FI89462B - Katalysator foer rening av motorfordons avgaser och foerfarande foer dess framstaellning - Google Patents
Katalysator foer rening av motorfordons avgaser och foerfarande foer dess framstaellning Download PDFInfo
- Publication number
- FI89462B FI89462B FI874243A FI874243A FI89462B FI 89462 B FI89462 B FI 89462B FI 874243 A FI874243 A FI 874243A FI 874243 A FI874243 A FI 874243A FI 89462 B FI89462 B FI 89462B
- Authority
- FI
- Finland
- Prior art keywords
- catalyst
- rhodium
- platinum
- inner layer
- catalytically active
- Prior art date
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- 239000003054 catalyst Substances 0.000 title claims abstract description 125
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims abstract description 104
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims abstract description 68
- 239000010948 rhodium Substances 0.000 claims abstract description 62
- 229910052703 rhodium Inorganic materials 0.000 claims abstract description 57
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 claims abstract description 57
- 238000000034 method Methods 0.000 claims abstract description 54
- 229910052697 platinum Inorganic materials 0.000 claims abstract description 46
- 239000007789 gas Substances 0.000 claims abstract description 23
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 87
- 239000002002 slurry Substances 0.000 claims description 58
- 229910000420 cerium oxide Inorganic materials 0.000 claims description 38
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims description 38
- 238000000746 purification Methods 0.000 claims description 18
- 150000003755 zirconium compounds Chemical class 0.000 claims description 14
- 150000003058 platinum compounds Chemical class 0.000 claims description 10
- 239000002243 precursor Substances 0.000 claims description 10
- 150000003284 rhodium compounds Chemical class 0.000 claims description 10
- 229910052878 cordierite Inorganic materials 0.000 claims description 6
- 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 claims description 6
- VXNYVYJABGOSBX-UHFFFAOYSA-N rhodium(3+);trinitrate Chemical group [Rh+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O VXNYVYJABGOSBX-UHFFFAOYSA-N 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- LYTNHSCLZRMKON-UHFFFAOYSA-L oxygen(2-);zirconium(4+);diacetate Chemical compound [O-2].[Zr+4].CC([O-])=O.CC([O-])=O LYTNHSCLZRMKON-UHFFFAOYSA-L 0.000 claims description 4
- 150000001785 cerium compounds Chemical class 0.000 claims description 2
- 229940125846 compound 25 Drugs 0.000 claims 1
- NFOHLBHARAZXFQ-UHFFFAOYSA-L platinum(2+);dihydroxide Chemical group O[Pt]O NFOHLBHARAZXFQ-UHFFFAOYSA-L 0.000 claims 1
- 230000003197 catalytic effect Effects 0.000 abstract description 11
- 239000000758 substrate Substances 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 abstract 1
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 abstract 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 25
- 239000000243 solution Substances 0.000 description 20
- 229910002091 carbon monoxide Inorganic materials 0.000 description 15
- 230000000052 comparative effect Effects 0.000 description 12
- 230000005484 gravity Effects 0.000 description 12
- 238000001354 calcination Methods 0.000 description 11
- 239000003870 refractory metal Substances 0.000 description 11
- 239000002253 acid Substances 0.000 description 8
- 239000002245 particle Substances 0.000 description 8
- 238000001556 precipitation Methods 0.000 description 8
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 6
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 6
- 150000001412 amines Chemical class 0.000 description 6
- 229930195733 hydrocarbon Natural products 0.000 description 6
- 150000002430 hydrocarbons Chemical class 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- -1 platinum group metals Chemical class 0.000 description 6
- 229910044991 metal oxide Inorganic materials 0.000 description 5
- 150000004706 metal oxides Chemical class 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 239000010802 sludge Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 229910052684 Cerium Inorganic materials 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 4
- 230000001376 precipitating effect Effects 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 229910001092 metal group alloy Inorganic materials 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 229910000510 noble metal Inorganic materials 0.000 description 3
- 229910052763 palladium Inorganic materials 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000007900 aqueous suspension Substances 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 150000004677 hydrates Chemical class 0.000 description 2
- 229910052746 lanthanum Inorganic materials 0.000 description 2
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 229910001682 nordstrandite Inorganic materials 0.000 description 2
