ATE125725T1 - Mehrstufiges dreiwegkatalysatorsystem. - Google Patents
Mehrstufiges dreiwegkatalysatorsystem.Info
- Publication number
- ATE125725T1 ATE125725T1 AT91121443T AT91121443T ATE125725T1 AT E125725 T1 ATE125725 T1 AT E125725T1 AT 91121443 T AT91121443 T AT 91121443T AT 91121443 T AT91121443 T AT 91121443T AT E125725 T1 ATE125725 T1 AT E125725T1
- Authority
- AT
- Austria
- Prior art keywords
- stage
- palladium
- hydrocarbons
- rhodium
- mixture
- Prior art date
Links
- 239000003054 catalyst Substances 0.000 title abstract 6
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 abstract 9
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 abstract 9
- 239000010948 rhodium Substances 0.000 abstract 5
- 229930195733 hydrocarbon Natural products 0.000 abstract 4
- 150000002430 hydrocarbons Chemical class 0.000 abstract 4
- 239000000203 mixture Substances 0.000 abstract 4
- 229910052763 palladium Inorganic materials 0.000 abstract 4
- 229910052697 platinum Inorganic materials 0.000 abstract 4
- 229910052703 rhodium Inorganic materials 0.000 abstract 4
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 abstract 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 2
- 238000006243 chemical reaction Methods 0.000 abstract 2
- 239000000758 substrate Substances 0.000 abstract 2
- 229910021536 Zeolite Inorganic materials 0.000 abstract 1
- 229910021529 ammonia Inorganic materials 0.000 abstract 1
- 230000003197 catalytic effect Effects 0.000 abstract 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 229910000510 noble metal Inorganic materials 0.000 abstract 1
- 239000007800 oxidant agent Substances 0.000 abstract 1
- 239000010457 zeolite Substances 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
- B01D53/38—Removing components of undefined structure
-
- 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
- B01D53/9459—Removing one or more of nitrogen oxides, carbon monoxide, or hydrocarbons by multiple successive catalytic functions; systems with more than one different function, e.g. zone coated catalysts
-
- 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
- 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
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/10—Noble metals or compounds thereof
- B01D2255/102—Platinum group metals
- B01D2255/1021—Platinum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/10—Noble metals or compounds thereof
- B01D2255/102—Platinum group metals
- B01D2255/1023—Palladium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/10—Noble metals or compounds thereof
- B01D2255/102—Platinum group metals
- B01D2255/1025—Rhodium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/50—Zeolites
- B01D2255/504—ZSM 5 zeolites
-
- 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)
- Environmental & Geological Engineering (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Combustion & Propulsion (AREA)
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Dram (AREA)
- Hardware Redundancy (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Steering Control In Accordance With Driving Conditions (AREA)
- Control Of Multiple Motors (AREA)
- Train Traffic Observation, Control, And Security (AREA)
- Exhaust Gas After Treatment (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/703,201 US5168085A (en) | 1991-05-20 | 1991-05-20 | Multi-stage twc system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ATE125725T1 true ATE125725T1 (de) | 1995-08-15 |
Family
ID=24824440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT91121443T ATE125725T1 (de) | 1991-05-20 | 1991-12-13 | Mehrstufiges dreiwegkatalysatorsystem. |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US5168085A (de) |
| EP (1) | EP0514591B1 (de) |
| JP (1) | JPH0596133A (de) |
| KR (1) | KR920021198A (de) |
| AT (1) | ATE125725T1 (de) |
| AU (1) | AU648362B2 (de) |
| DE (1) | DE69111796T2 (de) |
| MX (1) | MX9200151A (de) |
Families Citing this family (42)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6869573B2 (en) * | 1990-11-09 | 2005-03-22 | Ngk Insulators, Ltd. | Heater and catalytic converter |
| US5384297A (en) * | 1991-05-08 | 1995-01-24 | Intevep, S.A. | Hydrocracking of feedstocks and catalyst therefor |
| US5744111A (en) * | 1992-07-03 | 1998-04-28 | Kabushiki Kaisha Riken | Method for cleaning exhaust gas |
| JP3300054B2 (ja) * | 1992-09-30 | 2002-07-08 | マツダ株式会社 | 排気ガス浄化用触媒 |
| US5934162A (en) | 1993-02-17 | 1999-08-10 | Habermehl; G. Lyle | Screwdriver with dual cam slot for collated screws |
| JP3440290B2 (ja) * | 1993-08-26 | 2003-08-25 | 独立行政法人産業技術総合研究所 | 排ガス浄化方法 |
| WO1997036669A1 (en) * | 1996-04-01 | 1997-10-09 | Asec Manufacturing | Methods of control of nitrogen oxide and hydrocarbon emissions from small engines |
| US5768888A (en) * | 1996-11-08 | 1998-06-23 | Matros Technologies, Inc. | Emission control system |
| KR100389900B1 (ko) * | 1996-11-29 | 2004-05-24 | 삼성전기주식회사 | 자동차 배기가스 정화용 촉매 |
| DE59805859D1 (de) * | 1997-03-07 | 2002-11-14 | Volkswagen Ag | Mehrstufiges Dreiwegkatalysatorsystem |
| GB9705010D0 (en) * | 1997-03-10 | 1997-04-30 | Johnson Matthey Plc | Improvements in emissions control systems |
| JP2002540918A (ja) * | 1998-07-10 | 2002-12-03 | エイエスイーシー・マニュファクチュアリング | 内燃エンジン排出ガス処理用の改善された触媒式吸着剤システム及びその製造方法 |
| MXPA01007820A (es) | 1999-02-04 | 2003-06-19 | Technion Res & Dev Foundation | Metodo y aparato para mantenimiento y expansion de celulas de tallo hemopoyeticas y/o celulas progenitoras. |
| US6387338B1 (en) | 2000-03-15 | 2002-05-14 | Delphi Technologies, Inc. | Preparation of multi-component Ce, Zr, Mox high oxygen-ion-conduct/oxygen-storage-capacity materials |
| US6461995B1 (en) * | 2000-05-08 | 2002-10-08 | Corning Incorporated | Extruded honeycomb dehydrogenation catalyst and method |
| US6750168B2 (en) | 2000-12-05 | 2004-06-15 | Delphi Technologies, Inc. | High-temperature aging tolerance catalyzed adsorber system for treating internal combustion engine exhaust gas |
| US7574796B2 (en) | 2002-10-28 | 2009-08-18 | Geo2 Technologies, Inc. | Nonwoven composites and related products and methods |
| US7572311B2 (en) | 2002-10-28 | 2009-08-11 | Geo2 Technologies, Inc. | Highly porous mullite particulate filter substrate |
| US7582270B2 (en) | 2002-10-28 | 2009-09-01 | Geo2 Technologies, Inc. | Multi-functional substantially fibrous mullite filtration substrates and devices |
| US6946013B2 (en) | 2002-10-28 | 2005-09-20 | Geo2 Technologies, Inc. | Ceramic exhaust filter |
| US20040254061A1 (en) * | 2003-06-12 | 2004-12-16 | Danan Dou | Diesel exhaust emissions control device and methods of making thereof |
| US7304013B2 (en) * | 2003-06-30 | 2007-12-04 | Corning Incorporated | Metal oxide catalysts |
| US7271125B2 (en) * | 2004-01-14 | 2007-09-18 | Engelhard Corporation | Coated metal substrate |
| US8352031B2 (en) | 2004-03-10 | 2013-01-08 | Impulse Dynamics Nv | Protein activity modification |
| JP2006075724A (ja) * | 2004-09-09 | 2006-03-23 | Toyota Motor Corp | 排ガス浄化用触媒 |
| US7451849B1 (en) | 2005-11-07 | 2008-11-18 | Geo2 Technologies, Inc. | Substantially fibrous exhaust screening system for motor vehicles |
| US7682577B2 (en) | 2005-11-07 | 2010-03-23 | Geo2 Technologies, Inc. | Catalytic exhaust device for simplified installation or replacement |
| US7211232B1 (en) | 2005-11-07 | 2007-05-01 | Geo2 Technologies, Inc. | Refractory exhaust filtering method and apparatus |
| US7682578B2 (en) | 2005-11-07 | 2010-03-23 | Geo2 Technologies, Inc. | Device for catalytically reducing exhaust |
| US7444805B2 (en) | 2005-12-30 | 2008-11-04 | Geo2 Technologies, Inc. | Substantially fibrous refractory device for cleaning a fluid |
| US7722828B2 (en) | 2005-12-30 | 2010-05-25 | Geo2 Technologies, Inc. | Catalytic fibrous exhaust system and method for catalyzing an exhaust gas |
| US7563415B2 (en) | 2006-03-03 | 2009-07-21 | Geo2 Technologies, Inc | Catalytic exhaust filter device |
| KR101490449B1 (ko) | 2006-03-23 | 2015-02-05 | 플루리스템 리미티드 | 세포 증식 방법 및 세포의 용도 및 치료를 위해 그 세포에 의해 제조되는 조절된 배지 |
