CA2234355A1 - Engine exhaust gas catalyst - Google Patents

Engine exhaust gas catalyst

Info

Publication number
CA2234355A1
CA2234355A1 CA002234355A CA2234355A CA2234355A1 CA 2234355 A1 CA2234355 A1 CA 2234355A1 CA 002234355 A CA002234355 A CA 002234355A CA 2234355 A CA2234355 A CA 2234355A CA 2234355 A1 CA2234355 A1 CA 2234355A1
Authority
CA
Canada
Prior art keywords
oxide
finely divided
exhaust gas
engine exhaust
palladium
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.)
Granted
Application number
CA002234355A
Other languages
French (fr)
Other versions
CA2234355C (en
Inventor
Dieter Lindner
Lothar Mussmann
Renee Van Yperen
Thomas Kreuzer
Egbert Lox
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.)
Umicore AG and Co KG
Original Assignee
Degussa GmbH
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 Degussa GmbH filed Critical Degussa GmbH
Publication of CA2234355A1 publication Critical patent/CA2234355A1/en
Application granted granted Critical
Publication of CA2234355C publication Critical patent/CA2234355C/en
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
    • 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
    • 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
    • B01J23/89—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals
    • B01J23/8933—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals also combined with metals, or metal oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/894—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals also combined with metals, or metal oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 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
    • 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
    • B01J23/89—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals
    • B01J23/8933—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals also combined with metals, or metal oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/8946—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals also combined with metals, or metal 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
    • 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
    • B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product 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
    • 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
    • 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
    • B01J37/08—Heat treatment
    • 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
    • B01J37/16—Reducing
    • B01J37/18—Reducing with gases containing free hydrogen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/90—Physical characteristics of catalysts
    • B01D2255/908—O2-storage component incorporated in the 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
    • 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

Abstract

The invention relates to a single-layered three-way catalytic converter containing only palladium, with high activity and heat resistance. The catalyst contains, in addition to finely divided, stabilised aluminium oxide, at least one finely divided cerium/zirconium mixed oxide and optionally finely divided nickel oxide, as well as highly dispersed amounts of cerium oxide, zirconium oxide and barium oxide. The palladium is distributed largely uniformly throughout the entire catalyst.
CA002234355A 1997-04-09 1998-04-08 Engine exhaust gas catalyst Expired - Fee Related CA2234355C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19714536.1 1997-04-09
DE19714536A DE19714536A1 (en) 1997-04-09 1997-04-09 Car exhaust catalytic converter

Publications (2)

Publication Number Publication Date
CA2234355A1 true CA2234355A1 (en) 1998-10-09
CA2234355C CA2234355C (en) 2007-06-26

Family

ID=7825830

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002234355A Expired - Fee Related CA2234355C (en) 1997-04-09 1998-04-08 Engine exhaust gas catalyst

Country Status (16)

Country Link
EP (1) EP0870531B1 (en)
JP (1) JP3953630B2 (en)
KR (1) KR100661258B1 (en)
CN (1) CN1097481C (en)
AR (1) AR012344A1 (en)
AT (1) ATE266459T1 (en)
AU (1) AU728946B2 (en)
BR (1) BR9801385A (en)
CA (1) CA2234355C (en)
CZ (1) CZ100498A3 (en)
DE (2) DE19714536A1 (en)
PL (1) PL325733A1 (en)
RU (1) RU2211724C2 (en)
TR (1) TR199800611A2 (en)
TW (1) TW396056B (en)
ZA (1) ZA983002B (en)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19910663B4 (en) * 1999-03-11 2007-10-18 Volkswagen Ag Device and method for cleaning the exhaust gas of an internal combustion engine
DE50014200D1 (en) 2000-08-19 2007-05-10 Omg Ag & Co Kg Ceria-based oxygen storage material, process for its production and use in the exhaust gas purification of internal combustion engines
DE10050709A1 (en) * 2000-10-13 2002-04-25 Basf Ag Structured catalyst support, useful for the hydrogenation of aromatic compounds, contains a promoter comprising a Group I, II or IV metal or Group I-IV or VI metal and sulfur, selenium and carbon
KR100384015B1 (en) * 2000-12-02 2003-05-14 현대자동차주식회사 Improved NOx conversion and thermal durable Pd only three way catalyst
KR100410942B1 (en) * 2001-07-28 2003-12-18 현대자동차주식회사 A process of preparing the High porous Pd only Three way Catalyst
KR100410801B1 (en) * 2001-08-21 2003-12-18 현대자동차주식회사 High porous and HC removal Pd only Three way Catalyst
JP3758601B2 (en) 2002-05-15 2006-03-22 トヨタ自動車株式会社 NOx storage reduction catalyst
CN100374199C (en) * 2004-05-14 2008-03-12 中国科学院生态环境研究中心 Method for preparing palladium catalyst carried by composite oxides of Ce-Zr
CN100396363C (en) * 2004-11-25 2008-06-25 中国科学院生态环境研究中心 Three-efficiency catalyst and its preparation
CN100391598C (en) * 2006-06-20 2008-06-04 茂名学院 NOx storage and reduction catalyst for purifying tail-gas of internal-combustion engine
ES2475890T3 (en) 2006-10-23 2014-07-11 Haldor Topsøe A/S Method and apparatus for purifying the exhaust gas of a compression ignition engine
JP4327837B2 (en) 2006-12-01 2009-09-09 トヨタ自動車株式会社 Exhaust gas purification device
WO2009001902A1 (en) * 2007-06-27 2008-12-31 Toyota Jidosha Kabushiki Kaisha Catalyst carrier and exhaust gas purifying catalyst
US8038951B2 (en) * 2007-08-09 2011-10-18 Basf Corporation Catalyst compositions
US7790127B1 (en) * 2009-03-02 2010-09-07 Gm Global Technology Operations, Inc. NOx emission control system for hydrocarbon fueled power source
KR101922733B1 (en) * 2010-02-01 2018-11-27 존슨 맛쎄이 퍼블릭 리미티드 컴파니 Three way catalyst comprising extruded solid body
CN101773830B (en) * 2010-02-25 2012-06-27 华东理工大学 High-temperature stability catalyst used for three-effect catalysis
RU2480592C1 (en) * 2010-03-15 2013-04-27 Тойота Дзидося Кабусики Кайся Cleaning system of exhaust gas of internal combustion engine
CA2750738C (en) * 2010-03-15 2014-04-29 Toyota Jidosha Kabushiki Kaisha Exhaust purification system of internal combustion engine
EP2447488B1 (en) * 2010-08-30 2015-11-25 Toyota Jidosha Kabushiki Kaisha Exhaust gas purification device for internal combustion engine
DE102011119740A1 (en) * 2011-11-30 2013-06-06 Emitec Gesellschaft Für Emissionstechnologie Mbh Diffusion barrier layer in an exhaust gas treatment unit
JP5642107B2 (en) 2012-03-30 2014-12-17 本田技研工業株式会社 Saddle-type vehicle exhaust gas purification device and palladium single-layer catalyst used therefor
JP5992192B2 (en) 2012-03-30 2016-09-14 三井金属鉱業株式会社 Palladium catalyst
DE102013210270A1 (en) 2013-06-03 2014-12-04 Umicore Ag & Co. Kg three-way
DE102014204682A1 (en) 2014-03-13 2015-10-01 Umicore Ag & Co. Kg Catalyst system for reducing noxious gases from gasoline internal combustion engines
CN104353466A (en) * 2014-09-25 2015-02-18 陕西华陆化工环保有限公司 Preparation method for catalyst for automobile exhaust catalytic oxidation
US9616386B2 (en) * 2015-03-23 2017-04-11 Kabushiki Kaisha Toyota Chuo Kenkyusho Catalyst for purification of exhaust gas, NOx storage-reduction catalyst, and method for purifying exhaust gas
CN107597127A (en) * 2017-08-16 2018-01-19 柳州申通汽车科技有限公司 A kind of ternary catalyst for automobile tail gas
CN107597112A (en) * 2017-08-16 2018-01-19 柳州申通汽车科技有限公司 A kind of automobile using three-way catalyst
CN109847739B (en) * 2019-03-26 2021-06-01 福州大学 Method for modifying Pd/gamma-aluminum oxide catalyst
CN109999804B (en) * 2019-05-06 2020-07-17 昆明理工大学 CO reduction SO2Catalyst, preparation method and application thereof
CN112371118B (en) * 2020-11-27 2023-02-24 中自环保科技股份有限公司 Efficient automobile exhaust treatment catalyst and preparation method thereof

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US4624940A (en) * 1985-04-12 1986-11-25 Engelhard Corporation High temperature catalyst compositions for internal combustion engine
JP2537239B2 (en) * 1987-08-28 1996-09-25 エヌ・イーケムキヤツト 株式会社 Exhaust gas purification catalyst for internal combustion engine excellent in heat resistance and method for producing the same
US5015617A (en) * 1988-04-14 1991-05-14 Nippon Shokubai Kagaku Kogyo Co., Ltd. Catalyst for purifying exhaust gas and method for production thereof
CA2064977C (en) * 1991-04-05 1998-09-22 Eiichi Shiraishi Catalyst for purifying exhaust gas
JP3264696B2 (en) * 1991-09-13 2002-03-11 株式会社日本触媒 Exhaust gas purification catalyst and purification system using the same
US5212142A (en) * 1991-11-04 1993-05-18 Engelhard Corporation High performance thermally stable catalyst
JP3145175B2 (en) * 1992-03-31 2001-03-12 三井金属鉱業株式会社 Exhaust gas purification catalyst and method for producing the same

Also Published As

Publication number Publication date
MX9802824A (en) 1998-12-31
EP0870531A1 (en) 1998-10-14
AU6075398A (en) 1998-10-15
RU2211724C2 (en) 2003-09-10
TR199800611A3 (en) 1999-07-21
KR19980081167A (en) 1998-11-25
DE59811353D1 (en) 2004-06-17
JP3953630B2 (en) 2007-08-08
CN1097481C (en) 2003-01-01
TW396056B (en) 2000-07-01
CN1206628A (en) 1999-02-03
EP0870531B1 (en) 2004-05-12
ZA983002B (en) 1998-10-21
CA2234355C (en) 2007-06-26
PL325733A1 (en) 1998-10-12
AR012344A1 (en) 2000-10-18
BR9801385A (en) 1999-08-03
CZ100498A3 (en) 1998-10-14
KR100661258B1 (en) 2007-05-17
TR199800611A2 (en) 1999-07-21
ATE266459T1 (en) 2004-05-15
DE19714536A1 (en) 1998-10-15
AU728946B2 (en) 2001-01-18
JPH10277394A (en) 1998-10-20

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