WO2008090991A9 - 排ガス浄化用触媒 - Google Patents

排ガス浄化用触媒 Download PDF

Info

Publication number
WO2008090991A9
WO2008090991A9 PCT/JP2008/051124 JP2008051124W WO2008090991A9 WO 2008090991 A9 WO2008090991 A9 WO 2008090991A9 JP 2008051124 W JP2008051124 W JP 2008051124W WO 2008090991 A9 WO2008090991 A9 WO 2008090991A9
Authority
WO
WIPO (PCT)
Prior art keywords
exhaust gas
gas purifying
catalyst
purifying catalyst
component
Prior art date
Application number
PCT/JP2008/051124
Other languages
English (en)
French (fr)
Other versions
WO2008090991A1 (ja
Inventor
Hiroto Imai
Original Assignee
Cataler Corp
Hiroto Imai
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 Cataler Corp, Hiroto Imai filed Critical Cataler Corp
Priority to EP08703936A priority Critical patent/EP2116299A4/en
Priority to JP2008555119A priority patent/JP5113082B2/ja
Priority to US12/524,352 priority patent/US8496899B2/en
Publication of WO2008090991A1 publication Critical patent/WO2008090991A1/ja
Publication of WO2008090991A9 publication Critical patent/WO2008090991A9/ja

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
    • 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
    • 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
    • B01J23/58—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
    • 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
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/19—Catalysts containing parts with different compositions
    • 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
    • B01D2255/202—Alkali metals
    • 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
    • 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
    • B01D2255/20715—Zirconium
    • 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
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
    • B01J21/066—Zirconium or hafnium; Oxides or hydroxides thereof
    • 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
    • B01J37/0242—Coating followed by impregnation
    • 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)
  • Exhaust Gas After Treatment (AREA)

Abstract

　排ガス浄化用触媒１は、触媒基材３と、前記触媒基材３上に形成され、（ａ）Ｒｈ、（ｂ）Ｐｔ、（ｃ）アルカリ金属又はアルカリ土類金属元素、及び（ｄ）無機酸化物を含む触媒コート層５、７とを有し、前記触媒コート層５、７は、前記（ａ）が実質的に偏在する内層５と、前記（ｂ）が実質的に偏在する外層７とを備えた層構造を有し、前記内層５は、ジルコニア酸化物を含むことを特徴とする。
PCT/JP2008/051124 2007-01-26 2008-01-25 排ガス浄化用触媒 WO2008090991A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP08703936A EP2116299A4 (en) 2007-01-26 2008-01-25 EMISSION CONTROL CATALYST
JP2008555119A JP5113082B2 (ja) 2007-01-26 2008-01-25 排ガス浄化用触媒
US12/524,352 US8496899B2 (en) 2007-01-26 2008-01-25 Exhaust gas purifying catalyst

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-016598 2007-01-26
JP2007016598 2007-01-26

Publications (2)

Publication Number Publication Date
WO2008090991A1 WO2008090991A1 (ja) 2008-07-31
WO2008090991A9 true WO2008090991A9 (ja) 2009-01-15

Family

ID=39644565

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/051124 WO2008090991A1 (ja) 2007-01-26 2008-01-25 排ガス浄化用触媒

Country Status (4)

Country Link
US (1) US8496899B2 (ja)
EP (1) EP2116299A4 (ja)
JP (1) JP5113082B2 (ja)
WO (1) WO2008090991A1 (ja)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5253233B2 (ja) * 2009-02-27 2013-07-31 トヨタ自動車株式会社 排ガス浄化触媒
JP5286526B2 (ja) * 2009-03-31 2013-09-11 株式会社キャタラー 排ガス浄化触媒及びその製造方法
JP5253308B2 (ja) * 2009-06-26 2013-07-31 トヨタ自動車株式会社 ＮＯｘ吸蔵還元型排ガス浄化触媒
US8784759B2 (en) * 2010-06-10 2014-07-22 Basf Se NOx storage catalyst with reduced Rh loading
GB2484911B (en) * 2010-10-22 2013-04-03 Johnson Matthey Plc NOx absorber catalyst comprising caesium silicate and at least one platinum group metal
GB201021649D0 (en) * 2010-12-21 2011-02-02 Johnson Matthey Plc NOx Absorber catalyst
US9186654B2 (en) * 2011-11-03 2015-11-17 GM Global Technology Operations LLC Low cost lean NOx reduction catalyst system
MX2015011154A (es) 2013-03-14 2016-03-11 Basf Corp Articulo catalitico con revestimiento segregado y metodos para fabricarlo.
US11788450B2 (en) * 2020-10-30 2023-10-17 Johnson Matthey Public Limited Company TWC catalysts for gasoline engine exhaust gas treatments

Family Cites Families (57)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1098105A (en) * 1977-07-15 1981-03-24 Jack C. Summers Catalyst for automotive emission control and method for making same
US4128506A (en) * 1978-01-23 1978-12-05 General Motors Corporation Platinum-rhodium catalyst for automotive emission control
JPH04118053A (ja) * 1989-12-29 1992-04-20 Tokyo Roki Kk エンジンの排気ガス浄化用触媒
US5212142A (en) * 1991-11-04 1993-05-18 Engelhard Corporation High performance thermally stable catalyst
US5407880A (en) * 1992-11-09 1995-04-18 Nissan Motor Co., Ltd. Catalysts for adsorption of hydrocarbons
DE69417889T2 (de) * 1993-06-25 1999-10-07 Engelhard Corp Zusammengesetzten schichtkatalysator
US6497851B1 (en) * 1994-12-06 2002-12-24 Englehard Corporation Engine exhaust treatment apparatus and method of use
US5593647A (en) * 1995-03-31 1997-01-14 General Motors Corporation Catalytic converter having tri precious metal catalysts
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
US6087298A (en) * 1996-05-14 2000-07-11 Engelhard Corporation Exhaust gas treatment system
US5948377A (en) * 1996-09-04 1999-09-07 Engelhard Corporation Catalyst composition
JP3956437B2 (ja) * 1996-09-26 2007-08-08 マツダ株式会社 排気ガス浄化用触媒
DE69728341T2 (de) * 1996-10-07 2004-12-30 Kabushiki Kaisha Toyota Chuo Kenkyusho Verbundoxid, Verbundoxidträger und Katalysator
US6921738B2 (en) * 1996-12-06 2005-07-26 Engelhard Corporation Catalytic metal plate
JP3589376B2 (ja) 1997-01-10 2004-11-17 トヨタ自動車株式会社 排ガス浄化用触媒
US6165429A (en) * 1997-01-10 2000-12-26 Toyota Jidosha Kabushiki Kaisha Exhaust gas purifying catalyst and exhaust gas purifying method
US6348430B1 (en) * 1997-06-20 2002-02-19 Degussa Ag Exhaust gas treatment catalyst for internal combustion engines with two catalytically active layers on a carrier structure
GB9713428D0 (en) * 1997-06-26 1997-08-27 Johnson Matthey Plc Improvements in emissions control
DE19847008A1 (de) * 1998-10-13 2000-04-20 Degussa Stickoxid-Speicherkatalysator
JP3775080B2 (ja) 1998-11-25 2006-05-17 トヨタ自動車株式会社 排ガス浄化用触媒
JP2000176298A (ja) * 1998-12-11 2000-06-27 Mazda Motor Corp 排気ガス浄化用触媒及びその製造方法
JP3860929B2 (ja) 1999-03-02 2006-12-20 トヨタ自動車株式会社 排ガス浄化用触媒とその製造方法及び排ガス浄化方法
US6375910B1 (en) * 1999-04-02 2002-04-23 Engelhard Corporation Multi-zoned catalytic trap and methods of making and using the same
US6294140B1 (en) * 1999-04-23 2001-09-25 Degussa Ag Layered noble metal-containing exhaust gas catalyst and its preparation
US6261989B1 (en) * 1999-05-19 2001-07-17 Daihatsu Motor Co., Ltd. Catalytic converter for cleaning exhaust gas
JP2000342966A (ja) 1999-06-08 2000-12-12 Toyota Motor Corp 排ガス浄化用触媒及び排ガス浄化方法
EP1066874B1 (en) * 1999-07-09 2009-09-23 Nissan Motor Company, Limited Exhaust gas purifying catalyst and method of producing same
JP3489049B2 (ja) * 1999-07-15 2004-01-19 日産自動車株式会社 排気ガス浄化用触媒
US6881384B1 (en) * 1999-08-30 2005-04-19 Daihatsu Motor Co., Ltd. Catalytic converter for cleaning exhaust gas
JP3489048B2 (ja) * 2000-02-01 2004-01-19 日産自動車株式会社 排気ガス浄化用触媒
JP3904802B2 (ja) * 2000-04-26 2007-04-11 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
US6777370B2 (en) * 2001-04-13 2004-08-17 Engelhard Corporation SOx tolerant NOx trap catalysts and methods of making and using the same
JP4645786B2 (ja) 2001-06-08 2011-03-09 三菱自動車工業株式会社 排ガス浄化用触媒
JP3845274B2 (ja) * 2001-06-26 2006-11-15 ダイハツ工業株式会社 排ガス浄化用触媒
JP2003062464A (ja) * 2001-08-28 2003-03-04 Hitachi Ltd 内燃機関用排ガス浄化触媒及び排ガス浄化装置並びに自動車
US7276212B2 (en) * 2001-10-01 2007-10-02 Engelhard Corporation Exhaust articles for internal combustion engines
US6764665B2 (en) * 2001-10-26 2004-07-20 Engelhard Corporation Layered catalyst composite
JP3855266B2 (ja) * 2001-11-01 2006-12-06 日産自動車株式会社 排気ガス浄化用触媒
US20040001781A1 (en) * 2002-06-27 2004-01-01 Engelhard Corporation Multi-zone catalytic converter
US7329629B2 (en) * 2002-10-24 2008-02-12 Ford Global Technologies, Llc Catalyst system for lean burn engines
US7022646B2 (en) * 2003-01-31 2006-04-04 Engelhard Corporation Layered catalyst composite
JP5212961B2 (ja) 2003-03-06 2013-06-19 ユミコア日本触媒株式会社 排気ガス浄化用触媒およびその製造方法、ならびに排気ガス浄化方法
KR100527943B1 (ko) * 2003-06-04 2005-11-09 현대자동차주식회사 2중층 코팅구조의 팔라듐 삼원촉매 제조방법
RU2350379C2 (ru) 2003-08-29 2009-03-27 Дау Глобал Текнолоджиз Инк. Фильтр для выхлопных газов дизельных двигателей
US7875250B2 (en) * 2003-12-11 2011-01-25 Umicore Ag & Co. Kg Exhaust treatment device, and methods of making the same
US20050164879A1 (en) * 2004-01-28 2005-07-28 Engelhard Corporation Layered SOx tolerant NOx trap catalysts and methods of making and using the same
US7214331B2 (en) * 2004-02-26 2007-05-08 The Boc Group, Inc. Catalyst configuration and methods for syngas production
US7374729B2 (en) * 2004-03-30 2008-05-20 Basf Catalysts Llc Exhaust gas treatment catalyst
US7795172B2 (en) * 2004-06-22 2010-09-14 Basf Corporation Layered exhaust treatment catalyst
JP4826207B2 (ja) * 2005-10-28 2011-11-30 日産自動車株式会社 排ガス浄化触媒及び排ガス浄化触媒の製造方法
US7576031B2 (en) * 2006-06-09 2009-08-18 Basf Catalysts Llc Pt-Pd diesel oxidation catalyst with CO/HC light-off and HC storage function
US7749472B2 (en) * 2006-08-14 2010-07-06 Basf Corporation Phosgard, a new way to improve poison resistance in three-way catalyst applications
US7517510B2 (en) * 2006-08-21 2009-04-14 Basf Catalysts Llc Layered catalyst composite
US7550124B2 (en) * 2006-08-21 2009-06-23 Basf Catalysts Llc Layered catalyst composite
US20080044330A1 (en) * 2006-08-21 2008-02-21 Shau-Lin Franklin Chen Layered catalyst composite
US7758834B2 (en) * 2006-08-21 2010-07-20 Basf Corporation Layered catalyst composite
US7709414B2 (en) * 2006-11-27 2010-05-04 Nanostellar, Inc. Engine exhaust catalysts containing palladium-gold