| US20080120970A1 (en) | 2006-11-29 | 2008-05-29 | Marcus Hilgendorff | NOx Storage Materials and Traps Resistant to Thermal Aging |
| US8245500B2 (en) * | 2008-07-07 | 2012-08-21 | Delphi Technologies, Inc. | Dual catalyst NOx reduction system for exhaust from lean burn internal combustion engines |
| EP2397216A1 (de) | 2010-06-16 | 2011-12-21 | Tecogen, Inc. | Anordnung und Verfahren zur Reduktion von Stickstoffoxiden, Kohlenmonoxid und Kohlenwasserstoffen in Abgasen von Verbrennungsmotoren |
| US8578704B2 (en) | 2010-04-28 | 2013-11-12 | Tecogen, Inc. | Assembly and method for reducing nitrogen oxides, carbon monoxide and hydrocarbons in exhausts of internal combustion engines |
| US8101146B2 (en) * | 2011-04-08 | 2012-01-24 | Johnson Matthey Public Limited Company | Catalysts for the reduction of ammonia emission from rich-burn exhaust |
| KR101910685B1 (ko) | 2011-04-15 | 2018-10-22 | 플루리스템 리미티드 | 세포 수집 방법 및 시스템 |
| US10351910B2 (en) | 2013-02-20 | 2019-07-16 | Pluristem Ltd | Gene and protein expression properties of adherent stromal cells cultured in 3D |
| WO2014141111A1 (en) | 2013-03-14 | 2014-09-18 | Pluristem Ltd. | Methods for prevention and treatment of graft-versus-host disease |
| US12365066B2 (en) | 2020-10-14 | 2025-07-22 | Simpson Strong-Tie Company Inc. | Fastener installation systems and adapters |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE563757C (de) * | 1929-08-12 | |||
| US3801697A (en) * | 1972-03-02 | 1974-04-02 | Gulf Research Development Co | Process for reducing the content of nitrogen oxides in the exhaust gases from internal combustion engines |
| CA1073363A (en) * | 1975-11-24 | 1980-03-11 | Haren S. Gandhi | Segmented three-way catalyst |
| US4071600A (en) * | 1976-12-06 | 1978-01-31 | General Motors Corporation | Process for improved 3-way emission control |
| EP0003818A1 (de) * | 1978-02-23 | 1979-09-05 | Union Carbide Corporation | Behandlung von Abgasströmen |
| JPS6388040A (ja) * | 1986-09-30 | 1988-04-19 | Nippon Engeruharudo Kk | 車輌用排気ガス浄化用触媒及びその製造方法 |
| JPH01139144A (ja) * | 1987-11-25 | 1989-05-31 | Toyota Motor Corp | 排気浄化用触媒 |
| JPH01139145A (ja) * | 1987-11-25 | 1989-05-31 | Toyota Motor Corp | 排気浄化用触媒 |
| JPH01171625A (ja) * | 1987-12-26 | 1989-07-06 | Toyota Central Res & Dev Lab Inc | 排気浄化方法 |
| US4976929A (en) * | 1988-05-20 | 1990-12-11 | W. R. Grace & Co.-Conn. | Electrically heated catalytic converter |
| CA2011484C (en) * | 1989-04-19 | 1997-03-04 | Joseph C. Dettling | Palladium-containing, ceria-supported platinum catalyst and catalyst assembly including the same |
| JP2580326B2 (ja) * | 1989-06-03 | 1997-02-12 | 高木産業 株式会社 | 風呂装置 |
| JP2909553B2 (ja) * | 1989-10-18 | 1999-06-23 | トヨタ自動車株式会社 | 排気ガス浄化用触媒及び排気ガスの浄化方法 |
| US4973399A (en) * | 1989-11-03 | 1990-11-27 | Mobil Oil Corporation | Catalytic cracking of hydrocarbons |
| CA2032799C (en) * | 1989-12-21 | 1996-01-30 | Akinori Eshita | Catalyst for and method of purifying oxygen-excess exhaust gas |
| JP2931362B2 (ja) * | 1990-04-12 | 1999-08-09 | 日本碍子株式会社 | 抵抗調節型ヒーター及び触媒コンバーター |
-
1991
- 1991-05-20 US US07/703,201 patent/US5168085A/en not_active Expired - Lifetime
- 1991-12-11 AU AU88989/91A patent/AU648362B2/en not_active Ceased
- 1991-12-13 DE DE69111796T patent/DE69111796T2/de not_active Expired - Fee Related
- 1991-12-13 AT AT91121443T patent/ATE125725T1/de not_active IP Right Cessation
- 1991-12-13 EP EP91121443A patent/EP0514591B1/de not_active Expired - Lifetime
- 1991-12-31 KR KR1019910025984A patent/KR920021198A/ko not_active Abandoned
-
1992
- 1992-01-14 MX MX9200151A patent/MX9200151A/es unknown
- 1992-03-30 JP JP4071901A patent/JPH0596133A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| EP0514591A1 (de) | 1992-11-25 |
| DE69111796D1 (de) | 1995-09-07 |
| MX9200151A (es) | 1993-01-01 |
| JPH0596133A (ja) | 1993-04-20 |
| KR920021198A (ko) | 1992-12-18 |
| AU8898991A (en) | 1992-11-26 |
| US5168085A (en) | 1992-12-01 |
| DE69111796T2 (de) | 1996-04-18 |
| AU648362B2 (en) | 1994-04-21 |
| EP0514591B1 (de) | 1995-08-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |