DE3835184A1 - Platin-freier dreiwegkatalysator - Google Patents
Platin-freier dreiwegkatalysatorInfo
- Publication number
- DE3835184A1 DE3835184A1 DE3835184A DE3835184A DE3835184A1 DE 3835184 A1 DE3835184 A1 DE 3835184A1 DE 3835184 A DE3835184 A DE 3835184A DE 3835184 A DE3835184 A DE 3835184A DE 3835184 A1 DE3835184 A1 DE 3835184A1
- Authority
- DE
- Germany
- Prior art keywords
- alumina
- catalyst
- ceria
- oxide
- rhodium
- 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
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract 14
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims abstract 10
- 239000003054 catalyst Substances 0.000 claims abstract 9
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 claims abstract 9
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 claims abstract 9
- 239000010948 rhodium Substances 0.000 claims abstract 4
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 claims abstract 4
- 239000011248 coating agent Substances 0.000 claims abstract 3
- 238000000576 coating method Methods 0.000 claims abstract 3
- 229910052763 palladium Inorganic materials 0.000 claims 4
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims 3
- 239000007789 gas Substances 0.000 claims 3
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 claims 3
- PLDDOISOJJCEMH-UHFFFAOYSA-N neodymium(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Nd+3].[Nd+3] PLDDOISOJJCEMH-UHFFFAOYSA-N 0.000 claims 3
- 229910052703 rhodium Inorganic materials 0.000 claims 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 2
- 239000007864 aqueous solution Substances 0.000 claims 2
- 239000012018 catalyst precursor Substances 0.000 claims 2
- 229910052739 hydrogen Inorganic materials 0.000 claims 2
- 239000001257 hydrogen Substances 0.000 claims 2
- 238000005470 impregnation Methods 0.000 claims 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims 2
- 150000003283 rhodium Chemical class 0.000 claims 2
- 239000012266 salt solution Substances 0.000 claims 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims 1
- 229910002637 Pr6O11 Inorganic materials 0.000 claims 1
- 229910000287 alkaline earth metal oxide Inorganic materials 0.000 claims 1
- 238000000137 annealing Methods 0.000 claims 1
- 239000007900 aqueous suspension Substances 0.000 claims 1
- 229910002091 carbon monoxide Inorganic materials 0.000 claims 1
- 239000000919 ceramic Substances 0.000 claims 1
- 150000001785 cerium compounds Chemical class 0.000 claims 1
- VGBWDOLBWVJTRZ-UHFFFAOYSA-K cerium(3+);triacetate Chemical compound [Ce+3].CC([O-])=O.CC([O-])=O.CC([O-])=O VGBWDOLBWVJTRZ-UHFFFAOYSA-K 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 claims 1
- 230000008021 deposition Effects 0.000 claims 1
- 238000001035 drying Methods 0.000 claims 1
- 229930195733 hydrocarbon Natural products 0.000 claims 1
- 150000002430 hydrocarbons Chemical class 0.000 claims 1
- 150000002431 hydrogen Chemical class 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 229910000480 nickel oxide Inorganic materials 0.000 claims 1
- KTUFCUMIWABKDW-UHFFFAOYSA-N oxo(oxolanthaniooxy)lanthanum Chemical compound O=[La]O[La]=O KTUFCUMIWABKDW-UHFFFAOYSA-N 0.000 claims 1
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 claims 1
- MMKQUGHLEMYQSG-UHFFFAOYSA-N oxygen(2-);praseodymium(3+) Chemical compound [O-2].[O-2].[O-2].[Pr+3].[Pr+3] MMKQUGHLEMYQSG-UHFFFAOYSA-N 0.000 claims 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims 1
- 150000002940 palladium Chemical class 0.000 claims 1
- 229910003447 praseodymium oxide Inorganic materials 0.000 claims 1
- 239000010970 precious metal Substances 0.000 claims 1
- 229910001404 rare earth metal oxide Inorganic materials 0.000 claims 1
- 150000003839 salts Chemical class 0.000 claims 1
- 239000000377 silicon dioxide Substances 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 239000000243 solution Substances 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- 230000007704 transition Effects 0.000 claims 1
- 229910052593 corundum Inorganic materials 0.000 abstract 2
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 2
- 229910003445 palladium oxide Inorganic materials 0.000 abstract 1
