DE69312778D1 - Katalysator für Abgasreinigung und Verfahren zur Reinigung von Abgasen - Google Patents

Katalysator für Abgasreinigung und Verfahren zur Reinigung von Abgasen

Info

Publication number
DE69312778D1
DE69312778D1 DE69312778T DE69312778T DE69312778D1 DE 69312778 D1 DE69312778 D1 DE 69312778D1 DE 69312778 T DE69312778 T DE 69312778T DE 69312778 T DE69312778 T DE 69312778T DE 69312778 D1 DE69312778 D1 DE 69312778D1
Authority
DE
Germany
Prior art keywords
exhaust gas
gas purification
purification method
purification catalyst
catalyst
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
DE69312778T
Other languages
English (en)
Other versions
DE69312778T2 (de
Inventor
Toshio Takahata
Hideharu Ehara
Fuminori Yamanashi
Katsuhiro Shibata
Fumio Abe
Tomoharu Kondo
Junichi Suzuki
Naomi Noda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NGK Insulators Ltd
Original Assignee
NGK Insulators Ltd
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
Priority claimed from JP4095245A external-priority patent/JPH05293384A/ja
Priority claimed from JP4095246A external-priority patent/JPH05293376A/ja
Application filed by NGK Insulators Ltd filed Critical NGK Insulators Ltd
Publication of DE69312778D1 publication Critical patent/DE69312778D1/de
Application granted granted Critical
Publication of DE69312778T2 publication Critical patent/DE69312778T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • B01J37/0234—Impregnation and coating simultaneously
    • 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
    • B01J23/63—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
    • 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
    • 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
    • B01J37/0248—Coatings comprising impregnated particles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/009—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series
    • F01N13/0097—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series the purifying devices are arranged in a single housing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F01N3/2006—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
    • F01N3/2013—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating using electric or magnetic heating means
    • F01N3/2026—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating using electric or magnetic heating means directly electrifying the catalyst substrate, i.e. heating the electrically conductive catalyst substrate by joule effect
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/22—Control of additional air supply only, e.g. using by-passes or variable air pump drives
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/22—Control of additional air supply only, e.g. using by-passes or variable air pump drives
    • F01N3/222—Control of additional air supply only, e.g. using by-passes or variable air pump drives using electric valves only
    • 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
    • B01D2255/90—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
    • B01D2255/904—Multiple catalysts
    • 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
    • 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
    • B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2330/00—Structure of catalyst support or particle filter
    • F01N2330/02—Metallic plates or honeycombs, e.g. superposed or rolled-up corrugated or otherwise deformed sheet metal
    • F01N2330/04—Methods of manufacturing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/30—Arrangements for supply of additional air
    • F01N3/32—Arrangements for supply of additional air using air pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder
    • 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)
  • Combustion & Propulsion (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Toxicology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Analytical Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biomedical Technology (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
DE69312778T 1992-04-15 1993-04-15 Katalysator für Abgasreinigung und Verfahren zur Reinigung von Abgasen Expired - Fee Related DE69312778T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP4095245A JPH05293384A (ja) 1992-04-15 1992-04-15 排ガス浄化用触媒及び排ガス浄化方法
JP4095246A JPH05293376A (ja) 1992-04-15 1992-04-15 排ガス浄化用触媒及び排ガス浄化方法

Publications (2)

Publication Number Publication Date
DE69312778D1 true DE69312778D1 (de) 1997-09-11
DE69312778T2 DE69312778T2 (de) 1998-01-08

Family

ID=26436513

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69312778T Expired - Fee Related DE69312778T2 (de) 1992-04-15 1993-04-15 Katalysator für Abgasreinigung und Verfahren zur Reinigung von Abgasen

Country Status (3)

Country Link
US (1) US5376610A (de)
EP (1) EP0566401B1 (de)
DE (1) DE69312778T2 (de)