Also Published As

Publication number Publication date
JPWO2008090991A1 (ja) 2010-05-20
EP2116299A1 (en) 2009-11-11
JP5113082B2 (ja) 2013-01-09
WO2008090991A1 (ja) 2008-07-31
EP2116299A4 (en) 2011-09-14
US20100056367A1 (en) 2010-03-04
US8496899B2 (en) 2013-07-30

Similar Documents

Publication Publication Date Title
WO2008090991A1 (ja) 排ガス浄化用触媒
WO2010075056A3 (en) Aircraft air treatment catalysts, systems and methods
WO2008127406A3 (en) A gas separation membrane comprising a substrate with a layer of coated inorganic oxide particles and an overlayer of a gas-selective material, and its manufacture and use
AR062470A1 (es) Compuesto de catalizador en capas, articulo y metodo para tratar gas de escape.
WO2011080567A8 (en) Exhaust gas purifying catalyst
EP1900848A3 (en) Silicate resistant thermal barrier coating with alternating layers
GB2431932B (en) Two-layer barrier system using pyrochlores
TW200728593A (en) Yttria-stabilized zirconia coating with a molten silicate resistant outer layer
ATE518804T1 (de) Flexibler, mehrschichtiger getter
ITRM20050184A1 (it) Struttura di copertura con diverse funzioni, ad esempio quella antisismica, di protezione da raffiche di vento, ed altro ancora.
WO2007115839A3 (en) Layered thermal barrier coating with a high porosity, and a component
ATE482766T1 (de) Doppelschichtiger dreiweg-katalysator
WO2007143043A3 (en) Air purification system
EP1704910A3 (en) Exhaust gas purification catalyst
EP1736241A4 (en) EMISSION CONTROL CATALYST
EP2005502A4 (en) ELECTRODE WITH ACTIVE POROUS COATING LAYER, METHOD OF MANUFACTURE, AND ELECTROCHEMICAL DEVICE SO EQUIPPED
AU2002360312A1 (en) Layered catalyst composite and use thereof
WO2007120194A3 (en) Strontium titanium oxides and abradable coatings made therefrom
GB2531640A (en) Ammonia oxidation catalyst
BR0306617B1 (pt) mecanismo de bocal variável, turbo carregador de exaustão equipado com o mesmo, e método de fabricação de turbo carregador de exaustão com mecanismo de bocal variável.
WO2008126309A1 (ja) 混合粒子及びハニカム構造体
EP1674148A3 (en) Exhaust gas purifying catalyst
WO2009060933A1 (ja) 排ガス浄化装置
WO2009117473A3 (en) Structures including antimicrobial peptides
WO2008154890A3 (de) Verschleissschutzbeschichtung und bauteil mit einer verschleissschutzbeschichtung

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08703936

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2008555119

Country of ref document: JP

Kind code of ref document: A

REEP Request for entry into the european phase

Ref document number: 2008703936

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2008703936

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 12524352

Country of ref document: US

NENP Non-entry into the national phase

Ref country code: DE