ATE274369T1 - Katalysators für brennkraftmaschine mit magergemischverbrennung - Google Patents

Katalysators für brennkraftmaschine mit magergemischverbrennung

Info

Publication number
ATE274369T1
ATE274369T1 AT98930931T AT98930931T ATE274369T1 AT E274369 T1 ATE274369 T1 AT E274369T1 AT 98930931 T AT98930931 T AT 98930931T AT 98930931 T AT98930931 T AT 98930931T AT E274369 T1 ATE274369 T1 AT E274369T1
Authority
AT
Austria
Prior art keywords
lean
catalyst
mixture combustion
international engine
international
Prior art date
Application number
AT98930931T
Other languages
English (en)
Inventor
Robert James Brisley
Mark Brogan
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 ATE274369T1 publication Critical patent/ATE274369T1/de

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)
  • Oil, Petroleum & Natural Gas (AREA)
  • Materials Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Biomedical Technology (AREA)
  • Organic Chemistry (AREA)
  • Catalysts (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Testing Of Engines (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)
AT98930931T 1997-06-26 1998-06-24 Katalysators für brennkraftmaschine mit magergemischverbrennung ATE274369T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9713428.2A GB9713428D0 (en) 1997-06-26 1997-06-26 Improvements in emissions control
PCT/GB1998/001838 WO1999000177A1 (en) 1997-06-26 1998-06-24 Catalytic converter for a lean burn internal combustion engine

Publications (1)

Publication Number Publication Date
ATE274369T1 true ATE274369T1 (de) 2004-09-15

Family

ID=10814919

Family Applications (1)

Application Number Title Priority Date Filing Date
AT98930931T ATE274369T1 (de) 1997-06-26 1998-06-24 Katalysators für brennkraftmaschine mit magergemischverbrennung

Country Status (9)

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

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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
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
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US8475752B2 (en) * 2008-06-27 2013-07-02 Basf Corporation NOx adsorber catalyst with superior low temperature performance
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BR112012031341A2 (pt) * 2010-06-10 2016-11-08 Basf Se catalisador de armazenagem de óxido de nitrogênio, sistema de tratamento para uma corrente de gás de escape de automóvel, método para o tratamento de gás de escape de motor de automóvel, e, método para produzir um catalisador de armazenagem de óxido de nitrogênio
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BRPI1010835B8 (pt) 2010-12-20 2021-01-12 Toyota Motor Co Ltd sistema de purificação de exaustão de motor de combustão interna
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JP5131394B2 (ja) 2011-02-10 2013-01-30 トヨタ自動車株式会社 内燃機関の排気浄化装置
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
WO2012140784A1 (ja) 2011-04-15 2012-10-18 トヨタ自動車株式会社 内燃機関の排気浄化装置
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
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WO2013080328A1 (ja) 2011-11-30 2013-06-06 トヨタ自動車株式会社 内燃機関の排気浄化装置
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Also Published As

Publication number Publication date
JP4187800B2 (ja) 2008-11-26
US6413483B1 (en) 2002-07-02
DK1007190T3 (da) 2004-09-20
EP1007190A1 (de) 2000-06-14
AU8120798A (en) 1999-01-19
GB9713428D0 (en) 1997-08-27
EP1007190B1 (de) 2004-08-25
DE69825908T2 (de) 2005-09-08
WO1999000177A1 (en) 1999-01-07
DE69825908D1 (de) 2004-09-30
JP2002506500A (ja) 2002-02-26

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