CN101069000A - 改进的触媒滤烟器 - Google Patents
改进的触媒滤烟器 Download PDFInfo
- Publication number
- CN101069000A CN101069000A CNA2005800251831A CN200580025183A CN101069000A CN 101069000 A CN101069000 A CN 101069000A CN A2005800251831 A CNA2005800251831 A CN A2005800251831A CN 200580025183 A CN200580025183 A CN 200580025183A CN 101069000 A CN101069000 A CN 101069000A
- Authority
- CN
- China
- Prior art keywords
- alkali
- soot filter
- catalyzed soot
- combination
- porous ceramics
- 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.)
- Granted
Links
- 239000004071 soot Substances 0.000 title claims abstract description 47
- 239000000919 ceramic Substances 0.000 claims abstract description 69
- 239000003513 alkali Substances 0.000 claims abstract description 63
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical group [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims abstract description 19
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052863 mullite Inorganic materials 0.000 claims abstract description 18
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 15
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 14
- 230000003197 catalytic effect Effects 0.000 claims abstract description 13
- 150000001875 compounds Chemical class 0.000 claims abstract description 13
- 239000000075 oxide glass Substances 0.000 claims abstract description 10
- 150000004645 aluminates Chemical class 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 29
- 239000000084 colloidal system Substances 0.000 claims description 14
- 229910052792 caesium Inorganic materials 0.000 claims description 13
- 229910052700 potassium Inorganic materials 0.000 claims description 12
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 11
- 229910000323 aluminium silicate Inorganic materials 0.000 claims description 10
- 239000011521 glass Substances 0.000 claims description 10
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 7
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 7
- 229910052708 sodium Inorganic materials 0.000 claims description 5
- -1 steinheilite Chemical compound 0.000 claims description 4
- 229910052910 alkali metal silicate Inorganic materials 0.000 claims description 3
- 239000004927 clay Substances 0.000 claims description 2
- 230000004927 fusion Effects 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 229910052878 cordierite Inorganic materials 0.000 abstract 1
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 description 21
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 18
- 238000006555 catalytic reaction Methods 0.000 description 16
- 239000003245 coal Substances 0.000 description 11
- 239000002245 particle Substances 0.000 description 11
- 238000002485 combustion reaction Methods 0.000 description 10
- 239000000779 smoke Substances 0.000 description 10
- 238000012360 testing method Methods 0.000 description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 7
- 229910000510 noble metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 229910000272 alkali metal oxide Inorganic materials 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 238000000151 deposition Methods 0.000 description 4
- 230000008021 deposition Effects 0.000 description 4
- PGZIKUPSQINGKT-UHFFFAOYSA-N dialuminum;dioxido(oxo)silane Chemical compound [Al+3].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O PGZIKUPSQINGKT-UHFFFAOYSA-N 0.000 description 4
- 239000003973 paint Substances 0.000 description 4
- 230000037452 priming Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000010953 base metal Substances 0.000 description 3
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 description 3
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229910044991 metal oxide Inorganic materials 0.000 description 3
- 239000003863 metallic catalyst Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000000643 oven drying Methods 0.000 description 3
- 239000010970 precious metal Substances 0.000 description 3
- 229910001404 rare earth metal oxide Inorganic materials 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 2
- 229910052684 Cerium Inorganic materials 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 239000004111 Potassium silicate Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052788 barium Inorganic materials 0.000 description 2
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 2
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Chemical compound [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 description 2
- HUCVOHYBFXVBRW-UHFFFAOYSA-M caesium hydroxide Chemical compound [OH-].[Cs+] HUCVOHYBFXVBRW-UHFFFAOYSA-M 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 235000019241 carbon black Nutrition 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 229910052746 lanthanum Inorganic materials 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical group [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 description 2
