DE69118825D1 - Verfahren zur katalytischen Reinigung von Abgasen - Google Patents

Verfahren zur katalytischen Reinigung von Abgasen

Info

Publication number
DE69118825D1
DE69118825D1 DE69118825T DE69118825T DE69118825D1 DE 69118825 D1 DE69118825 D1 DE 69118825D1 DE 69118825 T DE69118825 T DE 69118825T DE 69118825 T DE69118825 T DE 69118825T DE 69118825 D1 DE69118825 D1 DE 69118825D1
Authority
DE
Germany
Prior art keywords
exhaust gases
catalytic purification
catalytic
purification
gases
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
DE69118825T
Other languages
English (en)
Other versions
DE69118825T2 (de
Inventor
Hideaki Muraki
Tokuta Inoue
Kiyohiko Oishi
Kenji Katoh
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
Original Assignee
Toyota Motor Corp
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 filed Critical Toyota Motor Corp
Publication of DE69118825D1 publication Critical patent/DE69118825D1/de
Application granted granted Critical
Publication of DE69118825T2 publication Critical patent/DE69118825T2/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
    • 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
    • B01D53/9418—Processes characterised by a specific catalyst for removing nitrogen oxides by selective catalytic reduction [SCR] using a reducing agent in a lean exhaust gas
    • 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
    • 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
    • B01D2255/206—Rare earth metals
    • B01D2255/2063—Lanthanum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/206—Rare earth metals
    • B01D2255/2065—Cerium
    • 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
    • B01D2255/20—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
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20769—Molybdenum
    • 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)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Combustion & Propulsion (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
DE69118825T 1990-11-28 1991-11-27 Verfahren zur katalytischen Reinigung von Abgasen Expired - Fee Related DE69118825T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2322638A JP2773428B2 (ja) 1990-11-28 1990-11-28 排気ガス浄化方法

Publications (2)

Publication Number Publication Date
DE69118825D1 true DE69118825D1 (de) 1996-05-23
DE69118825T2 DE69118825T2 (de) 1996-09-26

Family

ID=18145943

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69118825T Expired - Fee Related DE69118825T2 (de) 1990-11-28 1991-11-27 Verfahren zur katalytischen Reinigung von Abgasen

Country Status (4)

Country Link
US (1) US5294421A (de)
EP (1) EP0488250B1 (de)
JP (1) JP2773428B2 (de)
DE (1) DE69118825T2 (de)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6010673A (en) * 1992-09-21 2000-01-04 Toyota Jidosha Kabushiki Kaisha Method for purifying exhaust gas
US6248684B1 (en) 1992-11-19 2001-06-19 Englehard Corporation Zeolite-containing oxidation catalyst and method of use
US6087295A (en) 1992-12-14 2000-07-11 Asec Manufacturing Reduction of NOx in the exhaust gases from internal combustion engines containing excess oxygen
EP0613714B1 (de) * 1993-01-11 2001-07-04 Toyota Jidosha Kabushiki Kaisha Verfahren zur Reinigung von Abgasen
TW309448B (de) * 1993-05-24 1997-07-01 Goal Line Environmental Tech
JP3291086B2 (ja) * 1993-09-24 2002-06-10 トヨタ自動車株式会社 排ガス浄化用触媒及び排ガス浄化方法
JP3409894B2 (ja) * 1993-11-17 2003-05-26 トヨタ自動車株式会社 排ガス浄化用触媒及び排ガス浄化方法
FI94843C (fi) * 1993-12-20 1995-11-10 Kemira Oy Katalyytti bensiinimoottorin pakokaasujen puhdistukseen ja menetelmä sen valmistamiseksi
EP0707882A1 (de) * 1994-10-21 1996-04-24 Toyota Jidosha Kabushiki Kaisha Katalysator zum Reinigen von Abgasen
JPH08182918A (ja) * 1994-12-28 1996-07-16 Kawasaki Heavy Ind Ltd 微粉炭素による流動層脱硝方法及び装置
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
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
JP4092441B2 (ja) * 1997-02-24 2008-05-28 日産自動車株式会社 排ガス浄化用触媒
US20020032123A1 (en) * 2000-02-23 2002-03-14 Ford Global Technologies, Inc. Exhaust gas catalyst and method of manufacturing same
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
FI118418B (fi) 2003-04-17 2007-11-15 Ecocat Oy Alumiinioksidipohjainen katalyytti poistekaasujen puhdistukseen
JP4589032B2 (ja) * 2004-05-28 2010-12-01 戸田工業株式会社 排気ガス浄化用触媒及び同触媒用酸素吸蔵材
JP2006068728A (ja) * 2004-08-03 2006-03-16 Mazda Motor Corp 排気ガス浄化触媒
JP5100085B2 (ja) * 2006-10-31 2012-12-19 株式会社キャタラー 排ガス浄化用触媒
US8148295B2 (en) * 2009-02-16 2012-04-03 Millennium Inorganic Chemicals, Inc. Catalyst promoters in vanadium-free mobile catalyst

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3346328A (en) * 1967-03-30 1967-10-10 Francis J Sergeys Method of treating exhaust gases
US3755534A (en) * 1971-08-12 1973-08-28 Grace W R & Co Catalytic control of auto exhaust emissions
US4407785A (en) * 1972-11-28 1983-10-04 Engelhard Corporation Method of conducting catalytically promoted gas-phase reactions
SE426787B (sv) * 1976-03-12 1983-02-14 Johnson Matthey Co Ltd Katalysatoranordning
JPS5482392A (en) * 1977-12-14 1979-06-30 Mitsui Toatsu Chem Inc Nitrogen oxides removing catalyst
US4297328A (en) * 1979-09-28 1981-10-27 Union Carbide Corporation Three-way catalytic process for gaseous streams
JPS60125250A (ja) * 1983-12-08 1985-07-04 Shiyuuichi Kagawa 窒素酸化物の接触分解触媒及びその使用方法
CA1236522A (en) * 1984-08-07 1988-05-10 Harald Stasch Switched power supply comprising a free-running flow transformer without control loop
JPS62204846A (ja) * 1986-03-04 1987-09-09 Toyota Central Res & Dev Lab Inc 触媒の製造方法
DE3634243A1 (de) * 1986-10-08 1988-04-21 Kali Chemie Ag Zeolith-katalysator und verfahren zur katalytischen reduktion von stickoxiden
JPH0611381B2 (ja) * 1986-10-17 1994-02-16 株式会社豊田中央研究所 排ガス浄化方法
US4904633A (en) * 1986-12-18 1990-02-27 Nippon Shokubai Kagaku Kogyo Co., Ltd. Catalyst for purifying exhaust gas and method for production thereof
US4839146A (en) * 1987-04-15 1989-06-13 General Motors Corporation Catalyst for simultaneous NO decomposition and CO oxidation under cycled operating conditions
DE3713169A1 (de) * 1987-04-17 1988-11-03 Bayer Ag Verfahren und vorrichtung zur reduktion von stickoxiden
JPS6470146A (en) * 1987-06-24 1989-03-15 Toyota Motor Corp Catalyst for purifying exhaust gas
US4867954A (en) * 1988-04-07 1989-09-19 Uop Catalytic reduction of nitrogen oxides
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
DE3830319C1 (de) * 1988-09-07 1989-07-20 Degussa Ag, 6000 Frankfurt, De
JPH0724774B2 (ja) * 1988-11-25 1995-03-22 株式会社日本触媒 排ガス処理触媒用担体、その製造方法ならびに該担体を含有してなる排ガス処理用触媒
JP2766665B2 (ja) * 1989-04-24 1998-06-18 キャタラー工業株式会社 排ガス浄化用触媒の製造方法

Also Published As

Publication number Publication date
EP0488250B1 (de) 1996-04-17
JPH04193345A (ja) 1992-07-13
JP2773428B2 (ja) 1998-07-09
EP0488250A1 (de) 1992-06-03
US5294421A (en) 1994-03-15
DE69118825T2 (de) 1996-09-26

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee