JP2020515384A - 排ガスを処理するための触媒、排気システム及び方法 - Google Patents
排ガスを処理するための触媒、排気システム及び方法 Download PDFInfo
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- JP2020515384A JP2020515384A JP2019552596A JP2019552596A JP2020515384A JP 2020515384 A JP2020515384 A JP 2020515384A JP 2019552596 A JP2019552596 A JP 2019552596A JP 2019552596 A JP2019552596 A JP 2019552596A JP 2020515384 A JP2020515384 A JP 2020515384A
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- Prior art keywords
- oxide
- catalyst
- atomic
- exhaust gas
- composition
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- 239000003054 catalyst Substances 0.000 title claims abstract description 104
- 238000000034 method Methods 0.000 title claims description 25
- 239000000203 mixture Substances 0.000 claims abstract description 63
- 239000007789 gas Substances 0.000 claims abstract description 47
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 34
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000010936 titanium Substances 0.000 claims abstract description 25
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 22
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 18
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 17
- 229910052751 metal Inorganic materials 0.000 claims abstract description 16
- 239000002184 metal Substances 0.000 claims abstract description 16
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 15
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 13
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000010937 tungsten Substances 0.000 claims abstract description 8
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000011733 molybdenum Substances 0.000 claims abstract description 7
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 7
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000011574 phosphorus Substances 0.000 claims abstract description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical group N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 14
- 239000003245 coal Substances 0.000 claims description 12
- GNTDGMZSJNCJKK-UHFFFAOYSA-N divanadium pentaoxide Chemical compound O=[V](=O)O[V](=O)=O GNTDGMZSJNCJKK-UHFFFAOYSA-N 0.000 claims description 11
- 238000002485 combustion reaction Methods 0.000 claims description 8
- 229910021529 ammonia Inorganic materials 0.000 claims description 7
- 239000002243 precursor Substances 0.000 claims description 7
- 239000003208 petroleum Substances 0.000 claims description 5
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 claims description 4
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 claims description 4
- 239000001099 ammonium carbonate Substances 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 claims description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 2
- 235000012538 ammonium bicarbonate Nutrition 0.000 claims description 2
- BVCZEBOGSOYJJT-UHFFFAOYSA-N ammonium carbamate Chemical compound [NH4+].NC([O-])=O BVCZEBOGSOYJJT-UHFFFAOYSA-N 0.000 claims description 2
- 235000012501 ammonium carbonate Nutrition 0.000 claims description 2
- VZTDIZULWFCMLS-UHFFFAOYSA-N ammonium formate Chemical compound [NH4+].[O-]C=O VZTDIZULWFCMLS-UHFFFAOYSA-N 0.000 claims description 2
- 239000004202 carbamide Substances 0.000 claims description 2
- KXDHJXZQYSOELW-UHFFFAOYSA-N carbonic acid monoamide Natural products NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 claims description 2
- 229910000474 mercury oxide Inorganic materials 0.000 claims description 2