- 229910052913 potassium silicate Inorganic materials 0.000 description 2
- 235000019353 potassium silicate Nutrition 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- RLQWHDODQVOVKU-UHFFFAOYSA-N tetrapotassium;silicate Chemical compound [K+].[K+].[K+].[K+].[O-][Si]([O-])([O-])[O-] RLQWHDODQVOVKU-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910052726 zirconium Inorganic materials 0.000 description 2
- 229910001928 zirconium oxide Inorganic materials 0.000 description 2
- 229910017083 AlN Inorganic materials 0.000 description 1
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 description 1
- 229910018516 Al—O Inorganic materials 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000502 Li-aluminosilicate Inorganic materials 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 1
- 229910018557 Si O Inorganic materials 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- CNLWCVNCHLKFHK-UHFFFAOYSA-N aluminum;lithium;dioxido(oxo)silane Chemical compound [Li+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O CNLWCVNCHLKFHK-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- ZMIGMASIKSOYAM-UHFFFAOYSA-N cerium Chemical compound [Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce] ZMIGMASIKSOYAM-UHFFFAOYSA-N 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000002003 electron diffraction Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- CKFGINPQOCXMAZ-UHFFFAOYSA-N methanediol Chemical compound OCO CKFGINPQOCXMAZ-UHFFFAOYSA-N 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 229910052702 rhenium Inorganic materials 0.000 description 1
- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 229910052701 rubidium Inorganic materials 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 229910052706 scandium Inorganic materials 0.000 description 1
- SIXSYDAISGFNSX-UHFFFAOYSA-N scandium atom Chemical compound [Sc] SIXSYDAISGFNSX-UHFFFAOYSA-N 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Inorganic materials [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910052917 strontium silicate Inorganic materials 0.000 description 1
- QSQXISIULMTHLV-UHFFFAOYSA-N strontium;dioxido(oxo)silane Chemical compound [Sr+2].[O-][Si]([O-])=O QSQXISIULMTHLV-UHFFFAOYSA-N 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- GPRLSGONYQIRFK-MNYXATJNSA-N triton Chemical compound [3H+] GPRLSGONYQIRFK-MNYXATJNSA-N 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052644 β-spodumene Inorganic materials 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/033—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices
- F01N3/035—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors, e.g. catalysed diesel particulate filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
-
- 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
- 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
- B01D53/944—Simultaneously removing carbon monoxide, hydrocarbons or carbon making use of oxidation catalysts
-
- 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
- B01J23/02—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the alkali- or alkaline earth metals or beryllium
- B01J23/04—Alkali metals
-
- 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
- B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
- B01J35/56—Foraminous structures having flow-through passages or channels, e.g. grids or three-dimensional monoliths
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5076—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with masses bonded by inorganic cements
- C04B41/5089—Silica sols, alkyl, ammonium or alkali metal silicate cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/85—Coating or impregnation with inorganic materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Abstract
本发明涉及一种改进的触媒滤烟器，其包括在多孔陶瓷的至少一部分上具有无定形催化相的多孔陶瓷，所述无定形催化相包括含有其中具有Si、Al或其结合的氧化物玻璃的碱。通过使例如莫来石、碳化硅或堇青石的多孔陶瓷与含有硅酸盐、铝酸盐或铝硅酸盐的化合物的碱接触，然后加热至足以形成使多孔陶瓷的至少一部分的无定形催化相融合的温度，以形成所述改进的触媒滤烟器。
Description
技术领域
本发明涉及一种改进的触媒微粒滤器。
背景技术
柴油机，由于其操作的方式，会释放出煤烟颗粒或非常细微的冷凝物液滴或这两种的凝聚物(微粒)以及通常有害的汽油机排放物(即HC和CO)。这些“微粒”(此处的柴油机煤烟)富含其中一些可以致癌的稠合多核烃。
由于有害的柴油机煤烟对健康所带来的危害与柴油机所提供的更高燃料效率的需求的矛盾，已经制定出相应规定来约束柴油机煤烟允许排放的数量。为了达到这些要求，已经使用滤烟器。当使用这样的滤器时，必须通过燃尽煤烟来定期再生该滤器。但是因为柴油机煤烟燃烧的温度明显高于柴油机正常操作的温度，已提议使用一些催化剂来降低柴油机煤烟的燃烧温度。
通常，使用含有碱或碱性氧化物的催化剂来显著降低柴油机煤烟的燃烧温度，其描述于，例如，JP 2001-17449；WO 03/011437；US2002/0132727和US 2002/0197191。不幸地是，这些催化剂是挥发性的并且对滤器具有破坏性，以致于具有不实际的短寿命。此外，这些催化剂还需要相当数量的贵金属催化剂以减少与柴油机煤烟一起释放的HC和CO气体。
其它氧化剂，如稀土氧化物(如US 4,515,758；US 2002/0197191；US2002/0044897；US 2003/0124037；WO 01/02083)和贱金属氧化物也可以用于与贵金属催化剂结合以试图降低柴油机煤烟燃烧温度同时促进HC和CO的释放。不幸的是，这些催化剂也需要相当数量的昂贵的贵金属催化剂和/或稀土氧化物。
因此，理想地提供一种用于柴油机颗粒滤器的催化剂，其会避免已知技术的一个或多个问题，例如上述问题中的一个。特别地，理想地提供一种消除已知技术中所需要的昂贵的稀土氧化物和贵金属催化剂的数量的催化剂来氧化煤烟，同时达到长寿命。
发明内容
本发明的第一方面是一种触媒滤烟器，其包括在多孔陶瓷的至少一部分上具有无定形催化相的多孔陶瓷，所述无定形催化相包括含有其中具有Si、Al或其结合的氧化物玻璃的碱。令人吃惊地，触媒滤烟器显示出良好的煤烟燃烧和长寿命，而没有快速的碱挥发或对多孔陶瓷的化学侵蚀，其与碱氧化物催化剂是相同的。同样地，平衡点温度(即由柴油机颗粒滤器达到的煤烟燃烧率等于滤器中煤烟累积率时的温度)可以与通常的碱氧化物基煤烟催化剂、贵金属催化剂、稀土催化剂及其混合物的温度一样低或更低。