- 229910052573 porcelain Inorganic materials 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 150000002910 rare earth metals Chemical class 0.000 description 2
- SONJTKJMTWTJCT-UHFFFAOYSA-K rhodium(iii) chloride Chemical compound [Cl-].[Cl-].[Cl-].[Rh+3] SONJTKJMTWTJCT-UHFFFAOYSA-K 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- IVORCBKUUYGUOL-UHFFFAOYSA-N 1-ethynyl-2,4-dimethoxybenzene Chemical compound COC1=CC=C(C#C)C(OC)=C1 IVORCBKUUYGUOL-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 241000723368 Conium Species 0.000 description 1
- 241000411532 Erites Species 0.000 description 1
- 239000004386 Erythritol Substances 0.000 description 1
- UNXHWFMMPAWVPI-UHFFFAOYSA-N Erythritol Natural products OCC(O)C(O)CO UNXHWFMMPAWVPI-UHFFFAOYSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 229910052779 Neodymium Inorganic materials 0.000 description 1
- RSPISYXLHRIGJD-UHFFFAOYSA-N OOOO Chemical compound OOOO RSPISYXLHRIGJD-UHFFFAOYSA-N 0.000 description 1
- 235000009470 Theobroma cacao Nutrition 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 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
- 229940045985 antineoplastic platinum compound Drugs 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 244000240602 cacao Species 0.000 description 1
- 239000000919 ceramic Substances 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
- 229940125773 compound 10 Drugs 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 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 description 1
- 230000000694 effects Effects 0.000 description 1
- UNXHWFMMPAWVPI-ZXZARUISSA-N erythritol Chemical compound OC[C@H](O)[C@H](O)CO UNXHWFMMPAWVPI-ZXZARUISSA-N 0.000 description 1
- 229940009714 erythritol Drugs 0.000 description 1
- 235000019414 erythritol Nutrition 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 229910001679 gibbsite Inorganic materials 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 1
- 239000000391 magnesium silicate Substances 0.000 description 1
- 229910052919 magnesium silicate Inorganic materials 0.000 description 1
- 235000019792 magnesium silicate Nutrition 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 1
- MUMZUERVLWJKNR-UHFFFAOYSA-N oxoplatinum Chemical compound [Pt]=O MUMZUERVLWJKNR-UHFFFAOYSA-N 0.000 description 1
- 229910003446 platinum oxide Inorganic materials 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000012495 reaction gas Substances 0.000 description 1
- QKLCKVVKVHCMIC-UHFFFAOYSA-N rhodium(3+);trinitrate;hydrate Chemical compound O.[Rh+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O QKLCKVVKVHCMIC-UHFFFAOYSA-N 0.000 description 1
- 210000002966 serum Anatomy 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052851 sillimanite Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
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- 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
- B01D53/9445—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC]
- B01D53/945—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC] characterised by a specific catalyst
-
- 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
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/56—Platinum group metals
- B01J23/63—Platinum group metals with rare earths or actinides
-
- 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
-
- 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—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/61—Surface area
-
- 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
- B01J37/024—Multiple impregnation or coating
- B01J37/0244—Coatings comprising several layers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Biomedical Technology (AREA)
- Health & Medical Sciences (AREA)
- Combustion & Propulsion (AREA)
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Control Of Electric Motors In General (AREA)
- Inert Electrodes (AREA)
- Display Devices Of Pinball Game Machines (AREA)
Claims (23)
1. Katalysator för rening av avgaser, vilken kata-lysator omfattar en katalytiskt väsentligen inert, eld-5 fast monolitisk bärare, ett inre skikt, som innehäller en katalytiskt aktiv eldfast oxid och som bildats pä ytan av bäraren, och ett yttre skikt, som innehäller en katalytiskt aktiv eldfast oxid och som bildats pä ytan av det inre skiktet, kännetecknad därav, att bära-10 ren har kontinuerliga längstrackta fria strömningskana-ler, av vilka var och en sträcker sig genom bäraren och vilka begränsas av en tunn vägg, det inre skiktet är ut-fällt pä kanalernas väggar och det innehäller ceriumoxid och platina och dess vikt är 10-200 g/1 katalysator, det 15 yttre skiktet är utfällt pä ytan av det inre skiktet och det innehäller en zirkoniumförening och rodium och dess vikt är 5-60 g/1 katalysator, och den katalytiskt aktiva eldfasta oxiden är finfördelad och den har en specifik ytarea av minst 10 m2/9·
2. Katalysator enligt patentkravet 1, känne tecknad därav, att tjockleken av det inre skiktet är 5-110 pm och tjockleken av det yttre skiktet är 3-35 pm.
3. Katalysator enligt patentkravet 1 eller 2, 25 kännetecknad därav, att den katalytiskt aktiva eldfasta oxiden är aktiv aluminiumoxid.
4. Katalysator enligt nägot av patentkraven 1-3, kännetecknad därav, att bäraren bestär av kordierit.
5. Katalysator enligt nägot av patentkraven 1-3, kännetecknad därav, att bäraren bestär av me-tall.
6. Katalysator enligt nägot av patentkraven 1-5, kännetecknad därav, att mängden ceriumoxid är 35 15-40 vikt-% beräknat pä det inre skiktet. 27 3 9 4 2
7. Katalysator enligt nägot av patentkraven 1-6, kännetecknad därav, att mängden platina är 0,1-3,5 vikt-% beräknat pä det inre skiktet.
8. Katalysator enligt nägot av patentkraven 1-7, 5 kännetecknad därav, att zirkoniumföreningen är zirkoniumoxid.
9. Katalysator enligt nägot av patentkraven 1-8, kännetecknad därav, att mängden zirkoniumfö-rening är 10-30 vikt-% beräknat pä det yttre skiktet.
10. Katalysator enligt nägot av patentkraven 1-9, kännetecknad därav, att mängden rodium är 0,05-2,00 vikt-% beräknat pä det yttre skiktet.
11. Förfarande för framställning av en katalysator avsedd för rening av avgaser, vilken katalysator omfattar 15 en katalytiskt väsentligen inert, eldfast monolitisk bä-rare, ett inre skikt, som innehäller en katalytiskt aktiv eldfast oxid och som bildats pä ytan av bäraren, och ett yttre skikt, som innehäller en katalytiskt aktiv eldfast oxid och som bildats pä ytan av det inre skiktet, varvid 20 bäraren har kontinuerliga längsträckta fria strömningska-naler, av vilka var och en sträcker sig genom bäraren och vilka begränsas av en tunn vägg, det inre skiktet är ut-fällt pä kanalernas väggar och det innehäller ceriumoxid och platina och dess vikt är 10-200 g/1 katalysator, det 25 yttre skiktet är utfällt pä ytan av det inre skiktet och det innehäller en zirkoniumförening och rodium och dess vikt är 5-60 g/1 katalysator, och den katalytiskt aktiva eldfasta oxiden är finfördelad och den har en specifik ytarea av minst 10 m2/g, kännetecknat därav 30 att en uppslamning, som innehäller en finfördelad, katalytiskt aktiv eldfast oxid och/eller en prekursor därav, ceriumoxid eller en annan ceriumförening och platina el-ler en platinaförening, utfälls pä en katalytiskt väsentligen inert eldfast monolitisk bärare, varefter en upp-35 slamning, som innehäller en finfördelad katalytiskt aktiv eldfast oxid och/eller en prekursor därav, zirkoniumoxid 28 39 462 eller en annan zirkoniumförening och rodium eller en ro-diumförening, utfälls pä bäraren, och bäraren,pä vilken uppslamningarna utfällts, kalcineras.
12. Förfarande enligt patentkravet 11, k ä n n e -5 tecknat därav, att tjockleken av det inre skiktet är 5-110 pm och tjockleken av det yttre skiktet är 3-35 pm.
13. Förfarande enligt patentkravet 11 eller 12, kännetecknat därav, att den katalytiskt akti- 10 va eldfasta oxiden är aktiv aluminiumoxid.
14. Förfarande enligt nägot av patentkraven 11-13, kännetecknat därav, att bäraren bestär av kordierit.
15. Förfarande enligt nägot av patentkraven 11-13, 15 kännetecknat därav, att bäraren bestär av me- tall.
16. Förfarande enligt nägot av patentkraven 11-15, kännetecknat därav, att mängden ceriumoxid är 15-40 vikt-% beräknat pä det inre skiktet. 20
17. Förfarande enligt nägot av patentkraven 11-16, kännetecknat därav, att mängden platina är 0,1-3,5 vikt-% beräknat pä det inre skiktet.
18. Förfarande enligt nägot av patentkraven 11-17, kännetecknat därav, att zirkoniumföreningen 25 är zirkoniumoxid.
19. Förfarande enligt nägot av patentkraven 11-17, kännetecknat därav, att zirkoniumföreningen är zirkonylacetat.
20. Förfarande enligt nägot av patentkraven 11-19, 30 kännetecknat därav, att mängden zirkoniumfö rening är 10-30 vikt-% beräknat pä det yttre skiktet.
21. Förfarande enligt nägot av patentkraven 11-20, kännetecknat därav, att mängden rodium är 0,05-2,00 vikt-% beräknat pä det yttre skiktet. 35 29 394:12
22. Förfarande enligt nägot av patentkraven 11-21, kännetecknat därav, att platinaföreningen i uppslamningen är platinahydroxid.
23. Förfarande enligt nägot av patentkraven 11-22, 5 kännetecknat därav, att rodiumföreningen i uppslamningen är rodiumnitrat.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23002686 | 1986-09-30 | ||
| JP61230026A JPS6388040A (ja) | 1986-09-30 | 1986-09-30 | 車輌用排気ガス浄化用触媒及びその製造方法 |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| FI874243A0 FI874243A0 (fi) | 1987-09-28 |
| FI874243A FI874243A (fi) | 1988-03-31 |
| FI89462B true FI89462B (fi) | 1993-06-30 |
| FI89462C FI89462C (sv) | 1993-10-11 |
Family
ID=16901405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI874243A FI89462C (sv) | 1986-09-30 | 1987-09-28 | Katalysator för rening av motorfordons avgaser och förfarande för dess framställning |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US4806519A (sv) |
| EP (1) | EP0262962B1 (sv) |
| JP (1) | JPS6388040A (sv) |
| KR (1) | KR960000019B1 (sv) |
| CN (1) | CN1014033B (sv) |
| AT (1) | ATE85902T1 (sv) |
| AU (1) | AU610084B2 (sv) |
| BR (1) | BR8704924A (sv) |
| CA (1) | CA1298268C (sv) |
| DE (1) | DE3784297T2 (sv) |
| ES (1) | ES2053556T3 (sv) |
| FI (1) | FI89462C (sv) |
| GR (1) | GR3007134T3 (sv) |
| MX (1) | MX168849B (sv) |
Families Citing this family (57)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0675675B2 (ja) * | 1986-11-04 | 1994-09-28 | トヨタ自動車株式会社 | 排気ガス浄化用触媒 |
| US4782038C1 (en) * | 1987-10-26 | 2001-04-17 | Ford Motor Co | Platinum group alumina-supported metal oxidation catalysts and method of making same |
| SE462143C (sv) * | 1988-03-07 | 1996-02-19 | Heraeus Gmbh W C | Katalysator för bilavgasrening, förfarande för framställning därav samt användning därav |
| US5015617A (en) * | 1988-04-14 | 1991-05-14 | Nippon Shokubai Kagaku Kogyo Co., Ltd. | Catalyst for purifying exhaust gas and method for production thereof |
| US5047381A (en) * | 1988-11-21 | 1991-09-10 | General Electric Company | Laminated substrate for catalytic combustor reactor bed |
| US5286699A (en) * | 1988-12-09 | 1994-02-15 | Nippon Shokubai Kagaku Kogyo Co., Ltd. | Exhaust gas purifying catalyst suppressing the generation of hydrogen sulfide and method of making the catalyst |
| WO1990014887A1 (en) * | 1989-06-09 | 1990-12-13 | N.E. Chemcat Corporation | Exhaust gas purifying catalyst excellent in thermal resistance and method of production thereof |
| JPH0338250A (ja) * | 1989-07-06 | 1991-02-19 | Mazda Motor Corp | 排気ガス浄化用触媒 |
| US5010051A (en) * | 1989-11-08 | 1991-04-23 | Engelhard Corporation | Staged three-way conversion catalyst and method of using the same |
| US5130109A (en) * | 1990-02-22 | 1992-07-14 | Wan Chung Zong | Catalyst composition containing segregated platinum and rhodium components |
| US5057483A (en) * | 1990-02-22 | 1991-10-15 | Engelhard Corporation | Catalyst composition containing segregated platinum and rhodium components |
| US5254519A (en) * | 1990-02-22 | 1993-10-19 | Engelhard Corporation | Catalyst composition containing platinum and rhodium components |
| JP3113662B2 (ja) * | 1990-02-26 | 2000-12-04 | 株式会社日本触媒 | ディーゼルエンジン排ガス浄化用触媒体 |
| JP3061399B2 (ja) * | 1990-06-20 | 2000-07-10 | 株式会社日本触媒 | ディーゼルエンジン排ガス浄化用触媒および浄化方法 |
| US5116800A (en) * | 1990-12-11 | 1992-05-26 | Allied-Signal Inc. | High durability and exhuast catalyst with low hydrogen sulfide emissions |
| JP2848970B2 (ja) * | 1990-12-21 | 1999-01-20 | 日本碍子株式会社 | ハニカムヒーター及び触媒コンバーター |
| NL9100210A (nl) * | 1991-02-06 | 1992-09-01 | Veg Gasinstituut Nv | Katalysator- of membraan-precursorsystemen, katalysator- of membraan-systemen alsmede werkwijze voor de vervaardiging daarvan. |
| US5168085A (en) * | 1991-05-20 | 1992-12-01 | Corning Incorporated | Multi-stage twc system |
| EP0524643B1 (en) * | 1991-07-25 | 1996-04-24 | Corning Incorporated | Pore impregnated catalyst device |
| US5212142A (en) * | 1991-11-04 | 1993-05-18 | Engelhard Corporation | High performance thermally stable catalyst |
| EP0705134B1 (en) * | 1993-06-25 | 1999-04-14 | Engelhard Corporation | Layered catalyst composite |
| FR2720296B1 (fr) * | 1994-05-27 | 1996-07-12 | Rhone Poulenc Chimie | Composés à base d'alumine, d'oxyde de cérium et d'oxyde de zirconium à réductibilité élevée, leur procédé de préparation et leur utilisation dans la préparation de catalyseurs. |
| JP3511314B2 (ja) * | 1994-07-12 | 2004-03-29 | 株式会社キャタラー | 排気ガス浄化用触媒および排気ガス浄化方法 |
| US5556825A (en) * | 1995-01-06 | 1996-09-17 | Ford Motor Company | Automotive catalysts with improved oxygen storage and metal dispersion |
| JP3286134B2 (ja) * | 1995-10-12 | 2002-05-27 | ファイラックインターナショナル株式会社 | 流体燃料の改質用セラミックス触媒 |
| US6087298A (en) * | 1996-05-14 | 2000-07-11 | Engelhard Corporation | Exhaust gas treatment system |
| US5948377A (en) * | 1996-09-04 | 1999-09-07 | Engelhard Corporation | Catalyst composition |
| US5981427A (en) * | 1996-09-04 | 1999-11-09 | Engelhard Corporation | Catalyst composition |
| US5948723A (en) * | 1996-09-04 | 1999-09-07 | Engelhard Corporation | Layered catalyst composite |
| US6248688B1 (en) | 1996-09-27 | 2001-06-19 | Engelhard Corporation | Catalyst composition containing oxygen storage components |