Families Citing this family (86)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5766458A (en) * 1993-03-12 1998-06-16 Micropyretics Heaters International, Inc. Modulated and regenerative ceramic filter with insitu heating element
US5655212A (en) * 1993-03-12 1997-08-05 Micropyretics Heaters International, Inc. Porous membranes
WO1994025143A1 (en) * 1993-04-28 1994-11-10 Nippon Shokubai Co., Ltd. Method of removing nitrogen oxides contained in exhaust gas
JPH0760117A (ja) * 1993-08-30 1995-03-07 Honda Motor Co Ltd 排気ガス浄化用触媒
CA2151859C (en) * 1994-06-17 2002-02-26 Satoshi Inui Catalyst for purifying exhaust gas from lean burn engine and method for purification
US5480622A (en) * 1994-07-05 1996-01-02 Ford Motor Company Electrically heatable catalyst device using electrically conductive non-metallic materials
US6667018B2 (en) * 1994-07-05 2003-12-23 Ngk Insulators, Ltd. Catalyst-adsorbent for purification of exhaust gases and method for purification of exhaust gases
US5558760A (en) * 1994-12-12 1996-09-24 Micropyretics Heaters International, Inc. Filter/heating body produced by a method of spraying a shape
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
US6080377A (en) * 1995-04-27 2000-06-27 Engelhard Corporation Method of abating NOx and a catalytic material therefor
JPH0910594A (ja) * 1995-04-28 1997-01-14 Mazda Motor Corp 排気ガス浄化用触媒
JP3799651B2 (ja) * 1995-04-28 2006-07-19 マツダ株式会社 排気ガス浄化用触媒
US5741467A (en) * 1995-06-07 1998-04-21 Asec Manufacturing Palladium catalyst washcoat supports for improved methane oxidation in natural gas automotive emission catalysts
US6471924B1 (en) 1995-07-12 2002-10-29 Engelhard Corporation Method and apparatus for NOx abatement in lean gaseous streams
US5874057A (en) * 1995-07-12 1999-02-23 Engelhard Corporation Lean NOx catalyst/trap method
ATE349264T1 (de) * 1995-12-27 2007-01-15 Ict Co Ltd Reinigungskatalysator für verbrennungsmotorabgas
US5846502A (en) * 1996-01-16 1998-12-08 Ford Global Technologies, Inc. Mini-cascade catalyst system
US5792436A (en) * 1996-05-13 1998-08-11 Engelhard Corporation Method for using a regenerable catalyzed trap
US6087298A (en) * 1996-05-14 2000-07-11 Engelhard Corporation Exhaust gas treatment system
JP3509426B2 (ja) * 1996-05-24 2004-03-22 トヨタ自動車株式会社 内燃機関の排気ガス浄化装置
US20010026838A1 (en) * 1996-06-21 2001-10-04 Engelhard Corporation Monolithic catalysts and related process for manufacture
EP0842700B1 (de) * 1996-11-11 1999-03-24 Degussa Ag Abgasreinigungskatalysator mit Verbessertem Umsatz für Kohlenwasserstoffe
US6165429A (en) * 1997-01-10 2000-12-26 Toyota Jidosha Kabushiki Kaisha Exhaust gas purifying catalyst and exhaust gas purifying method
US5897846A (en) * 1997-01-27 1999-04-27 Asec Manufacturing Catalytic converter having a catalyst with noble metal on molecular sieve crystal surface and method of treating diesel engine exhaust gas with same
JPH1193649A (ja) * 1997-09-18 1999-04-06 Ngk Insulators Ltd ヒータユニット
US20020048542A1 (en) 1999-04-02 2002-04-25 Michel Deeba Catalytic trap and methods of making and using the same
US6497848B1 (en) 1999-04-02 2002-12-24 Engelhard Corporation Catalytic trap with potassium component and method of using the same
DE10024994A1 (de) 1999-05-24 2001-01-04 Daihatsu Motor Co Ltd Katalytischer Umwandler zum Reinigen von Abgasen
JP2001070790A (ja) * 1999-09-02 2001-03-21 Toyota Motor Corp 排気ガス浄化用触媒
JP3743995B2 (ja) * 1999-12-15 2006-02-08 日産自動車株式会社 メタノール改質触媒
JP3664019B2 (ja) * 1999-12-27 2005-06-22 日産自動車株式会社 触媒コンバータ
GB0014620D0 (en) * 2000-06-16 2000-08-09 Johnson Matthey Plc Reactor
JP4703818B2 (ja) * 2000-06-20 2011-06-15 株式会社アイシーティー 排気ガス浄化用触媒および排気ガス浄化方法
KR100492449B1 (ko) * 2000-06-30 2005-05-31 아이씨티 코., 엘티디. 배기 정화용 촉매장치
JP4463437B2 (ja) * 2001-01-31 2010-05-19 本田技研工業株式会社 一酸化炭素選択酸化除去装置および一酸化炭素選択酸化除去方法
US7175822B2 (en) * 2001-07-30 2007-02-13 Valtion Teknillinen Tutkimuskeskus Method for catalytic reduction of nitrogen oxides
US7084086B2 (en) * 2002-02-01 2006-08-01 Cataler Corporation Catalyst for purifying exhaust gases
KR100499348B1 (ko) * 2002-11-05 2005-07-04 주식회사 엔비켐 금속 모노리스형 촉매 모듈 제조를 위한 금속구조체 표면상에 금속-금속산화물 층상입자층의 피복방법 및 촉매부착방법
JP4429756B2 (ja) * 2004-02-10 2010-03-10 株式会社キャタラー フィルタ触媒
KR101037564B1 (ko) * 2004-03-30 2011-05-27 니키 유니바사루 가부시키가이샤 배기가스 정화용 촉매와 배기가스의 정화 방법
US7795172B2 (en) * 2004-06-22 2010-09-14 Basf Corporation Layered exhaust treatment catalyst
DE102004040549B4 (de) * 2004-08-21 2017-03-23 Umicore Ag & Co. Kg Katalytisch beschichtetes Partikelfilter und seine Verwendung
JP5200315B2 (ja) * 2004-12-22 2013-06-05 日産自動車株式会社 排気ガス浄化触媒、及び排気ガス浄化触媒の製造方法
JP4639919B2 (ja) * 2005-04-08 2011-02-23 三菱自動車工業株式会社 排気ガス浄化装置
JP5021188B2 (ja) * 2005-08-01 2012-09-05 株式会社キャタラー 排ガス浄化用触媒
US8168560B2 (en) * 2005-10-05 2012-05-01 Cataler Corporation Exhaust gas purifying catalyst
KR100752372B1 (ko) * 2006-04-10 2007-08-27 희성엥겔하드주식회사 황화수소 저감을 위한 제오라이트를 포함한 배기가스정화용 촉매조성물
JP4935219B2 (ja) * 2006-07-20 2012-05-23 トヨタ自動車株式会社 排ガス浄化用触媒
JP2008023501A (ja) 2006-07-25 2008-02-07 Toyota Motor Corp 排ガス浄化用触媒
US7758834B2 (en) * 2006-08-21 2010-07-20 Basf Corporation Layered catalyst composite
US7550124B2 (en) * 2006-08-21 2009-06-23 Basf Catalysts Llc Layered catalyst composite
US7517510B2 (en) * 2006-08-21 2009-04-14 Basf Catalysts Llc Layered catalyst composite
JP4760625B2 (ja) * 2006-09-06 2011-08-31 マツダ株式会社 排ガス浄化用触媒装置
JP5582700B2 (ja) * 2006-09-29 2014-09-03 株式会社キャタラー ロジウム担持用薬液及び当該薬液を用いて調製したロジウム触媒
EP2127744B1 (de) * 2007-02-01 2018-07-18 Daiichi Kigenso Kagaku Kogyo Co., Ltd. Abgasreinigungsgerät beihnaltend ein katalysatorsystem und abgasreinigungsverfahren
JP5110954B2 (ja) * 2007-05-09 2012-12-26 エヌ・イーケムキャット株式会社 選択還元型触媒を用いた排気ガス浄化触媒装置並びに排気ガス浄化方法
JP5173282B2 (ja) * 2007-07-04 2013-04-03 株式会社キャタラー 排ガス浄化用触媒
US8007750B2 (en) 2007-07-19 2011-08-30 Basf Corporation Multilayered catalyst compositions
US20090175773A1 (en) * 2008-01-08 2009-07-09 Chen Shau-Lin F Multilayered Catalyst Compositions
JP2009233587A (ja) * 2008-03-27 2009-10-15 Ngk Insulators Ltd 触媒付きディーゼルパティキュレートフィルタ及びその製造方法
JP4751917B2 (ja) * 2008-06-30 2011-08-17 トヨタ自動車株式会社 排ガス浄化用触媒
JP5277891B2 (ja) * 2008-11-17 2013-08-28 三菱自動車工業株式会社 排気浄化装置
WO2010061804A1 (ja) * 2008-11-26 2010-06-03 本田技研工業株式会社 内燃機関の排気浄化装置
JP5492448B2 (ja) * 2009-04-28 2014-05-14 株式会社キャタラー 排ガス浄化用触媒
JP5515939B2 (ja) * 2010-03-26 2014-06-11 マツダ株式会社 排気ガス浄化用触媒
CA2844732A1 (en) * 2011-08-10 2013-02-14 Clean Diesel Technologies, Inc. Palladium solid solution catalyst and methods of making
US9266092B2 (en) 2013-01-24 2016-02-23 Basf Corporation Automotive catalyst composites having a two-metal layer
JP5846137B2 (ja) * 2013-02-13 2016-01-20 トヨタ自動車株式会社 触媒コンバーター
GB2518418A (en) * 2013-09-20 2015-03-25 Johnson Matthey Plc Electrically heated catalyst for a compression ignition engine
WO2015182726A1 (ja) 2014-05-28 2015-12-03 ユミコア日本触媒株式会社 内燃機関排ガス浄化用触媒およびそのシステム
KR102483435B1 (ko) 2014-12-08 2023-01-02 바스프 코포레이션 배기 시스템용 아산화질소 제거 촉매
JP6460817B2 (ja) 2015-02-04 2019-01-30 株式会社キャタラー 排ガス浄化用触媒
JP6372513B2 (ja) * 2016-04-13 2018-08-15 トヨタ自動車株式会社 触媒コンバーター
WO2019055040A1 (en) * 2017-09-18 2019-03-21 Ford Global Technologies, Llc CATALYST FOR CONTROLLING THE EMISSIONS OF MOTOR VEHICLES
JP2019058875A (ja) * 2017-09-27 2019-04-18 イビデン株式会社 ハニカム触媒
JP6684257B2 (ja) * 2017-09-27 2020-04-22 イビデン株式会社 排ガス浄化用ハニカム触媒
JP2019058876A (ja) * 2017-09-27 2019-04-18 イビデン株式会社 ハニカム触媒
JP6698602B2 (ja) * 2017-09-27 2020-05-27 イビデン株式会社 排ガス浄化用ハニカム触媒
BR112021002468A2 (pt) * 2018-08-10 2021-07-27 Honda Motor Co., Ltd. dispositivo catalisador
JP7035921B2 (ja) * 2018-09-06 2022-03-15 トヨタ自動車株式会社 排気後処理装置
JP2020084832A (ja) * 2018-11-19 2020-06-04 トヨタ自動車株式会社 内燃機関の制御装置
JP2020163342A (ja) 2019-03-29 2020-10-08 株式会社キャタラー 排ガス浄化触媒装置
FR3102507B1 (fr) * 2019-10-28 2021-11-19 Faurecia Systemes Dechappement Dispositif de chauffage de gaz d’échappement, ligne d’échappement et véhicule associés
US11642655B2 (en) * 2020-01-07 2023-05-09 Johnson Matthey Public Limited Company Multi-region TWC catalysts for gasoline engine exhaust gas treatments
US11788450B2 (en) * 2020-10-30 2023-10-17 Johnson Matthey Public Limited Company TWC catalysts for gasoline engine exhaust gas treatments