本发明的第二方面是一种形成触媒滤烟器的方法，包括将多孔陶瓷体暴露于含有硅酸盐、铝酸盐、铝硅酸盐或它们的结合的化合物的碱，以使得多孔陶瓷的至少一部分与含有化合物的碱接触，并且将接触的多孔陶瓷加热到足以使包含Si、Al或其结合的氧化物玻璃的碱熔于其中的温度。令人吃惊地，该方法允许将碱加入到玻璃相中，然而例如仅与碱氧化物的接触不能使含有玻璃相的熔融碱加入到多孔陶瓷中。更令人吃惊地，该方法可以改进多孔陶瓷的机械性能，然而仅与碱氧化物的的接触几乎都会对多孔陶瓷具有破坏性。
可以将触媒滤烟器用于其中需要从气流如汽车、火车、卡车或固定发电厂的排放物中去除煤烟的任何应用。触媒滤烟器特别用于从柴油机排放物中去除煤烟。
具体实施方式
本发明是触媒滤烟器，其中煤烟是碳基物质，如上述的柴油机煤烟。该触媒滤烟器包括多孔陶瓷。
该多孔陶瓷体是任何适合的陶瓷，如过滤柴油机煤烟的技术中已知的那些。优选地，多孔陶瓷是在多孔陶瓷的陶瓷的至少一部分表面上具有氧化物晶界相或氧化物相的一种，其中所述相包括Si、Al或它们的结合(如几乎不含此处所述的任何碱的二氧化硅、氧化铝、硅酸盐、铝酸盐或铝硅酸盐)。优选地，陶瓷的整个表面上具有上述相。基本上不含碱表示，例如，多孔陶瓷如莫来石、堇青石或碳化硅具有至多约0.05份每100重量份的没有无定形催化相的多孔陶瓷。
示例性陶瓷包括氧化铝、氧化锆、碳化硅、氮化硅和氮化铝、氧氮化硅和碳氮化硅、莫来石、堇青石、β锂辉石、钛酸铝、硅酸锶铝、硅酸锂铝。优选的多孔陶瓷体包括碳化硅、堇青石和莫来石或它们的结合。碳化硅优选为美国专利No.US 6,669,751B1和WO公开EP1142619A1、WO 2002/070106A1中所述的一个。其它适合的多孔陶瓷描述于WO 2004/011386A1、WO 2004/011124A1、US 2004/0020359A1和WO 2003/051488A1。
莫来石优选是具有针状微结构的莫来石。这种针状陶瓷多孔体的例子包括描述于美国专利Nos.5,194,154；5,173,349；5,198,007；5,098,455；5,340,516；6,596,665和6,306,335；美国专利申请公开2001/0038810；和国际PCT公开WO 03/082773的那些。
通常，多孔陶瓷体具有约30％～85％的孔隙率。优选地，多孔陶瓷体具有至少约40％，更优选至少约45％，，甚至更优选至少约50％，最优选至少约55％至优选最多约80％，更优选最多约75％，最优选最多约70％的孔隙率。
多孔陶瓷体具有在其至少一部分上的催化无定形相。部分表示在多孔陶瓷体上的任何有效量的催化相，使得煤烟平衡温度与类似结合物的单独多孔陶瓷体相比更低。通常，由催化相覆盖多孔陶瓷的至少约10％。优选地，由催化相覆盖至多孔陶瓷体的至少约20％，更优选至少约30％，甚至更优选至少约50％且最优选至少约75％。在一个优选实施方案中，由催化相覆盖多孔陶瓷的整个表面。
在一个优选实施方案中，将至少一部分催化相熔于多孔陶瓷体。所述熔于表示使催化相与多孔陶瓷通过共价键或极性键连接。例如，催化相可以在多孔陶瓷体的陶瓷晶粒上作为晶界无定形相而存在，还可以存在于陶瓷晶界连接处。在这个优选体中，通常使所有催化相熔于多孔陶瓷体的陶瓷晶粒。
该催化相是无定形的。无定形表示没有使用一般分析技术检测到的分子结构。也就是说，可以有一些非常小的有序结构，但由于这些有序结构的尺寸，测定这些有序结构的技术不能检测到或本质上并非与无定形物质不同。例如，有序区域可以是X射线衍射或电子衍射产生的漫散射的小尺寸，如果存在这样的区域，那它的尺寸最多约50到100纳米。
即使催化相是无定形的，当碱量相对于所用胶体的硅酸盐、铝酸盐或其结合的量有所增加时，一小部分碱可以作为碳酸盐或碳酸氢盐而沉淀。例如，X射线衍射图可以显示出在X射线技术的噪声之上可辨别出的小峰。例如，在用于针状莫来石多孔陶瓷体的胶体中的Cs2O与SiO2为1∶1的摩尔比下，这样的碳酸盐/碳酸氢盐峰可以观察到并且这些催化剂是本发明的实施方案。在更低比率下，这样的碳酸盐/碳酸氢盐峰变得越来越不易分辨。例如在大约1∶4的比率下，这样的峰从背景噪声中难以分辨，甚至完全不能分辨。
催化相包括含有氧化物玻璃的碱，该氧化物玻璃具有Si、Al或其结合。该玻璃可以含有任何碱或碱原子的结合。优选该碱是Na、K、Rb、Cs或它们的结合。更优选该碱是Na、K、Cs或它们的结合。甚至更优选该碱是K、Cs或它们的结合。最优选该碱是K或Cs。
玻璃中的碱量可以是任何足以促进煤烟燃烧的量。通常玻璃中的碱量为约0.01～50摩尔％。优选玻璃中的碱量为至少约0.5％，更优选至少约1％，最优选至少约2％至优选最多约25％，更优选最多约20％，最优选优选最多约15摩尔％。通常对应于催化多孔陶瓷中存在的碱量的至少约0.05～约10重量％。优选地，碱量为至少约0.1％，更优选至少约0.2％，最优选至少约0.3％至优选最多约7％，更优选最多约5％，最优选最多约3重量％。
除了碱，氧化物玻璃还含有Si、Al或其结合。这表示在玻璃中，存在硅酸盐(Si-O四面体结构)、铝酸盐(Al-O八面体结构)或其结合。Si、Al或其结合的量可以在较大范围内变化，只要其足以抑制在一般操作温度(约500℃)下的碱的挥发。通常，根据存在于玻璃中的玻璃和碱以及可以存在于玻璃中的其它组分，Si、Al或其结合的量可以在较宽范围内变化。例如Si、Al或其结合可以在99.95～50摩尔％的范围内。在一个优选实施方案中，氧化物玻璃是硅酸盐。在一个特别优选的实施方案中，该硅酸盐是硅酸钾。
除了无定形催化相以外，该多孔陶瓷还可以具有其它用于例如柴油机排放物的催化剂。例如，NOx催化剂或储存化合物、HC催化剂、CO催化剂等可以存在于该多孔陶瓷中。这种任选催化剂的例子如下。
