DK1007190T3 - Katalytisk konverter for en lean burn-motor med intern forbrænding - Google Patents

Katalytisk konverter for en lean burn-motor med intern forbrænding

Info

Publication number
DK1007190T3
DK1007190T3 DK98930931T DK98930931T DK1007190T3 DK 1007190 T3 DK1007190 T3 DK 1007190T3 DK 98930931 T DK98930931 T DK 98930931T DK 98930931 T DK98930931 T DK 98930931T DK 1007190 T3 DK1007190 T3 DK 1007190T3
Authority
DK
Denmark
Prior art keywords
internal combustion
catalytic converter
lean burn
burn engine
catalyzing
Prior art date
Application number
DK98930931T
Other languages
English (en)
Inventor
Mark Brogan
Robert James Brisley
Antony David Clark
Original Assignee
Johnson Matthey Plc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Johnson Matthey Plc filed Critical Johnson Matthey Plc
Application granted granted Critical
Publication of DK1007190T3 publication Critical patent/DK1007190T3/da

Links

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
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9404—Removing only nitrogen compounds
    • B01D53/9409—Nitrogen oxides
    • B01D53/9413—Processes characterised by a specific catalyst
    • B01D53/9422—Processes characterised by a specific catalyst for removing nitrogen oxides by NOx storage or reduction by cyclic switching between lean and rich exhaust gases (LNT, NSC, NSR)
    • 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
    • B01J23/58—Platinum group metals with alkali- or alkaline earth 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
    • 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
    • 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
    • B01D2255/1025—Rhodium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/204—Alkaline earth metals
    • B01D2255/2042—Barium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/50—Zeolites
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/90—Physical characteristics of catalysts
    • B01D2255/902—Multilayered catalyst
    • B01D2255/9022—Two layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/90—Physical characteristics of catalysts
    • B01D2255/912—HC-storage component incorporated in the catalyst
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/01—Engine exhaust gases
    • B01D2258/012—Diesel engines and lean burn gasoline engines
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Materials Engineering (AREA)
  • Analytical Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Catalysts (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)
  • Testing Of Engines (AREA)
DK98930931T 1997-06-26 1998-06-24 Katalytisk konverter for en lean burn-motor med intern forbrænding DK1007190T3 (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB9713428.2A GB9713428D0 (en) 1997-06-26 1997-06-26 Improvements in emissions control

Publications (1)

Publication Number Publication Date
DK1007190T3 true DK1007190T3 (da) 2004-09-20

Family

ID=10814919

Family Applications (1)

Application Number Title Priority Date Filing Date
DK98930931T DK1007190T3 (da) 1997-06-26 1998-06-24 Katalytisk konverter for en lean burn-motor med intern forbrænding

Country Status (9)

Country Link
US (1) US6413483B1 (da)
EP (1) EP1007190B1 (da)
JP (1) JP4187800B2 (da)
AT (1) ATE274369T1 (da)
AU (1) AU8120798A (da)
DE (1) DE69825908T2 (da)
DK (1) DK1007190T3 (da)
GB (1) GB9713428D0 (da)
WO (1) WO1999000177A1 (da)

Families Citing this family (60)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4438114B2 (ja) * 1999-01-14 2010-03-24 株式会社日立製作所 内燃機関の排ガス浄化方法，排ガス浄化触媒及び排ガス浄化装置
AUPQ272299A0 (en) * 1999-09-08 1999-09-30 Orbital Engine Company (Australia) Proprietary Limited Exhaust gas treatment method and device
FI118326B (fi) * 2000-04-10 2007-10-15 Ecocat Oy Adsorbenttikatalyytti
JP3797081B2 (ja) * 2000-09-08 2006-07-12 トヨタ自動車株式会社 吸収還元型ＮＯｘ浄化用触媒
GB0022786D0 (en) 2000-09-16 2000-11-01 Johnson Matthey Plc NOx-Trap composition
GB0028198D0 (en) * 2000-11-20 2001-01-03 Johnson Matthey Plc High temperature nox-trap component
US6756338B2 (en) * 2001-09-19 2004-06-29 Johnson Matthey Public Limited Company Lean NOx trap/conversion catalyst
US6764665B2 (en) 2001-10-26 2004-07-20 Engelhard Corporation Layered catalyst composite
US7832203B2 (en) * 2001-10-27 2010-11-16 Johnson Matthey Public Limited Company Exhaust system for a lean burn internal combustion engine
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
JP3758601B2 (ja) * 2002-05-15 2006-03-22 トヨタ自動車株式会社 吸蔵還元型ＮＯｘ浄化用触媒
GB0211971D0 (en) 2002-05-24 2002-07-03 Johnson Matthey Plc Spark ignition engine including three-way catalyst
JP4757027B2 (ja) * 2003-11-11 2011-08-24 本田技研工業株式会社 窒素酸化物素酸化物を接触還元するための触媒
JP4740217B2 (ja) * 2003-11-11 2011-08-03 本田技研工業株式会社 窒素酸化物を接触還元する方法
US7238640B2 (en) * 2003-12-30 2007-07-03 Ford Global Technologies, Llc Minimization of purge NOx release from NOx traps by optimizing the oxygen storage capacity
DE102004024026A1 (de) * 2004-03-11 2005-09-29 W.C. Heraeus Gmbh Katalysator zur N2O-Zersetzung beim Ostwaldprozess
JP2005305338A (ja) * 2004-04-22 2005-11-04 Toyota Motor Corp 排ガス浄化触媒及びその製造方法
JP4696546B2 (ja) * 2004-12-10 2011-06-08 マツダ株式会社 排気ガス浄化用触媒
US8115373B2 (en) 2005-07-06 2012-02-14 Rochester Institute Of Technology Self-regenerating particulate trap systems for emissions and methods thereof
JP4714568B2 (ja) * 2005-11-22 2011-06-29 マツダ株式会社 排気ガス浄化用触媒及びその製造方法
JP2007136420A (ja) * 2005-11-22 2007-06-07 Mazda Motor Corp 排気ガス浄化用触媒及びその製造方法
JP4851190B2 (ja) * 2006-01-13 2012-01-11 戸田工業株式会社 排気ガス浄化用触媒
FR2901155B1 (fr) * 2006-05-16 2008-10-10 Rhodia Recherches & Tech Compositions utilisees notamment pour le piegeage d'oxydes d'azote (nox)
DE202007019615U1 (de) * 2006-06-29 2014-05-20 Umicore Ag & Co. Kg Dreiweg-Katalysator
JP4463248B2 (ja) * 2006-07-31 2010-05-19 本田技研工業株式会社 ＮＯｘ低減化システムの制御方法
WO2008090991A1 (ja) * 2007-01-26 2008-07-31 Cataler Corporation 排ガス浄化用触媒
US8007750B2 (en) * 2007-07-19 2011-08-30 Basf Corporation Multilayered catalyst compositions
ATE457813T1 (de) * 2007-09-28 2010-03-15 Umicore Ag & Co Kg Entfernung von partikeln aus dem abgas von mit überwiegend stöchiometrischem luft/kraftstoff- gemisch betriebenen verbrennungsmotoren
JP5024883B2 (ja) * 2008-02-06 2012-09-12 トヨタ自動車株式会社 排ガス浄化用触媒
MX2010013929A (es) 2008-06-20 2011-01-21 Procter & Gamble Envase de pelicula en espuma.
US8475752B2 (en) * 2008-06-27 2013-07-02 Basf Corporation NOx adsorber catalyst with superior low temperature performance
CN102256701B (zh) * 2008-12-19 2014-04-09 株式会社科特拉 废气净化用催化剂
WO2011114499A1 (ja) 2010-03-15 2011-09-22 トヨタ自動車株式会社 内燃機関の排気浄化装置
CA2755977C (en) 2010-03-15 2014-01-21 Toyota Jidosha Kabushiki Kaisha Exhaust purification system of internal combustion engine
US9032711B2 (en) 2010-04-01 2015-05-19 Toyota Jidosha Kabushiki Kaisha Exhaust purification system of internal combustion engine
CN103097021B (zh) * 2010-06-10 2015-03-11 巴斯夫欧洲公司 具有降低的Rh载荷的NOx存储催化剂
EP3403722A1 (en) * 2010-06-10 2018-11-21 Basf Se Nox storage catalyst with improved hydrocarbon conversion activity
US8734743B2 (en) * 2010-06-10 2014-05-27 Basf Se NOx storage catalyst with improved hydrocarbon conversion activity
CN102985647B (zh) * 2010-07-28 2015-06-03 丰田自动车株式会社 内燃机的排气净化装置
CN103003539B (zh) 2010-08-30 2015-03-18 丰田自动车株式会社 内燃机的排气净化装置
JP5067511B2 (ja) 2010-08-30 2012-11-07 トヨタ自動車株式会社 内燃機関の排気浄化装置
CN103154455B (zh) 2010-10-04 2015-07-15 丰田自动车株式会社 内燃机的排气净化装置
US9034267B2 (en) 2010-10-04 2015-05-19 Toyota Jidosha Kabushiki Kaisha Exhaust purification system of internal combustion engine
EP2617959B1 (en) 2010-10-18 2019-03-20 Toyota Jidosha Kabushiki Kaisha Nox purification method of an exhaust purification system of an internal combustion engine
WO2012077240A1 (ja) 2010-12-06 2012-06-14 トヨタ自動車株式会社 内燃機関の排気浄化装置
EP2495410B1 (en) 2010-12-20 2020-02-12 Toyota Jidosha Kabushiki Kaisha Exhaust gas purification method for an internal combustion engine
BRPI1014480B1 (pt) 2010-12-24 2022-02-22 Toyota Jidosha Kabushiki Kaisha Sistema de purificação do escapamento de motor de combustão interna
CN102753794B (zh) 2011-02-07 2015-05-13 丰田自动车株式会社 内燃机的排气净化装置
CN103348102B (zh) 2011-02-10 2016-01-20 丰田自动车株式会社 内燃机的排气净化装置
WO2012124173A1 (ja) 2011-03-17 2012-09-20 トヨタ自動車株式会社 内燃機関の排気浄化装置
EP2532852B1 (en) 2011-04-15 2016-08-24 Toyota Jidosha Kabushiki Kaisha Exhaust purification method of internal combustion engine
CN103998731B (zh) 2011-11-07 2016-11-16 丰田自动车株式会社 内燃机的排气净化装置
EP2626529B1 (en) 2011-11-09 2015-10-21 Toyota Jidosha Kabushiki Kaisha Exhaust purification device for internal combustion engine
EP2626528B1 (en) 2011-11-30 2016-10-26 Toyota Jidosha Kabushiki Kaisha Exhaust purification device for internal combustion engine
JP5273303B1 (ja) 2011-11-30 2013-08-28 トヨタ自動車株式会社 内燃機関の排気浄化装置
JP5392411B1 (ja) 2012-02-07 2014-01-22 トヨタ自動車株式会社 内燃機関の排気浄化装置
JP6027241B2 (ja) * 2013-07-08 2016-11-16 ユミコア日本触媒株式会社 窒素酸化物除去用触媒
BR112017016618A2 (pt) * 2015-02-05 2018-04-03 Johnson Matthey Plc composição e artigo de catalisador de três vias, sistema de escape, e, método para tratamento de um gás de escape.
JP6700290B2 (ja) * 2015-02-06 2020-05-27 ジョンソン、マッセイ、パブリック、リミテッド、カンパニーＪｏｈｎｓｏｎ Ｍａｔｔｈｅｙ Ｐｕｂｌｉｃ Ｌｉｍｉｔｅｄ Ｃｏｍｐａｎｙ 三元触媒及び排気システムにおけるその使用
US9855547B2 (en) * 2015-10-05 2018-01-02 GM Global Technology Operations LLC Low-temperature oxidation catalysts