| US5898014A (en) * | 1996-09-27 | 1999-04-27 | Engelhard Corporation | Catalyst composition containing oxygen storage components |
| US6921738B2 (en) | 1996-12-06 | 2005-07-26 | Engelhard Corporation | Catalytic metal plate |
| TW442324B (en) | 1996-12-06 | 2001-06-23 | Engelhard Corp | Catalytic metal plate |
| CN1104956C (zh) * | 1997-03-25 | 2003-04-09 | 市村富久代 | 流体燃料重组陶瓷催化剂及其制造方法 |
| US6221804B1 (en) * | 1998-01-27 | 2001-04-24 | Mazda Motor Corporation | Catalyst for purifying exhaust gas and manufacturing method thereof |
| US6110862A (en) * | 1998-05-07 | 2000-08-29 | Engelhard Corporation | Catalytic material having improved conversion performance |
| JP3777589B2 (ja) * | 2000-02-28 | 2006-05-24 | 日産自動車株式会社 | 排気ガス浄化用触媒および排気ガス浄化用触媒の製造方法 |
| JP3965676B2 (ja) * | 2001-12-27 | 2007-08-29 | 日産自動車株式会社 | 排ガス浄化用触媒及び排ガス浄化システム |
| JP3915694B2 (ja) | 2002-01-24 | 2007-05-16 | 日産自動車株式会社 | 排気ガス浄化用触媒及びその製造方法 |
| US20050164879A1 (en) * | 2004-01-28 | 2005-07-28 | Engelhard Corporation | Layered SOx tolerant NOx trap catalysts and methods of making and using the same |
| JP4165441B2 (ja) * | 2004-04-27 | 2008-10-15 | トヨタ自動車株式会社 | 排ガス浄化触媒の製造方法 |
| JP2006068665A (ja) * | 2004-09-03 | 2006-03-16 | Toyota Motor Corp | 排ガス浄化触媒の製造方法及び排ガス浄化触媒 |
| JP4648089B2 (ja) * | 2005-05-27 | 2011-03-09 | 株式会社キャタラー | 排ガス浄化用触媒 |
| JP4240011B2 (ja) * | 2005-06-20 | 2009-03-18 | トヨタ自動車株式会社 | 排ガス浄化触媒 |
| CN101282783B (zh) | 2005-10-05 | 2012-07-25 | 株式会社卡特勒 | 废气净化催化剂 |
| JP5373255B2 (ja) * | 2006-05-29 | 2013-12-18 | 株式会社キャタラー | ＮＯｘ還元触媒、ＮＯｘ還元触媒システム、及びＮＯｘ還元方法 |
| US8202819B2 (en) * | 2007-02-01 | 2012-06-19 | Daiichi Kigenso Kagaku Kogyo Co., Ltd. | Catalyst system to be used in automobile exhaust gas purification apparatus, exhaust gas purification apparatus using the same and exhaust gas purification method |
| DE102007025223A1 (de) | 2007-05-31 | 2008-12-04 | Süd-Chemie AG | Zirkoniumoxid-dotierter VAM-Schalenkatalysator, Verfahren zu dessen Herstellung sowie dessen Verwendung |
| DE102007025442B4 (de) | 2007-05-31 | 2023-03-02 | Clariant International Ltd. | Verwendung einer Vorrichtung zur Herstellung eines Schalenkatalysators und Schalenkatalysator |
| US8716165B2 (en) | 2008-04-30 | 2014-05-06 | Corning Incorporated | Catalysts on substrates and methods for providing the same |
| DE102008059341A1 (de) | 2008-11-30 | 2010-06-10 | Süd-Chemie AG | Katalysatorträger, Verfahren zu seiner Herstellung sowie Verwendung |
| DE102009024158A1 (de) | 2009-06-08 | 2010-12-09 | Süd-Chemie AG | Verfahren zur Herstellung eines Dreiwegekatalysators mit Rhodium und Platin geträgert auf getrennten Oxidträgern mit nur einem Beschichtungsschritt und Kalzinierschritt |
| JP5903205B2 (ja) * | 2010-01-04 | 2016-04-13 | 株式会社キャタラー | 排ガス浄化用触媒 |
| TW201502356A (zh) * | 2013-02-21 | 2015-01-16 | Exxonmobil Upstream Res Co | 氣渦輪機排氣中氧之減少 |
| CN103157470B (zh) * | 2013-03-15 | 2015-11-04 | 无锡威孚环保催化剂有限公司 | 汽车尾气三元催化剂 |
| EP3756760A4 (en) | 2018-02-21 | 2021-03-31 | Cataler Corporation | EXHAUST GAS PURIFICATION CATALYST DEVICE |
| US11524285B2 (en) * | 2018-02-21 | 2022-12-13 | Cataler Corporation | Exhaust gas purification catalyst device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1492929A (en) * | 1973-10-24 | 1977-11-23 | Johnson Matthey Co Ltd | Catalytic structures having metallic substrates |
| SE464798B (sv) * | 1973-10-24 | 1991-06-17 | Johnson Matthey Co Ltd | Katalysator innefattande ett substrat, ett mellanliggande oxidskikt och ett katalytiskt skikt |
| FR2466278A1 (fr) * | 1979-10-04 | 1981-04-10 | Pro Catalyse | Catalyseur et procede de traitement des gaz d'echappement des moteurs a combustion interne |
| JPS59127649A (ja) * | 1983-01-05 | 1984-07-23 | Toyota Motor Corp | 排気ガス浄化用触媒 |
| CA1213874A (en) * | 1983-05-12 | 1986-11-12 | Tomohisa Ohata | Process for producing honeycomb catalyst for exhaust gas conversion |
| FR2546078B1 (fr) * | 1983-05-19 | 1987-05-07 | Pro Catalyse | Procede de fabrication de catalyseurs pour le traitement des gaz d'echappement des moteurs a combustion interne |
| JPS60110334A (ja) * | 1983-11-21 | 1985-06-15 | Nissan Motor Co Ltd | 排ガス浄化用触媒の製造方法 |
| FR2568143B1 (fr) * | 1984-07-30 | 1986-12-05 | Prod Catalyse Ste Fse | Catalyseur et procede pour le traitement des gaz d'echappement des moteurs a combustion interne |
-
1986
- 1986-09-30 JP JP61230026A patent/JPS6388040A/ja active Pending
-
1987
- 1987-09-14 MX MX008296A patent/MX168849B/es unknown
- 1987-09-24 BR BR8704924A patent/BR8704924A/pt not_active Application Discontinuation
- 1987-09-24 CA CA000547769A patent/CA1298268C/en not_active Expired - Lifetime
- 1987-09-28 FI FI874243A patent/FI89462C/sv not_active IP Right Cessation
- 1987-09-28 CN CN87106740A patent/CN1014033B/zh not_active Expired
- 1987-09-29 AU AU79060/87A patent/AU610084B2/en not_active Ceased
- 1987-09-29 US US07/102,505 patent/US4806519A/en not_active Expired - Lifetime
- 1987-09-29 KR KR1019870010829A patent/KR960000019B1/ko not_active IP Right Cessation
- 1987-09-30 EP EP87308687A patent/EP0262962B1/en not_active Expired - Lifetime
- 1987-09-30 AT AT87308687T patent/ATE85902T1/de not_active IP Right Cessation
- 1987-09-30 ES ES87308687T patent/ES2053556T3/es not_active Expired - Lifetime
- 1987-09-30 DE DE8787308687T patent/DE3784297T2/de not_active Expired - Lifetime
-
1993
- 1993-02-25 GR GR920402962T patent/GR3007134T3/el unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FI89462C (sv) | 1993-10-11 |
| EP0262962A3 (en) | 1988-06-08 |
| AU7906087A (en) | 1988-04-14 |
| MX168849B (es) | 1993-06-11 |
| KR960000019B1 (ko) | 1996-01-03 |
| CA1298268C (en) | 1992-03-31 |
| EP0262962A2 (en) | 1988-04-06 |
| GR3007134T3 (sv) | 1993-07-30 |
| JPS6388040A (ja) | 1988-04-19 |
| AU610084B2 (en) | 1991-05-16 |
| KR880003667A (ko) | 1988-05-28 |
| FI874243A (fi) | 1988-03-31 |
| DE3784297T2 (de) | 1993-06-09 |
| BR8704924A (pt) | 1988-05-17 |
| DE3784297D1 (de) | 1993-04-01 |
| CN87106740A (zh) | 1988-05-04 |
| EP0262962B1 (en) | 1993-02-24 |
| CN1014033B (zh) | 1991-09-25 |
| FI874243A0 (fi) | 1987-09-28 |
| US4806519A (en) | 1989-02-21 |
| ATE85902T1 (de) | 1993-03-15 |
| ES2053556T3 (es) | 1994-08-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BB | Publication of examined application | ||
| MM | Patent lapsed | ||
| MM | Patent lapsed |
Owner name: ENGELHARD CORPORATION |