第一示例性任选催化剂是直接连接的金属催化剂，例如贵金属、贱金属及其结合。贵金属催化剂的例子包括铂、铑、钯、钌、铼、银及其合金。贱金属催化剂的例子包括铜、铬、铁、钴、镍、锌、锰、钒、钛、钪及其结合。优选地，金属催化剂是以金属的形式，但可以以无机化合物如氧化物、氮化物和碳化物存在，或在多孔陶瓷的陶瓷晶粒中以缺陷结构存在。可以通过任何合适的技术，如本领域公知的技术使用金属。例如，通过化学气相沉积技术使用金属催化剂。
第二示例性任选催化剂是加入到多孔陶瓷的陶瓷晶粒的晶格结构的催化剂。例如，元素可以是Ce、Zr、La、Mg、Ca、上段所述的金属元素或它们的结合。可以以任何适合的方式，如本领域公知的方式加入这些元素。
第三示例性任选催化剂是具有沉积于其上的金属的陶瓷粒子的结合物。这些通常称之为封固底漆(wash coat)。通常，封固底漆是由微米大小的陶瓷粒子组成的，如具有沉积于其上的金属的沸石、硅铝酸盐、二氧化硅、二氧化铈、氧化锆、氧化钡、碳酸钡和氧化铝粒子。金属可以是任何上述用于直接沉积的金属。特别优选的封固底漆催化剂涂料是包括氧化铝粒子的那些，在该氧化铝粒子上具有贵金属。已知封固底漆可以包括一种以上的金属氧化物，如具有锆、钡、镧、镁和铈中至少一种的氧化物的氧化铝。
第四示例性任选催化剂是钙钛矿型催化剂，其包括金属氧化物组合物，例如Golden在美国专利No.5,939,354中所述的那些。
无定形催化相组分碱、Si、Al或其结合可以以任何适合的方法，如本领域公知的方法，沉积在多孔陶瓷上。例如一种或多种催化剂组分可以通过以下方法沉积，如美国专利Nos.4,515,758；4,740,360；5,013,705；5,063,192；5,130,109；5,254,519；5,993,762和；美国专利申请公开2002/0044897；2002/0197191和2003/0124037；国际专利申请WO 97/00119；WO 99/12642；WO 00/62923；WO 01/02083和WO03/011437；和英国专利No.1,119,180中所述的方法。
在一个具体实施方案中，可以通过沉淀化合物，例如溶于含有碱的硅酸盐、铝酸盐或铝硅酸盐的液体(通常为水)的碱的硅酸盐、铝酸盐或其结合来沉积催化剂的碱成分。
优选地，通过将多孔陶瓷体暴露于含有硅酸盐、铝酸盐或铝硅酸盐或其结合的化合物以制备催化相。通常，碱的硅酸盐、铝酸盐或铝硅酸盐是分散在液体中的胶体。此处的胶体表示每个具有小于1微米的平均粒子大小的颗粒。胶体可以是晶体或无定形的。优选地，胶体是无定形的。胶体优选为Na、Cs、K或其结合的硅酸盐。优选地，胶体是Cs、K或其结合的硅酸盐。最优选地，胶体是K或Cs的硅酸盐。示例性碱的硅酸盐、铝酸盐或铝硅酸盐包括粘土、合成胶体，如本领域已知并且以如下商标可得的那些：KASIL和N，PQ Corporation，POBox 840，Valley Forge，PA.；ZACSIL，Zaclon Incorporated，2981Independence Rd.，Cleveland，OH；硅酸钠，Occidental ChemicalCorporation，Occidental Tower，5005 LBJ Freeway，Dallas，TX。
胶体优选具有小粒子尺寸，其中所有粒子的直径小于1微米。优选地，平均粒子直径为直径小于约500纳米(nm)，更优选小于约250nm，甚至更优选小于约100nm，最优选小于约50nm至优选至少约1nm，更优选至少约5nm，最优选至少约10nm。
多孔体可以以任何适合的方法，如本领域公知的方法，暴露于上述的碱的硅酸盐、铝酸盐或铝硅酸盐。例如通过喷雾、浸渍、沉浸将胶体的液体分散浸渗到多孔体中，然后干燥。
在多孔陶瓷与例如胶体接触以后，加热多孔体，例如，以形成无定形催化相并且如需要，使催化相熔于多孔陶瓷体。通常，加热温度为至少约400℃～约1600℃。典型地，温度为至少约500℃～约1000℃。通常，大气需要含有足够量的氧气以确保玻璃是硅酸盐、铝酸盐或铝硅酸盐(即含有氧的一个)。通常，空气适于加热催化剂组合以形成无定形催化相。如需要或必要，可以进行所述的另一种在降低或惰性气氛中的加热至相似温度以形成其它任选的催化剂，如贵金属。
令人吃惊地，与仅由碱氧化物催化的相同滤器相比，触媒滤器具有改进的煤烟燃烧，其中平衡点温度通常至少一样低，并且寿命得以显著改进。此外，煤烟燃烧温度比用于煤烟燃烧的典型二氧化铈和贵金属催化剂的温度明显地低。
实施例
实施例1
用足够的硅酸钾溶液(KASIL#1，PQ Corp.，Valley Forge，PA)浸渗一个具有2×5的单元、约1.5英寸长的针状莫来石柴油机颗粒滤器(200单元/平方英寸)以充满墙孔体积，然后在115℃的烘箱干燥，该滤器用描述于WO 03/0827731A的实施例4(包括如WO 03/082773A1的实施例4中所述的至1400℃的热处理)的相同方式制得。在800℃下煅烧干燥样品1小时。
用含有分散于约0.5重量％的淤浆TRITON X-100(Rohm & Haas，Philadelphia，PA)表面活性剂的水溶液的5重量％碳黑(Regal 330R，Cabot Corporation，Boston，MA)的悬浮液对棒进行喷雾，然后在115℃的烘箱干燥。将约0.5mg的碳黑沉积在棒上以形成不透明的黑涂层。在550℃下，将该棒放置于管形熔炉中10分钟，然后移出。碳黑完全燃尽。
重复循环该棒以进行所述燃烧测试，除了将熔炉条件变为在575℃下15分钟。在48周循环之后，碳仍然完全燃尽，此时停止燃烧测试。
实施例2
使用与实施例1相同的方式制备第二个棒，除了使用SiC柴油机颗粒滤器(Ibiden Co.，LTD，Ogaki-shi，Japan)而非针状莫来石柴油机颗粒滤器。用相同方式测试该棒，并且在550℃碳完全燃尽，在28周循环之后在575℃煤烟完全燃尽，此时停止测试。