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4128506A (en) * 1978-01-23 1978-12-05 General Motors Corporation Platinum-rhodium catalyst for automotive emission control
JPH03196841A (ja) * 1989-12-26 1991-08-28 Nok Corp 排気ガス浄化用触媒
US5254519A (en) * 1990-02-22 1993-10-19 Engelhard Corporation Catalyst composition containing platinum and rhodium components
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
JP3157556B2 (ja) * 1991-09-24 2001-04-16 マツダ株式会社 排気ガス浄化用触媒装置
KR960002348B1 (ko) 1991-10-03 1996-02-16 도요다 지도오샤 가부시끼가이샤 내연기관의 배기정화장치
US5473890A (en) * 1992-12-03 1995-12-12 Toyota Jidosha Kabushiki Kaisha Exhaust purification device of internal combustion engine
JP3281087B2 (ja) 1993-02-10 2002-05-13 日本碍子株式会社 排ガス浄化用触媒
DE69435061T2 (de) * 1993-06-25 2008-12-18 Basf Catalysts Llc Katalysatorzusammensetzung
JPH0760117A (ja) * 1993-08-30 1995-03-07 Honda Motor Co Ltd 排気ガス浄化用触媒
JP3291086B2 (ja) 1993-09-24 2002-06-10 トヨタ自動車株式会社 排ガス浄化用触媒及び排ガス浄化方法
EP0664147B1 (en) 1994-01-20 1998-07-22 Toyota Jidosha Kabushiki Kaisha Catalyst for purifying exhaust gases
JP3391878B2 (ja) 1994-02-23 2003-03-31 トヨタ自動車株式会社 排気ガス浄化用触媒
WO1995035152A1 (en) * 1994-06-17 1995-12-28 Engelhard Corporation Layered catalyst composite
JPH0857315A (ja) * 1994-08-26 1996-03-05 Toyota Central Res & Dev Lab Inc 排ガス浄化用触媒
JP3532979B2 (ja) * 1994-11-25 2004-05-31 株式会社豊田中央研究所 排ガス浄化用触媒
JP3358766B2 (ja) * 1994-12-16 2002-12-24 トヨタ自動車株式会社 排ガス浄化用触媒
JPH08281107A (ja) * 1995-04-11 1996-10-29 Nissan Motor Co Ltd 排気ガス浄化用触媒
JP3861303B2 (ja) 1995-10-31 2006-12-20 トヨタ自動車株式会社 排ガス浄化用触媒
GB9612970D0 (en) 1996-06-20 1996-08-21 Johnson Matthey Plc Combatting air pollution
US6051529A (en) * 1998-12-10 2000-04-18 W. R. Grace & Co.-Conn. Ceric oxide washcoat

Also Published As

Publication number Publication date
DE69825908T2 (de) 2005-09-08
JP4187800B2 (ja) 2008-11-26
US6413483B1 (en) 2002-07-02
EP1007190A1 (en) 2000-06-14
GB9713428D0 (en) 1997-08-27
JP2002506500A (ja) 2002-02-26
EP1007190B1 (en) 2004-08-25
WO1999000177A1 (en) 1999-01-07
AU8120798A (en) 1999-01-19
ATE274369T1 (de) 2004-09-15
DE69825908D1 (de) 2004-09-30

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