- UKWHYYKOEPRTIC-UHFFFAOYSA-N mercury(ii) oxide Chemical compound [Hg]=O UKWHYYKOEPRTIC-UHFFFAOYSA-N 0.000 claims description 2
- 239000002699 waste material Substances 0.000 claims description 2
- 239000004568 cement Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 abstract 1
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 65
- 230000010718 Oxidation Activity Effects 0.000 description 19
- 239000000758 substrate Substances 0.000 description 17
- 230000003647 oxidation Effects 0.000 description 16
- 238000007254 oxidation reaction Methods 0.000 description 16
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 14
- 150000001875 compounds Chemical class 0.000 description 13
- 238000006243 chemical reaction Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 12
- 239000000463 material Substances 0.000 description 10
- 238000001354 calcination Methods 0.000 description 9
- 239000010935 stainless steel Substances 0.000 description 8
- 229910001220 stainless steel Inorganic materials 0.000 description 8
- 238000012360 testing method Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 7
- 229910010413 TiO 2 Inorganic materials 0.000 description 7
- 239000002994 raw material Substances 0.000 description 7
- 229910052717 sulfur Inorganic materials 0.000 description 7
- 239000011593 sulfur Substances 0.000 description 7
- 229910002089 NOx Inorganic materials 0.000 description 6
- UNTBPXHCXVWYOI-UHFFFAOYSA-O azanium;oxido(dioxo)vanadium Chemical compound [NH4+].[O-][V](=O)=O UNTBPXHCXVWYOI-UHFFFAOYSA-O 0.000 description 6
- 229910052753 mercury Inorganic materials 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 6
- 239000011230 binding agent Substances 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 5
- 239000004927 clay Substances 0.000 description 5
- 239000000835 fiber Substances 0.000 description 5
- 229910001935 vanadium oxide Inorganic materials 0.000 description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- XHCLAFWTIXFWPH-UHFFFAOYSA-N [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] XHCLAFWTIXFWPH-UHFFFAOYSA-N 0.000 description 4
- QGAVSDVURUSLQK-UHFFFAOYSA-N ammonium heptamolybdate Chemical compound N.N.N.N.N.N.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.[Mo].[Mo].[Mo].[Mo].[Mo].[Mo].[Mo] QGAVSDVURUSLQK-UHFFFAOYSA-N 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 description 3
- -1 ammonium heptamolybdate tetrahydrate Chemical class 0.000 description 3
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000001590 oxidative effect Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000006722 reduction reaction Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 2
- 108700018263 Brassica oleracea SCR Proteins 0.000 description 2
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 2
- 229910021541 Vanadium(III) oxide Inorganic materials 0.000 description 2
- 238000003916 acid precipitation Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- APUPEJJSWDHEBO-UHFFFAOYSA-P ammonium molybdate Chemical compound [NH4+].[NH4+].[O-][Mo]([O-])(=O)=O APUPEJJSWDHEBO-UHFFFAOYSA-P 0.000 description 2
- 239000011609 ammonium molybdate Substances 0.000 description 2
- 229940010552 ammonium molybdate Drugs 0.000 description 2
- 235000018660 ammonium molybdate Nutrition 0.000 description 2
- 150000003863 ammonium salts Chemical class 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000002530 cold vapour atomic fluorescence spectroscopy Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 229940100892 mercury compound Drugs 0.000 description 2
- 150000002731 mercury compounds Chemical class 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 description 2
- 235000011007 phosphoric acid Nutrition 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- CMPGARWFYBADJI-UHFFFAOYSA-L tungstic acid Chemical compound O[W](O)(=O)=O CMPGARWFYBADJI-UHFFFAOYSA-L 0.000 description 2
- IBYSTTGVDIFUAY-UHFFFAOYSA-N vanadium monoxide Chemical compound [V]=O IBYSTTGVDIFUAY-UHFFFAOYSA-N 0.000 description 2
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 description 1
- 229910000604 Ferrochrome Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910021542 Vanadium(IV) oxide Inorganic materials 0.000 description 1
- QUEDYRXQWSDKKG-UHFFFAOYSA-M [O-2].[O-2].[V+5].[OH-] Chemical compound [O-2].[O-2].[V+5].[OH-] QUEDYRXQWSDKKG-UHFFFAOYSA-M 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 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
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 239000001166 ammonium sulphate Substances 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000002802 bituminous coal Substances 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- BWKCCRPHMILRGD-UHFFFAOYSA-N chloro hypochlorite;tungsten Chemical compound [W].ClOCl BWKCCRPHMILRGD-UHFFFAOYSA-N 0.000 description 1
- RCTYPNKXASFOBE-UHFFFAOYSA-M chloromercury Chemical compound [Hg]Cl RCTYPNKXASFOBE-UHFFFAOYSA-M 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- XAYGUHUYDMLJJV-UHFFFAOYSA-Z decaazanium;dioxido(dioxo)tungsten;hydron;trioxotungsten Chemical compound [H+].[H+].[NH4+].[NH4+].[NH4+].[NH4+].[NH4+].[NH4+].[NH4+].[NH4+].[NH4+].[NH4+].O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.[O-][W]([O-])(=O)=O.[O-][W]([O-])(=O)=O.[O-][W]([O-])(=O)=O.[O-][W]([O-])(=O)=O.[O-][W]([O-])(=O)=O.[O-][W]([O-])(=O)=O XAYGUHUYDMLJJV-UHFFFAOYSA-Z 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 230000005802 health problem Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229910052809 inorganic oxide Inorganic materials 0.000 description 1
- 150000004715 keto acids Chemical class 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- YJEJUIVHAMABCA-UHFFFAOYSA-J molybdenum(4+);oxalate Chemical compound [Mo+4].[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O YJEJUIVHAMABCA-UHFFFAOYSA-J 0.000 description 1
- TXCOQXKFOPSCPZ-UHFFFAOYSA-J molybdenum(4+);tetraacetate Chemical compound [Mo+4].CC([O-])=O.CC([O-])=O.CC([O-])=O.CC([O-])=O TXCOQXKFOPSCPZ-UHFFFAOYSA-J 0.000 description 1
- PDKHNCYLMVRIFV-UHFFFAOYSA-H molybdenum;hexachloride Chemical compound [Cl-].[Cl-].[Cl-].[Cl-].[Cl-].[Cl-].[Mo] PDKHNCYLMVRIFV-UHFFFAOYSA-H 0.000 description 1
- VLAPMBHFAWRUQP-UHFFFAOYSA-L molybdic acid Chemical class O[Mo](O)(=O)=O VLAPMBHFAWRUQP-UHFFFAOYSA-L 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 239000001272 nitrous oxide Substances 0.000 description 1
- KFAFTZQGYMGWLU-UHFFFAOYSA-N oxo(oxovanadiooxy)vanadium Chemical compound O=[V]O[V]=O KFAFTZQGYMGWLU-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical group [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 1
- DCKVFVYPWDKYDN-UHFFFAOYSA-L oxygen(2-);titanium(4+);sulfate Chemical compound [O-2].[Ti+4].[O-]S([O-])(=O)=O DCKVFVYPWDKYDN-UHFFFAOYSA-L 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- YOUIDGQAIILFBW-UHFFFAOYSA-J tetrachlorotungsten Chemical compound Cl[W](Cl)(Cl)Cl YOUIDGQAIILFBW-UHFFFAOYSA-J 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 229910000349 titanium oxysulfate Inorganic materials 0.000 description 1
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 1
- YONPGGFAJWQGJC-UHFFFAOYSA-K titanium(iii) chloride Chemical compound Cl[Ti](Cl)Cl YONPGGFAJWQGJC-UHFFFAOYSA-K 0.000 description 1
- 150000003682 vanadium compounds Chemical class 0.000 description 1
- GRUMUEUJTSXQOI-UHFFFAOYSA-N vanadium dioxide Chemical compound O=[V]=O GRUMUEUJTSXQOI-UHFFFAOYSA-N 0.000 description 1
- JBIQAPKSNFTACH-UHFFFAOYSA-K vanadium oxytrichloride Chemical compound Cl[V](Cl)(Cl)=O JBIQAPKSNFTACH-UHFFFAOYSA-K 0.000 description 1
- UUUGYDOQQLOJQA-UHFFFAOYSA-L vanadyl sulfate Chemical compound [V+2]=O.[O-]S([O-])(=O)=O UUUGYDOQQLOJQA-UHFFFAOYSA-L 0.000 description 1
- 238000007704 wet chemistry method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
-
- 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
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/14—Phosphorus; Compounds thereof
- B01J27/186—Phosphorus; Compounds thereof with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J27/195—Phosphorus; Compounds thereof with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium with vanadium, niobium or tantalum
- B01J27/198—Vanadium
- B01J27/199—Vanadium with chromium, molybdenum, tungsten or polonium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1431—Pretreatment by other processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8621—Removing nitrogen compounds
- B01D53/8625—Nitrogen oxides
- B01D53/8628—Processes characterised by a specific catalyst
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8665—Removing heavy metals or compounds thereof, e.g. mercury
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
- B01D53/9404—Removing only nitrogen compounds
- B01D53/9409—Nitrogen oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
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Abstract
Description
(i)モリブデン(Mo)の酸化物、及び任意選択的にタングステン(Wの酸化物)、並びに
(ii)バナジウム(V)の酸化物、並びに
(iii)チタン(Ti)の酸化物、並びに
(iv)リン(P)の酸化物、
を含有する組成物を含み、
ここで、組成物中の合計金属原子に対して、該組成物は、
(i)2原子%未満の量のMo、及び任意選択的に9原子%までのW、
(ii)2.5〜12原子%のV、
(iii)85〜96原子%のTi、
を含み、
組成物は、(iv)Pを、Mo、W及びVの原子の合計に対して1:2から3:2の原子比で含む。表現されたこれらの値が合計で100%でなければならないことは、理解されるだろう。
排ガスの流れを、本明細書に記載の触媒と、窒素還元剤の存在下で接触させることにより、処理された排ガスをもたらすことを含む。
以下で本発明を具体的に、以下の非限定的な実施例により、詳細に説明する。
TiO2上に、1.2重量%のV2O5と、2.7重量%のMoO3とを含む触媒を、チタニアと、メタバナジン酸アンモニウム及びヘプタモリブデン酸アンモニウムと、粘土、繊維及び有機結合剤とを組み合わせることによって調製し、それから混錬してペーストにした。このペーストを、ステンレス鋼メッシュ上に厚さ0.8mmで積層させ、か焼してプレート型触媒を形成した。
米国特許第8535628号に従って、TiO2上に、8.1重量%のV2O5と、6.4重量%のMoO3と、9.4重量%のP2O5とを含む触媒を、チタニアとメタバナジン酸アンモニウム、ヘプタモリブデン酸アンモニウム及びリン酸水素アンモニウムと、粘土、繊維及び有機結合剤とを組み合わせることによって調製し、それから混錬してペーストにした。結晶性のヘプタモリブデン酸アンモニウム四水和物をペーストに直接加え、この混合物をさらに混練した。このペーストを、ステンレス鋼メッシュ上に厚さ0.8mmで積層させ、か焼してプレート型触媒を形成した。
TiO2上に、8.1重量%のV2O5と、2.3重量%のMoO3と、6重量%のP2O5とを含む触媒を、チタニアとメタバナジン酸アンモニウム、ヘプタモリブデン酸アンモニウム及びリン酸水素アンモニウムと、粘土、繊維及び有機結合剤とを組み合わせることによって調製し、それから混錬してペーストにした。結晶性のヘプタモリブデン酸アンモニウム四水和物をペーストに直接加え、この混合物をさらに混練した。このペーストを、ステンレス鋼メッシュ上に厚さ0.8mmで積層させ、か焼してプレート型触媒を形成した。
TiO2上に、3.1重量%のV2O5と、2.3重量%のMoO3と、4.9重量%のP2O5とを含む触媒を、チタニアとメタバナジン酸アンモニウム、ヘプタモリブデン酸アンモニウム及びリン酸水素アンモニウムと、粘土、繊維及び有機結合剤とを組み合わせることによって調製し、それから混錬してペーストにした。結晶性のヘプタモリブデン酸アンモニウム四水和物をペーストに直接加え、この混合物をさらに混練した。このペーストを、ステンレス鋼メッシュ上に厚さ0.8mmで積層させ、か焼してプレート型触媒を形成した。
各触媒プレートをまず、25mm×400mmの寸法のストリップ状に切った。それから、これらのストリップのうち4つを、反応管に垂直に設置し、合成ガス混合物を、反応管に通過させた。NOx、SOx及びHg試験のための合成ガス混合物は、各試験について異なっており、これらの合成ガス混合物の組成及び条件は、下記表に記載されている。
反応器への入口のガスの組成、及び反応器からの出口のガスの組成を、複数の化合物を同時に分析するオンラインFTIR分光法によって決定した。装置内部での水分の凝縮及び塩の形成を避けるために、FTIR試料セルの温度を約230℃に保持した。Hg濃度は、冷蒸気原子蛍光分析(CVAFS)を利用する市販の連続排ガス監視システム(CEM)を用いて、反応器の入口及び出口双方で分析した。Hg変換は、入口及び出口での単体のHgの濃度を用いて算出した。
NOx除去試験のパーセントは、化学発光法NOx分析器により、触媒層の入口及び出口でNOx濃度を測定することによって決定した。
SO2のパーセントは、湿式化学法により触媒層の出口でSO3濃度を測定することによって、決定した。
Claims (9)
- SO2、NOx及び単体の水銀を含む排ガスを窒素還元剤の存在下で処理するための触媒であって、該触媒は、
(i)モリブデン(Mo)の酸化物、及び任意選択的にタングステン(W)の酸化物、並びに
(ii)バナジウム(V)の酸化物、並びに
(iii)チタン(Ti)の酸化物、並びに
(iv)リン(P)の酸化物、
を含有する組成物を含み、
ここで、組成物中の合計金属原子に対して、該組成物は、
(i)2原子%未満の量のMo、及び任意選択的に9原子%までのW、
(ii)2.5〜12原子%のV、
(iii)85〜96原子%のTi、
を含み、
ここで組成物は、(iv)Pを、Mo、W及びVの原子の合計に対して1:2から3:2の原子比で含む、触媒。 - 組成物が、
(i)0.5〜1.95原子%のMo、好ましくは1.75〜1.95原子%のMo、及び/若しくはW無し、並びに/又は
(ii)3〜11原子%のV、並びに/又は
(iii)87〜95原子%のTi;
を含み、かつ/又は
組成物は、(iv)Pを、Mo、W及びVの原子の合計に対して9:10から7:5の原子比で含む、請求項1に記載の触媒。 - 組成物が、Moの酸化物、Vの酸化物、Tiの酸化物及びPの酸化物、並びに任意選択的にWの酸化物から成る、請求項1又は2に記載の触媒。
- プレート触媒である、請求項1から3のいずれか一項に記載の触媒。
- SO2、NOx及び単体の水銀を含む排ガスを処理するための方法であって、
排ガスの流れを、請求項1から4のいずれか一項に記載の触媒と、窒素還元剤の存在下で接触させることにより、処理された排ガスをもたらすこと、
を含む、方法。 - 窒素還元剤が、アンモニア若しくはヒドラジンであるか、又は尿素((NH2)2CO)、炭酸アンモニウム、カルバミン酸アンモニウム、炭酸水素アンモニウム、及びギ酸アンモニウムからなる群から選択されるアンモニア前駆体であるか、又はこれらのうち二以上の混合物である、請求項5に記載の方法。
- 請求項5又は6に記載の方法を行うための燃焼源のための排気システムであって、流れている排ガスを運ぶための導管と、窒素還元剤供給源と、排ガスの流路に配置された請求項1から4のいずれか一項に記載の触媒と、触媒の上流を流れる排ガスへと窒素還元剤を計量供給するための手段とを含む、排気システム。
- 処理された排ガスから酸化水銀を回収するための湿式又は乾式スクラバーをさらに含む、請求項7に記載の排気システム。
- 燃焼源が、炉又はボイラーであり、好ましくは、石炭若しくは石油発電所の炉又はボイラー、セメントプラント若しくは廃棄物焼却炉の炉又はボイラーである、請求項7又は8に記載の排気システム。
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US8535628B2 (en) * | 2010-03-22 | 2013-09-17 | Babcock-Hitachi Kabushiki Kaisha | Exhaust gas purifying catalyst |
US20110250114A1 (en) * | 2010-04-13 | 2011-10-13 | Millennium Inorganic Chemicals, Inc. | Vanadia-Based DeNOx Catalysts and Catalyst Supports |
JP5604235B2 (ja) * | 2010-09-07 | 2014-10-08 | バブコック日立株式会社 | 排ガス脱硝触媒およびその製造方法 |
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2017
- 2017-09-27 GB GBGB1715663.9A patent/GB201715663D0/en not_active Ceased
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2018
- 2018-03-28 US US15/937,902 patent/US10882031B2/en active Active
- 2018-03-29 CN CN201880021800.8A patent/CN110461441A/zh active Pending
- 2018-03-29 EP EP18715937.1A patent/EP3600615A1/en not_active Withdrawn
- 2018-03-29 GB GB1805172.2A patent/GB2561087B/en not_active Expired - Fee Related
- 2018-03-29 WO PCT/GB2018/050867 patent/WO2018178710A1/en active Application Filing
- 2018-03-29 JP JP2019552596A patent/JP2020515384A/ja not_active Ceased
- 2018-03-29 KR KR1020197031697A patent/KR20190135024A/ko not_active Application Discontinuation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2009031234A1 (ja) * | 2007-09-07 | 2009-03-12 | Babcock-Hitachi Kabushiki Kaisha | 排ガス浄化用触媒 |
JP2009202084A (ja) * | 2008-02-27 | 2009-09-10 | Mitsubishi Heavy Ind Ltd | 排ガス処理触媒 |
WO2009119639A1 (ja) * | 2008-03-25 | 2009-10-01 | バブコック日立株式会社 | 鉄化合物の影響を抑制した排ガス浄化触媒 |
JP2011121036A (ja) * | 2009-12-14 | 2011-06-23 | Babcock Hitachi Kk | 燃焼排ガスの水銀除去方法及び燃焼排ガス浄化装置。 |
JP2013052371A (ja) * | 2011-09-06 | 2013-03-21 | Babcock Hitachi Kk | 脱硝方法 |
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US10882031B2 (en) | 2021-01-05 |
US20180280943A1 (en) | 2018-10-04 |
GB201715663D0 (en) | 2017-11-08 |
CN110461441A (zh) | 2019-11-15 |
KR20190135024A (ko) | 2019-12-05 |
GB201805172D0 (en) | 2018-05-16 |
GB2561087A (en) | 2018-10-03 |
GB2561087B (en) | 2021-08-11 |
EP3600615A1 (en) | 2020-02-05 |
WO2018178710A1 (en) | 2018-10-04 |
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