实施例3
使用与实施例1相同的方式制备第三个棒，除了使用堇青石颗粒滤器(Corning Incorporated，Corning，NY)而非针状莫来石柴油机颗粒滤器。用实施例2中所述的相同方式测试该棒并且该棒得到与实施例2相同的结果。
实施例4
使用与实施例1相同的方式制备第四个棒，除了用硅酸铯溶液(3.92SiO2:Cs2O)浸渗该棒，然后在115℃的烘箱中干燥。通过用50重量％CsOH(其余为水)加热雾化二氧化硅至85℃进行4小时以产生该溶液。在700℃下煅烧干燥样品1小时。
用相同方式测试该棒，除了将5重量％油(Mobil 1，ExxonMobilCorporation，Irving，TX)加入到碳淤浆中。在500℃下碳完全燃尽并且在550℃下经过450周循环后煤烟完全燃尽，此时停止测试。
对比实施例1
用足够的20重量％的硝酸盐稳定的二氧化铈的溶液(Nyacol NanoTechnologies，Inc，Ashland，MA)浸渗与实施例1相同的具有2×5的单元、约1.5英寸长的针状莫来石柴油机颗粒滤器的一部分，以充满墙孔体积，然后在115℃的烘箱干燥。在800℃下煅烧干燥样品1小时。如实施例1所述，在550℃下测试该棒。该棒保持为黑色，带有煤烟。
对比实施例2
用实施例1中描述的相同方法制备棒，除了不在基质中添加催化剂。如实施例1所述，在550℃下测试该棒。该棒保持为黑色，带有煤烟。
Claims (31)
1.一种触媒滤烟器，包括在多孔陶瓷的至少一部分上具有无定形催化相的多孔陶瓷，所述无定形催化相包括含有其中具有Si、Al或其结合的氧化物玻璃的碱。
2.根据权利要求1所述的触媒滤烟器，其中所述含有玻璃的碱是Na、K、Cs或它们的结合的碱。
3.根据权利要求2所述的触媒滤烟器，其中所述碱是Cs、K或它们的结合。
4.根据权利要求3所述的触媒滤烟器，其中所述碱是K。
5.根据权利要求1所述的触媒滤烟器，其中所述含有氧化物玻璃的碱是硅酸盐。
6.根据权利要求1所述的触媒滤烟器，其中所述多孔陶瓷中碱量占多孔陶瓷和无定形催化相的重量的至少约0.1至最多约7重量％。
7.根据权利要求6所述的触媒滤烟器，其中所述碱量为至少约0.2％。
8.根据权利要求7所述的触媒滤烟器，其中所述碱量为至少约0.3％。
9.根据权利要求6所述的触媒滤烟器，其中所述碱量为最多约5％。
10.根据权利要求9所述的触媒滤烟器，其中所述碱量为最多约3％。
11.根据权利要求1所述的触媒滤烟器，其中所述多孔陶瓷是莫来石、堇青石、碳化硅或它们的结合。
12.根据权利要求11所述的触媒滤烟器，其中所述多孔陶瓷是堇青石或莫来石。
13.根据权利要求12所述的触媒滤烟器，其中所述多孔陶瓷是莫来石。
14.根据权利要求13所述的触媒滤烟器，其中所述多孔陶瓷是针状莫来石。
15.一种形成触媒滤烟器的方法，包括将多孔陶瓷体暴露于含有硅酸盐、铝酸盐、铝硅酸盐或它们的结合的化合物的碱，以使得多孔陶瓷的至少一部分与含有化合物的碱接触，并且将接触的多孔陶瓷加热到足以使包含Si、Al或其结合的氧化物玻璃的碱熔于其中的温度。
16.根据权利要求15所述的方法，其中所述含有化合物的碱是为K、Na、Cs或它们的结合的碱。
17.根据权利要求16所述的方法，其中所述碱是Cs、K或它们的结合的碱。
18.根据权利要求17所述的方法，其中所述碱是K。
19.根据权利要求15所述的方法，其中所述含有化合物的碱是硅酸盐。
20.根据权利要求15所述的方法，其中所述含有化合物的碱是平均粒度为直径小于约500nm的胶体。
21.根据权利要求15所述的方法，其中所述含有化合物的碱是胶态碱硅酸盐。
22.根据权利要求21所述的方法，其中所述胶态碱硅酸盐是K、Cs或它们的结合的碱。
23.根据权利要求22所述的方法，其中所述碱是K。
24.根据权利要求15所述的方法，其中所述含有化合物的碱是粘土。
25.根据权利要求15所述的方法，其中所述多孔陶瓷体是在多孔陶瓷的陶瓷表面的至少一部分上具有氧化物相的一种，其中所述表面相包括基本上不含碱的Si、Al或其结合。
26.根据权利要求25所述的方法，其中所述多孔陶瓷是堇青石、莫来石、碳化硅或它们的结合。
27.根据权利要求26所述的方法，其中所述多孔陶瓷是莫来石或堇青石或它们的结合。
28.根据权利要求27所述的方法，其中所述多孔陶瓷是莫来石。
29.根据权利要求28所述的方法，其中所述莫来石是针状莫来石。
30.根据权利要求3所述的触媒滤烟器，其中所述碱是Cs。
31.根据权利要求17所述的方法，其中所述碱是Cs。
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| US6736875B2 (en) | 2001-12-13 | 2004-05-18 | Corning Incorporated | Composite cordierite filters |
| CA2480167C (en) | 2002-03-25 | 2011-03-08 | Dow Global Technologies Inc. | Mullite bodies and methods of forming mullite bodies |
| US6764664B2 (en) | 2002-04-22 | 2004-07-20 | Delphi Technologies, Inc. | Catalyst for the combustion of diesel soot, methods for making the catalyst and methods of using the catalyst |
| JP4750415B2 (ja) | 2002-07-31 | 2011-08-17 | コーニング インコーポレイテッド | チタン酸アルミニウムベースのセラミック製品 |
| US6849181B2 (en) | 2002-07-31 | 2005-02-01 | Corning Incorporated | Mullite-aluminum titanate diesel exhaust filter |
-
2005
- 2005-07-26 KR KR1020077004419A patent/KR20070047322A/ko active Application Filing
- 2005-07-26 US US11/189,531 patent/US7438739B2/en not_active Expired - Fee Related
- 2005-07-26 PL PL05775376T patent/PL1774145T3/pl unknown
- 2005-07-26 ZA ZA200700756A patent/ZA200700756B/xx unknown
- 2005-07-26 DE DE602005009961T patent/DE602005009961D1/de active Active
- 2005-07-26 KR KR1020137005139A patent/KR20130028152A/ko not_active Application Discontinuation
- 2005-07-26 EP EP05775376A patent/EP1774145B1/en not_active Not-in-force
- 2005-07-26 WO PCT/US2005/026616 patent/WO2006015033A1/en active Application Filing
- 2005-07-26 AT AT05775376T patent/ATE409275T1/de not_active IP Right Cessation
- 2005-07-26 CN CN2005800251831A patent/CN101069000B/zh not_active Expired - Fee Related
- 2005-07-26 CA CA2574680A patent/CA2574680C/en not_active Expired - Fee Related
- 2005-07-26 BR BRPI0513605-9A patent/BRPI0513605A/pt not_active IP Right Cessation
- 2005-07-26 ES ES05775376T patent/ES2312008T3/es active Active
- 2005-07-26 JP JP2007523764A patent/JP2008507405A/ja not_active Withdrawn
- 2005-07-26 RU RU2007103012/06A patent/RU2384714C2/ru not_active IP Right Cessation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102482143A (zh) * | 2009-09-30 | 2012-05-30 | 住友化学株式会社 | 玻璃料和利用其的碳微粒的氧化方法 |
| CN103269774A (zh) * | 2010-10-22 | 2013-08-28 | 庄信万丰股份有限公司 | NOx存储组分 |
| CN103269774B (zh) * | 2010-10-22 | 2016-06-08 | 庄信万丰股份有限公司 | NOx存储组分 |
Also Published As
| Publication number | Publication date |
|---|---|
| US20060018806A1 (en) | 2006-01-26 |
| ZA200700756B (en) | 2008-09-25 |
| WO2006015033A8 (en) | 2007-07-12 |
| ES2312008T3 (es) | 2009-02-16 |
| RU2007103012A (ru) | 2008-07-27 |
| US7438739B2 (en) | 2008-10-21 |
| DE602005009961D1 (de) | 2008-11-06 |
| KR20070047322A (ko) | 2007-05-04 |
| RU2384714C2 (ru) | 2010-03-20 |
| CA2574680C (en) | 2012-05-29 |
| BRPI0513605A (pt) | 2008-05-13 |
| EP1774145B1 (en) | 2008-09-24 |
| CA2574680A1 (en) | 2006-02-09 |
| JP2008507405A (ja) | 2008-03-13 |
| ATE409275T1 (de) | 2008-10-15 |
| PL1774145T3 (pl) | 2009-03-31 |
| EP1774145A1 (en) | 2007-04-18 |
| WO2006015033A1 (en) | 2006-02-09 |
| CN101069000B (zh) | 2010-12-08 |
| KR20130028152A (ko) | 2013-03-18 |
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