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51127919A (en) * 1975-04-28 1976-11-08 Nissan Motor Co Ltd Internal combustion engine with exhaust control device
JPS52153021A (en) * 1976-06-15 1977-12-19 Nissan Motor Co Ltd Secondary air supply regulating system
JPS6027806B2 (ja) * 1977-07-23 1985-07-01 トヨタ自動車株式会社 内燃機関の排気ガス浄化装置
US4448756A (en) * 1983-01-28 1984-05-15 Ford Motor Company Process for treatment of exhaust gases
JPS6384635A (ja) * 1986-09-26 1988-04-15 Nissan Motor Co Ltd 排気ガス浄化用触媒
JPH0256247A (ja) * 1988-05-17 1990-02-26 Toyota Motor Corp 排気浄化用触媒
US4928485A (en) * 1989-06-06 1990-05-29 W. R. Grace & Co.,-Conn. Metallic core member for catalytic converter and catalytic converter containing same
ATE120985T1 (de) * 1989-06-09 1995-04-15 N E Chemcat Corp Abgasreinigungskatalysator mit ausgezeichneter thermischer beständigkeit und verfahren zu seiner herstellung.
JPH0338892A (ja) * 1989-07-06 1991-02-19 Murata Mfg Co Ltd 圧電性磁器組成物
JPH03101813A (ja) * 1989-09-14 1991-04-26 Nippon Shokubai Kagaku Kogyo Co Ltd 触媒コンバータ装置
US5010051A (en) * 1989-11-08 1991-04-23 Engelhard Corporation Staged three-way conversion catalyst and method of using the same
US5057483A (en) * 1990-02-22 1991-10-15 Engelhard Corporation Catalyst composition containing segregated platinum and rhodium components
JP3061399B2 (ja) * 1990-06-20 2000-07-10 株式会社日本触媒 ディーゼルエンジン排ガス浄化用触媒および浄化方法
JP2771321B2 (ja) * 1990-11-09 1998-07-02 日本碍子株式会社 排気ガス浄化用触媒組成物、排気ガス浄化用触媒及びその製造方法
US5427601A (en) * 1990-11-29 1995-06-27 Ngk Insulators, Ltd. Sintered metal bodies and manufacturing method therefor

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EP0566401A1 (de) 1993-10-20
EP0566401B1 (de) 1997-08-06

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