MXPA04002547A - Catalizador de conversion/ que atrapa nox pobres. - Google Patents

Catalizador de conversion/ que atrapa nox pobres.

Info

Publication number
MXPA04002547A
MXPA04002547A MXPA04002547A MXPA04002547A MXPA04002547A MX PA04002547 A MXPA04002547 A MX PA04002547A MX PA04002547 A MXPA04002547 A MX PA04002547A MX PA04002547 A MXPA04002547 A MX PA04002547A MX PA04002547 A MXPA04002547 A MX PA04002547A
Authority
MX
Mexico
Prior art keywords
nitrogen oxides
exhaust gas
composition
adsorbent
alkaline earth
Prior art date
Application number
MXPA04002547A
Other languages
English (en)
Inventor
Koo Kwangmo
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
Publication of MXPA04002547A publication Critical patent/MXPA04002547A/es

Links

Classifications

    • 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
    • B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/78—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with alkali- or alkaline earth metals
    • 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
    • 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
    • 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
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/202—Alkali metals
    • B01D2255/2022—Potassium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20746—Cobalt
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/90—Physical characteristics of catalysts
    • B01D2255/91—NOx-storage component incorporated in the 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
    • B01D53/944—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
    • 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)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Treating Waste Gases (AREA)

Abstract

Un procedimiento y composicion para la conversion de oxidos de nitrogeno presentes en los gases de salida producidos. por un motor de combustion interna, que utiliza cobalto y al menos un metal alcalino o un metal alcalino terreo como un componente de un adsorbente. El procedimiento se refiere a poner en contacto al gas de salida con un adsorbente el cual absorbe los oxidos de nitrogeno en condiciones de quemado pobre y que reduce recurrentemente la concentracion de oxigeno, del gas de salida. Durante tales periodos de la concentracion del oxigeno reducido, y de los oxidos de nitrogeno luego son des-absorbidos y reducidos a nitrogeno, con lo cual se reduce la concentracion de los oxidos de nitrogeno en el gas de salida. La composicion del gas absorbente comprende y el soporte del oxido y al menos dos componente cargados sobre el soporte y que contiene cobalto y al menos un metal alcalino o metal alcalino terreo. La composicion demuestra la actividad mejorada a temperaturas mas elevadas y la estabilidad termica mejorada.
MXPA04002547A 2001-09-19 2002-09-17 Catalizador de conversion/ que atrapa nox pobres. MXPA04002547A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/956,424 US6756338B2 (en) 2001-09-19 2001-09-19 Lean NOx trap/conversion catalyst
PCT/GB2002/004217 WO2003024571A1 (en) 2001-09-19 2002-09-17 LEAN NOx TRAP/CONVERSION CATALYST

Publications (1)

Publication Number Publication Date
MXPA04002547A true MXPA04002547A (es) 2004-07-30

Family

ID=25498229

Family Applications (1)

Application Number Title Priority Date Filing Date
MXPA04002547A MXPA04002547A (es) 2001-09-19 2002-09-17 Catalizador de conversion/ que atrapa nox pobres.

Country Status (13)

Country Link
US (3) US6756338B2 (es)
EP (1) EP1427514A1 (es)
JP (1) JP2005503253A (es)
KR (1) KR20040044947A (es)
CN (1) CN1301781C (es)
AU (1) AU2002324209B2 (es)
BR (1) BR0212561A (es)
CA (1) CA2495983A1 (es)
MX (1) MXPA04002547A (es)
NO (1) NO20041126L (es)
NZ (1) NZ531768A (es)
PL (1) PL368235A1 (es)
WO (1) WO2003024571A1 (es)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101225517B1 (ko) * 2002-09-13 2013-01-23 존슨 맛쎄이 퍼블릭 리미티드 컴파니 압축 점화 엔진 및 그것을 위한 배기 시스템
JP2005066559A (ja) * 2003-08-28 2005-03-17 Mitsubishi Heavy Ind Ltd 排ガス処理触媒および排ガス処理方法
JP4746264B2 (ja) * 2003-11-17 2011-08-10 三井金属鉱業株式会社 内燃機関の排気ガス浄化触媒および排気ガス浄化装置
US8115373B2 (en) 2005-07-06 2012-02-14 Rochester Institute Of Technology Self-regenerating particulate trap systems for emissions and methods thereof
KR100809661B1 (ko) * 2006-10-04 2008-03-05 희성촉매 주식회사 Ｎｏ２ 생성 억제 촉매
EP1916029B1 (en) * 2006-10-23 2014-06-04 Haldor Topsoe A/S Method and apparatus for the purifiction of exhaust gas from a compression ignition engine
US9283548B2 (en) 2013-11-19 2016-03-15 Toyota Motor Engineering & Manufacturing North America, Inc. Ceria-supported metal catalysts for the selective reduction of NOx
EP3119500A4 (en) * 2014-03-21 2017-12-13 SDC Materials, Inc. Compositions for passive nox adsorption (pna) systems
US9744529B2 (en) 2014-03-21 2017-08-29 Basf Corporation Integrated LNT-TWC catalyst
CN113351152A (zh) * 2021-04-24 2021-09-07 化学与精细化工广东省实验室 一种氮氧化物吸收复合材料

Family Cites Families (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4071600A (en) * 1976-12-06 1978-01-31 General Motors Corporation Process for improved 3-way emission control
US4675308A (en) * 1984-06-14 1987-06-23 Engelhard Corporation Three-way catalyst for lean operating engines
JPS6380850A (ja) 1986-09-25 1988-04-11 Toyota Motor Corp 排ガス浄化用触媒
US5158582A (en) * 1988-05-30 1992-10-27 Hitachi Zosen Corporation Method of removing NOx by adsorption, NOx adsorbent and apparatus for purifying NOx-containing gas
US5075274A (en) * 1989-03-15 1991-12-24 Kabushiki Kaisha Riken Exhaust gas cleaner
JPH04267707A (ja) * 1990-12-29 1992-09-24 Kooei:Kk テープへの部品実装装置
JPH0741142B2 (ja) * 1991-06-11 1995-05-10 川崎重工業株式会社 道路トンネル換気ガス中の低濃度窒素酸化物の除去方法
ES2104943T5 (es) * 1991-10-03 2005-04-16 Toyota Jidosha Kabushiki Kaisha Dispositivo de purificacion de los gases de escape de un motor de combustion interna.
EP0666099B1 (en) * 1993-04-28 2001-07-18 Nippon Shokubai Co., Ltd. Method of removing nitrogen oxides contained in exhaust gas
US5451558A (en) * 1994-02-04 1995-09-19 Goal Line Environmental Technologies Process for the reaction and absorption of gaseous air pollutants, apparatus therefor and method of making the same
EP0666102B1 (en) 1994-02-04 2001-11-07 Toyota Jidosha Kabushiki Kaisha Process for producing an exhaust gas purification catalyst
JP3363564B2 (ja) * 1994-02-04 2003-01-08 トヨタ自動車株式会社 排ガス浄化用触媒
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
JP3362546B2 (ja) * 1995-03-10 2003-01-07 トヨタ自動車株式会社 排ガス浄化用触媒
US6471924B1 (en) 1995-07-12 2002-10-29 Engelhard Corporation Method and apparatus for NOx abatement in lean gaseous streams
US5837212A (en) 1995-09-21 1998-11-17 Ford Global Technologies, Inc. Potassium/manganese nitrogen oxide traps for lean-burn engine operation
US5750082A (en) 1995-09-21 1998-05-12 Ford Global Technologies, Inc. Nox trap with improved performance
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
JP3498453B2 (ja) * 1995-11-27 2004-02-16 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
US5727385A (en) 1995-12-08 1998-03-17 Ford Global Technologies, Inc. Lean-burn nox catalyst/nox trap system
GB9615123D0 (en) 1996-07-18 1996-09-04 Johnson Matthey Plc Three-way conversion catalysts and methods for the preparation therof
JP3965711B2 (ja) 1996-10-25 2007-08-29 株式会社日立製作所 窒素酸化物の浄化触媒及び浄化方法
US5753192A (en) 1996-11-29 1998-05-19 Ford Global Technologies, Inc. Zirconia and sulfate in NOx traps to improved trapping and sulfur tolerance
US6165429A (en) 1997-01-10 2000-12-26 Toyota Jidosha Kabushiki Kaisha Exhaust gas purifying catalyst and exhaust gas purifying method
US5939037A (en) 1997-02-07 1999-08-17 Ford Global Technologies, Inc. Sulfur tolerant NOx traps highly loaded with sodium or potassium
JPH10286461A (ja) 1997-04-16 1998-10-27 Daihatsu Motor Co Ltd 排気ガス浄化触媒
GB9713428D0 (en) * 1997-06-26 1997-08-27 Johnson Matthey Plc Improvements in emissions control
FR2771306B1 (fr) 1997-11-25 2000-02-04 Rhodia Chimie Sa Composition a base de manganese et utilisation comme piege a nox pour le traitement de gaz d'echappement
JP3741303B2 (ja) 1997-12-08 2006-02-01 トヨタ自動車株式会社 排ガス浄化用触媒
GB9800325D0 (en) * 1998-01-09 1998-03-04 Johnson Matthey Plc Improvements in catalytic materials
US6350421B1 (en) * 1998-08-24 2002-02-26 Dmc2 Degussa Metals Catalysts Cerdec Ag Nitrogen oxide storage material and nitrogen oxide storing catalyst prepared therefrom
DE19838282A1 (de) 1998-08-24 2000-03-02 Degussa Stickoxid-Speichermaterial und daraus hergestellter Stickoxid-Speicherkatalysator
DE19847008A1 (de) 1998-10-13 2000-04-20 Degussa Stickoxid-Speicherkatalysator
US6182443B1 (en) * 1999-02-09 2001-02-06 Ford Global Technologies, Inc. Method for converting exhaust gases from a diesel engine using nitrogen oxide absorbent
DE19908023A1 (de) 1999-02-25 2000-08-31 Dornier Gmbh Verfahren und Element zur Speicherung von in einem Gas enthaltenen Stickoxiden
US20020048542A1 (en) 1999-04-02 2002-04-25 Michel Deeba Catalytic trap and methods of making and using the same
US6375910B1 (en) * 1999-04-02 2002-04-23 Engelhard Corporation Multi-zoned catalytic trap and methods of making and using the same
FR2792547B1 (fr) 1999-04-23 2001-07-06 Rhodia Chimie Sa COMPOSITION UTILISABLE COMME PIEGE A NOx, A BASE DE MANGANESE ET D'UN ALCALINO-TERREUX OU D'UNE TERRE RARE ET UTILISATION DANS LE TRAITEMENT DES GAZ D'ECHAPPEMENT
FR2793163B1 (fr) 1999-05-07 2001-08-10 Ecia Equip Composants Ind Auto Composition d'epuration avec traitement des nox des gaz d'echappement d'un moteur a combustion interne
US6419890B1 (en) * 2000-08-09 2002-07-16 Engelhard Corporation SOX tolerant NOX trap catalysts and methods of making and using the same
GB0022786D0 (en) * 2000-09-16 2000-11-01 Johnson Matthey Plc NOx-Trap composition
DE60139569D1 (de) * 2000-11-06 2009-09-24 Corning Inc Katalysator zur reinigung von abgasen
US20020103078A1 (en) * 2001-01-26 2002-08-01 Zhicheng Hu SOx trap for enhancing NOx trap performance and methods of making and using the same
US6699448B2 (en) * 2001-01-26 2004-03-02 Engelhard Corporation SOx tolerant NOx trap catalysts and methods of making and using the same

Also Published As

Publication number Publication date
EP1427514A1 (en) 2004-06-16
AU2002324209B2 (en) 2007-03-01
JP2005503253A (ja) 2005-02-03
US7682583B2 (en) 2010-03-23
CN1301781C (zh) 2007-02-28
CN1556730A (zh) 2004-12-22
BR0212561A (pt) 2004-12-28
KR20040044947A (ko) 2004-05-31
US6756338B2 (en) 2004-06-29
NO20041126L (no) 2004-04-20
CA2495983A1 (en) 2003-03-27
NZ531768A (en) 2005-08-26
US20030059358A1 (en) 2003-03-27
US20100178224A1 (en) 2010-07-15
US20040258593A1 (en) 2004-12-23
WO2003024571A1 (en) 2003-03-27
PL368235A1 (en) 2005-03-21

Similar Documents

Publication Publication Date Title
GB0620883D0 (en) Exhaust system for a lean-burn internal combustion engine
JP4894954B2 (ja) 内燃機関の排気浄化システム
NO20053881D0 (no) Katalytisk metode for reduksjon av nitrogenoksider i avgass, og sammensetning av reduksjonsmiddelet
MXPA01011203A (es) Unidad de tratamiento de gases de escape para la reduccion catalitica selectiva de oxidos de nitrogeno en condiciones de gases de escape pobres y un proceso para el tratamiento de gases de escape.
WO2006041715A3 (en) Reducing nox emissions with a staged catalyst
CA2329994A1 (en) Process and apparatus for reducing the nitrogen oxide content in exhaust gases by the controlled addition of nh3
WO2007008320A3 (en) Improved sulfur oxide/nitrogen oxide trap system and method for the protection of nitrogen oxide storage reduction catalyst from sulfur poisoning
WO2007055938A3 (en) Selective catalyst reduction of nitrogen oxides with hydrogen
GB0220645D0 (en) Exhaust system for a lean burn ic engine
WO2006088634A3 (en) Ammonia oxidation catalyst for the coal fired utilities
WO2002058819A3 (en) So$g(x) tolerant no$g(x) trap catalysts and methods of making and using the same
DK0830201T3 (da) System til rensning af udstødsgas fra dieselmotorer
WO2007107371A3 (de) Oxidationskatalysator für die entfernung von schadstoffen aus mageren verbrennungsmotoren und ablüften
JP2014224525A (ja) 定置式のリッチバーンエンジンの中で同時に排出物を制御するための後処理システム
EP4238650A3 (en) Lean nox trap with enhanced high and low temperature performance
WO2009060822A1 (ja) 内燃機関の排気浄化装置及び排気浄化方法
EP1166858A3 (en) Exhaust gas purification catalyst and exhaust gas purification system
DE60223049D1 (de) Verfahren zur Aufbereitung eines gebrauchten Katalysators
WO2008022751A3 (de) Verfahren zum betreiben einer abgasreinigungsanlage an einem mager betriebenen ottomotor
MXPA04002547A (es) Catalizador de conversion/ que atrapa nox pobres.
GB201017870D0 (en) NOx Storage component
CA2506468A1 (en) Exhaust gas purifying catalyst and method for purifying exhaust gas
WO2011040787A3 (ko) 고흡장성 혼합금속산화물 촉매를 통한 희박 질소산화물 분해처리 방법
CA2525808A1 (en) Catalyst for purifying exhaust gases and method of evaluating low-temperature purifying ability of the same
US7670577B2 (en) Method for operating a nitrogen oxide storage catalyst in a diesel engine

Legal Events

Date Code Title Description
FG Grant or registration