DE69426856T2 - Katalysator und Verfahren zum Reinigen von Abgasen - Google Patents

Katalysator und Verfahren zum Reinigen von Abgasen

Info

Publication number
DE69426856T2
DE69426856T2 DE69426856T DE69426856T DE69426856T2 DE 69426856 T2 DE69426856 T2 DE 69426856T2 DE 69426856 T DE69426856 T DE 69426856T DE 69426856 T DE69426856 T DE 69426856T DE 69426856 T2 DE69426856 T2 DE 69426856T2
Authority
DE
Germany
Prior art keywords
exhaust gases
catalytic converter
cleaning exhaust
cleaning
catalytic
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 - Lifetime
Application number
DE69426856T
Other languages
English (en)
Other versions
DE69426856D1 (de
Inventor
Naoto Miyoshi
Mareo Kimura
Yuzo Kawai
Yoko Kumai
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.)
Toyota Motor Corp
Toyota Central R&D Labs Inc
Original Assignee
Toyota Motor Corp
Toyota Central R&D Labs Inc
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 Toyota Motor Corp, Toyota Central R&D Labs Inc filed Critical Toyota Motor Corp
Publication of DE69426856D1 publication Critical patent/DE69426856D1/de
Application granted granted Critical
Publication of DE69426856T2 publication Critical patent/DE69426856T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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
    • 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)
DE69426856T 1993-11-17 1994-11-15 Katalysator und Verfahren zum Reinigen von Abgasen Expired - Lifetime DE69426856T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP28830293A JP3409894B2 (ja) 1993-11-17 1993-11-17 排ガス浄化用触媒及び排ガス浄化方法

Publications (2)

Publication Number Publication Date
DE69426856D1 DE69426856D1 (de) 2001-04-19
DE69426856T2 true DE69426856T2 (de) 2001-10-25

Family

ID=17728415

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69426856T Expired - Lifetime DE69426856T2 (de) 1993-11-17 1994-11-15 Katalysator und Verfahren zum Reinigen von Abgasen

Country Status (4)

Country Link
US (1) US5922293A (de)
EP (1) EP0653238B1 (de)
JP (1) JP3409894B2 (de)
DE (1) DE69426856T2 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0929093A (ja) * 1995-07-21 1997-02-04 Toyota Central Res & Dev Lab Inc 排ガス浄化用触媒及びその製造方法
JP3977883B2 (ja) * 1996-10-03 2007-09-19 株式会社日立製作所 内燃機関用排ガス浄化触媒
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
EP1043065B1 (de) * 1997-12-22 2004-09-01 Toyota Jidosha Kabushiki Kaisha Katalysator zum reinigen von abgas, verfahren zu seiner herstellung und verfahren zum reinigen von abgas
DE59901949D1 (de) * 1998-05-06 2002-08-08 Siemens Ag Oxidationskatalysator und verfahren zur katalytischen oxidation
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
JP4012320B2 (ja) * 1998-10-15 2007-11-21 株式会社アイシーティー 希薄燃焼エンジン用排気ガス浄化用触媒
US6217837B1 (en) * 1998-11-02 2001-04-17 Ford Global Technologies, Inc. Use of sol-gel processed alumina-based metal oxides for absorbing nitrogen oxides in oxidizing exhaust gas
US6258330B1 (en) * 1998-11-10 2001-07-10 International Fuel Cells, Llc Inhibition of carbon deposition on fuel gas steam reformer walls
US6146602A (en) * 1999-02-08 2000-11-14 Ford Global Technologies, Inc. Mesoporous oxide molecular sieves for absorbing nitrogen oxides in oxidizing engine exhaust gas
FI118326B (fi) 2000-04-10 2007-10-15 Ecocat Oy Adsorbenttikatalyytti
US6537511B1 (en) 2000-08-21 2003-03-25 Ford Global Technologies, Inc. Modified platinum NOx trap for automotive emission reduction
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
JP4534749B2 (ja) * 2004-12-20 2010-09-01 株式会社豊田中央研究所 ＮＯｘ吸蔵材とその担持方法及びＮＯｘ吸蔵還元型触媒
JP2013181502A (ja) * 2012-03-02 2013-09-12 Toyota Motor Corp 排ガス浄化装置
JP7128913B2 (ja) 2018-06-27 2022-08-31 ビーエル テクノロジーズ、インコーポレイテッド アルカリ安定性のナノ濾過複合膜及びそれらの製造方法

Family Cites Families (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2279463A1 (fr) * 1974-04-25 1976-02-20 Du Pont Compositions catalytiques d'oxydes de metaux
JPS5319986A (en) * 1976-08-08 1978-02-23 Nippon Soken Exhaust gas scrubbing catalysts
DE2907106C2 (de) * 1979-02-23 1985-12-19 Degussa Ag, 6000 Frankfurt Abgaskatalysator und seine Verwendung zur Reinigung der Abgase von Verbrennungskraftmaschinen
US4497783A (en) * 1981-08-17 1985-02-05 American Cyanamid Company Exhaust emission catalyst
US4654319A (en) * 1983-01-26 1987-03-31 W. R. Grace & Co. Doubly promoted platinum group metal catalysts for emission control and method for making the catalysts
US4755499A (en) * 1984-10-12 1988-07-05 Noxso Corporation Sorbent for removing nitrogen oxides, sulfur oxides and hydrogen sulfide from gas streams
AU595655B2 (en) * 1986-11-04 1990-04-05 Kabushiki Kaisha Toyota Chuo Kenkyusho Catalyst for the purification of exhaust gas
US4904633A (en) * 1986-12-18 1990-02-27 Nippon Shokubai Kagaku Kogyo Co., Ltd. Catalyst for purifying exhaust gas and method for production thereof
US4780447A (en) * 1987-07-10 1988-10-25 W. R. Grace & Co.-Conn. Catalysts for controlling auto exhaust emissions including hydrocarbon, carbon monoxide, nitrogen oxides and hydrogen sulfide and method of making the catalysts
JPH01168343A (ja) * 1987-12-22 1989-07-03 Toyota Central Res & Dev Lab Inc 排気ガス用浄化触媒
DE3803122C1 (de) * 1988-02-03 1989-07-13 Degussa Ag, 6000 Frankfurt, De
JPH0644999B2 (ja) * 1988-04-30 1994-06-15 株式会社豊田中央研究所 排気ガス浄化用触媒
JP3285857B2 (ja) * 1989-07-06 2002-05-27 マツダ株式会社 排気ガス浄化用触媒
US5041407A (en) * 1989-12-14 1991-08-20 Allied-Signal Inc. High-temperature three-way catalyst for treating automotive exhaust gases
GB9020568D0 (en) * 1990-09-20 1990-10-31 Rover Group Supported palladium catalysts
JPH04130904A (ja) 1990-09-21 1992-05-01 Toshiba Corp マスタスレーブマニピュレータ用制御装置
GB2248194B (en) * 1990-09-25 1994-11-09 Riken Kk Catalyst for cleaning exhaust gas
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
JP2773428B2 (ja) * 1990-11-28 1998-07-09 トヨタ自動車株式会社 排気ガス浄化方法
AU645632B2 (en) * 1990-12-06 1994-01-20 Tosoh Corporation Catalyst for purifying exhaust gas
JP2821033B2 (ja) * 1991-01-07 1998-11-05 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
JP3226558B2 (ja) * 1991-03-12 2001-11-05 日石三菱株式会社 炭化水素の高温水蒸気改質用触媒
CA2064977C (en) * 1991-04-05 1998-09-22 Eiichi Shiraishi Catalyst for purifying exhaust gas
US5271916A (en) * 1991-07-08 1993-12-21 General Motors Corporation Device for staged carbon monoxide oxidation
JP2783074B2 (ja) * 1991-10-29 1998-08-06 トヨタ自動車株式会社 内燃機関の排気浄化装置
US5185305A (en) * 1991-11-08 1993-02-09 Ford Motor Company Catalyst system for treating the exhaust from a lean-burn gasoline-fueled engine
DE69218183T2 (de) * 1991-12-27 1997-07-31 Toyoda Chuo Kenkyusho Kk Vorrichtung zur emissionsregelung in einem verbrennungsmotor
DE4244712C2 (de) * 1992-02-14 1996-09-05 Degussa Beschichtungsdispersion zur Herstellung von kalysefördernden Überzügen auf einem inerten, strukturverstärkenden Körper
JP3311012B2 (ja) * 1992-03-23 2002-08-05 株式会社豊田中央研究所 排気ガス浄化用触媒および排気ガス浄化方法
JP3328318B2 (ja) 1992-05-22 2002-09-24 トヨタ自動車株式会社 排気ガスの浄化方法
JP2605586B2 (ja) * 1992-07-24 1997-04-30 トヨタ自動車株式会社 内燃機関の排気浄化装置

Also Published As

Publication number Publication date
JPH07136514A (ja) 1995-05-30
EP0653238B1 (de) 2001-03-14
DE69426856D1 (de) 2001-04-19
EP0653238A1 (de) 1995-05-17
JP3409894B2 (ja) 2003-05-26
US5922293A (en) 1999-07-13

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Legal Events

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