- 229910003450 rhodium oxide Inorganic materials 0.000 abstract 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
- 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/89—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals
- B01J23/8933—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals also combined with metals, or metal oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/894—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals also combined with metals, or metal oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with rare earths or actinides
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Combustion & Propulsion (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3835184A DE3835184A1 (de) | 1987-10-30 | 1988-10-15 | Platin-freier dreiwegkatalysator |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3736811 | 1987-10-30 | ||
| DE3835184A DE3835184A1 (de) | 1987-10-30 | 1988-10-15 | Platin-freier dreiwegkatalysator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3835184A1 true DE3835184A1 (de) | 1989-05-11 |
| DE3835184C2 DE3835184C2 (enrdf_load_stackoverflow) | 1992-01-23 |
Family
ID=25861289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE3835184A Granted DE3835184A1 (de) | 1987-10-30 | 1988-10-15 | Platin-freier dreiwegkatalysator |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE3835184A1 (enrdf_load_stackoverflow) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4316508A1 (de) * | 1992-07-30 | 1994-02-03 | Ngk Insulators Ltd | Katalysator zur Abgasreinigung und Verfahren zu seiner Herstellung |
| US5496788A (en) * | 1992-02-14 | 1996-03-05 | Degussa Aktiengesellschaft | Coating dispersion for exhaust gas catalysts |
| DE19547597A1 (de) * | 1995-12-20 | 1997-07-17 | Degussa | Monolithischer Katalysator für die Abgasreinigung |
| US5958829A (en) * | 1992-02-14 | 1999-09-28 | Degussa-Huls Aktiengesellschaft | Coating dispersion for exhaust gas catalysts |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19547599C2 (de) * | 1995-12-20 | 1999-02-25 | Degussa | Monolithischer Katalysator für die Abgasreinigung |
| DE102007019197A1 (de) * | 2007-04-20 | 2008-10-23 | Volkswagen Ag | Abgasnachbehandlung mit verringerter Rhodiumbeladung |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2758451A1 (de) * | 1977-01-06 | 1978-07-13 | Engelhard Min & Chem | Katalysator sowie verfahren zur herstellung und verwendung desselben |
| DE3223500A1 (de) * | 1982-06-24 | 1983-12-29 | Degussa Ag, 6000 Frankfurt | Katalysator zur reinigung der abgase von verbrennungskraftmaschinen, verfahren zur herstellung des katalysators und verwendung |
-
1988
- 1988-10-15 DE DE3835184A patent/DE3835184A1/de active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2758451A1 (de) * | 1977-01-06 | 1978-07-13 | Engelhard Min & Chem | Katalysator sowie verfahren zur herstellung und verwendung desselben |
| DE3223500A1 (de) * | 1982-06-24 | 1983-12-29 | Degussa Ag, 6000 Frankfurt | Katalysator zur reinigung der abgase von verbrennungskraftmaschinen, verfahren zur herstellung des katalysators und verwendung |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5496788A (en) * | 1992-02-14 | 1996-03-05 | Degussa Aktiengesellschaft | Coating dispersion for exhaust gas catalysts |
| US5958829A (en) * | 1992-02-14 | 1999-09-28 | Degussa-Huls Aktiengesellschaft | Coating dispersion for exhaust gas catalysts |
| DE4316508A1 (de) * | 1992-07-30 | 1994-02-03 | Ngk Insulators Ltd | Katalysator zur Abgasreinigung und Verfahren zu seiner Herstellung |
| US5439865A (en) * | 1992-07-30 | 1995-08-08 | Ngk Insulators, Ltd. | Catalyst for exhaust gas purification and process for production thereof |
| DE19547597A1 (de) * | 1995-12-20 | 1997-07-17 | Degussa | Monolithischer Katalysator für die Abgasreinigung |
| DE19547597C2 (de) * | 1995-12-20 | 1999-02-18 | Degussa | Monolithischer Katalysator für die Abgasreinigung |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3835184C2 (enrdf_load_stackoverflow) | 1992-01-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OP8 | Request for examination as to paragraph 44 patent law | ||
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |