07-22 | 1995-07-25 | Pq Corporation | Process for preparing ammonium zeolites of low alkali metal content |
US6123831A (en) * | 1998-05-28 | 2000-09-26 | Institut Francais Du Petrole | Catalyst comprising a zeolite selected from the group formed by zeolites NU-85, NU-86 and NU-87, an element from group VB and its use in the hydroconversion of hydrocarbon petroleum charges |
US6251261B1 (en) * | 1998-06-25 | 2001-06-26 | Institut Francais Du Petrole | Catalyst that comprises a clay and an element of group VB, and its use in hydrocraking of petroleum feedstocks that contain hydrocarbon |
US6136291A (en) * | 1998-10-08 | 2000-10-24 | Mobile Oil Corporation | Faujasite zeolitic materials |
US20020160911A1 (en) * | 2001-01-15 | 2002-10-31 | Institut Francais Du Petrole | Catalyst that comprises a silica-alumina and its use in hydrocracking of hydrocarbon feedstocks |
US20030173256A1 (en) * | 2001-06-20 | 2003-09-18 | Takashi Fujikawa | Catalyst for hydrogenation treatment of gas oil and method for preparation thereof, and process for hydrogenation treatment of gas oil |
US20040064008A1 (en) * | 2002-09-30 | 2004-04-01 | Torsten Maurer | Molecular sieve catalyst composition |
US20040141911A1 (en) * | 2002-11-27 | 2004-07-22 | Pq Corporation, Inc. | High surface zeolites and methods for preparation and use thereof |
US20040152587A1 (en) * | 2002-11-27 | 2004-08-05 | Creyghton Edward Julius | Hydrocracking catalyst |
US7192900B2 (en) * | 2002-11-27 | 2007-03-20 | Shell Oil Company | Hydrocracking catalyst |
Cited By (44)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070084751A1 (en) * | 2003-12-31 | 2007-04-19 | Li Wang | Two Stage Hydrocracking Process Using Beta Zeolite for Production of LPG and Distillate Hydrocarbons |
US7462276B2 (en) | 2003-12-31 | 2008-12-09 | Uop Llc | Two stage hydrocracking process using beta zeolite for production of LPG and distillate hydrocarbons |
US7507844B2 (en) * | 2005-05-09 | 2009-03-24 | Sd Lizenzverwertungsgesellschaft Mbh & Co. Kg | Nanometer scale restructuring of alumina carrier surface and catalysts for the production of alkene oxides |
US20060252643A1 (en) * | 2005-05-09 | 2006-11-09 | Scientific Design Company, Inc. | Nanometer scale restructuring of alumina carrier surface and catalysts for the production of alkene oxides |
US20070102322A1 (en) * | 2005-11-04 | 2007-05-10 | Li Wang | Hydrocracking catalyst containing beta and Y zeolites, and process for its use to make jet fuel or distillate |
US20070102321A1 (en) * | 2005-11-04 | 2007-05-10 | Li Wang | Hydrocracking catalyst containing beta and Y zeolites, and process for its use to produce naphtha |
US7585405B2 (en) | 2005-11-04 | 2009-09-08 | Uop Llc | Hydrocracking catalyst containing beta and Y zeolites, and process for its use to make jet fuel or distillate |
US7510645B2 (en) | 2005-11-04 | 2009-03-31 | Uop Llc | Hydrocracking catalyst containing beta and Y zeolites, and process for its use to produce naphtha |
US7737074B2 (en) * | 2006-06-20 | 2010-06-15 | Shell Oil Company | Sulfur tolerant noble metal containing aromatics hydrogenation catalyst and a method of making and using such catalyst |
US20080027253A1 (en) * | 2006-06-20 | 2008-01-31 | Smegal John A | Sulfur tolerant noble metal containing aromatics hydrogenation catalyst and a method of making and using such catalyst |
US20080011647A1 (en) * | 2006-07-17 | 2008-01-17 | Li Wang | Hydrocracking Catalyst Containing Beta and Y Zeolites, and Process for its use to make Distillate |
US20080011648A1 (en) * | 2006-07-17 | 2008-01-17 | Li Wang | Hydrocracking Catalyst Containing Beta and Y Zeolites, and Process for its use to make Distillate |
US20080011649A1 (en) * | 2006-07-17 | 2008-01-17 | Li Wang | Hydrocracking Catalyst Containing Beta and Y Zeolites, and Process for its use to make Distillate |
US8772196B2 (en) | 2007-08-27 | 2014-07-08 | Shell Oil Company | Aromatics hydrogenation catalyst and a method of making and using such catalyst |
WO2009029579A1 (en) * | 2007-08-27 | 2009-03-05 | Shell Oil Company | An aromatics hydrogenation catalyst and a method of making and using such catalyst |
US20090062582A1 (en) * | 2007-08-27 | 2009-03-05 | Ackerman Russell Craig | Aromatics hydrogenation catalyst and a method of making and using such catalyst |
RU2469789C2 (en) * | 2007-08-27 | 2012-12-20 | Шелл Интернэшнл Рисерч Маатсхаппий Б.В. | Catalyst of aromatic hydrocarbons hydration and method of such catalyst obtaining and application |
US20090230026A1 (en) * | 2008-02-21 | 2009-09-17 | Saudi Arabian Oil Company | Catalyst To Attain Low Sulfur Gasoline |
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US9321036B2 (en) * | 2012-07-26 | 2016-04-26 | Samsung Electronics Co., Ltd. | CO2 reforming catalyst, method of preparing the same, and method of reforming CO2 |
US20150231609A1 (en) * | 2012-07-26 | 2015-08-20 | Samsung Electronics Co., Ltd. | Co2 reforming catalyst, method of preparing the same, and method of reforming co2 |
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US20150306585A1 (en) * | 2012-11-14 | 2015-10-29 | Universida Nacional Autónoma De México | Supported catalysts for producing ultra-low sulphur fuel oils |
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WO2015088602A1 (en) * | 2013-12-09 | 2015-06-18 | Chevron U.S.A. Inc. | Method for making a middle distillate |
US20160090537A1 (en) * | 2014-05-08 | 2016-03-31 | Reliance Industries Limited | Catalyst assisted conversion of biomass to bio-oil |
US10138428B2 (en) * | 2014-05-08 | 2018-11-27 | Reliance Industries Limited | Catalyst assisted conversion of biomass to bio-oil |
US20160121312A1 (en) * | 2014-10-31 | 2016-05-05 | Chevron U.S.A. Inc. | Middle distillate hydrocracking catalyst containing highly nanoporous stabilized y zeolite |
CN106999918A (en) * | 2014-10-31 | 2017-08-01 | 雪佛龙美国公司 | The midbarrel hydrocracking catalyst of stable Y zeolites containing high nano-pore |
US20160214094A1 (en) * | 2015-01-22 | 2016-07-28 | Chevron U.S.A. Inc. | Noble metal zeolite catalyst for second-stage hydrocracking |
US10183282B2 (en) * | 2015-01-22 | 2019-01-22 | Chevron U.S.A. Inc. | Noble metal zeolite catalyst for second-stage hydrocracking |
US10183286B2 (en) * | 2015-08-11 | 2019-01-22 | Chevron U.S.A. Inc. | Noble metal zeolite catalyst for second-stage hydrocracking to make middle distillate |
US20170043330A1 (en) * | 2015-08-11 | 2017-02-16 | Chevron U.S.A. Inc. | Noble metal zeolite catalyst for second-stage hydrocracking to make middle distillate |
WO2019089167A1 (en) * | 2017-10-30 | 2019-05-09 | Saudi Arabian Oil Company | Catalyst loading method to disperse heat in hydroconversion reactor |
Also Published As
Publication number | Publication date |
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RU2366505C2 (en) | 2009-09-10 |
RU2006134729A (en) | 2008-04-10 |
ZA200606951B (en) | 2008-04-30 |
JP2007526119A (en) | 2007-09-13 |
CN1938088A (en) | 2007-03-28 |
UA91016C2 (en) | 2010-06-25 |
CN100428995C (en) | 2008-10-29 |
WO2005084799A1 (en) | 2005-09-15 |
CA2558172A1 (en) | 2005-09-15 |
KR20070004776A (en) | 2007-01-09 |
BRPI0508276A (en) | 2007-08-07 |
EP1735094A1 (en) | 2006-12-27 |
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