WO2010001226A8 - Layered exhaust gas purification catalyst comprising different noble metals - Google Patents

Layered exhaust gas purification catalyst comprising different noble metals Download PDF

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Publication number
WO2010001226A8
WO2010001226A8 PCT/IB2009/006122 IB2009006122W WO2010001226A8 WO 2010001226 A8 WO2010001226 A8 WO 2010001226A8 IB 2009006122 W IB2009006122 W IB 2009006122W WO 2010001226 A8 WO2010001226 A8 WO 2010001226A8
Authority
WO
WIPO (PCT)
Prior art keywords
exhaust gas
catalyst layer
gas purification
purification catalyst
noble metals
Prior art date
Application number
PCT/IB2009/006122
Other languages
French (fr)
Other versions
WO2010001226A1 (en
Inventor
Tomoaki Sunada
Toshitaka Tanabe
Naoki Takahashi
Hirohisa Tanaka
Mari Uenishi
Masashi Taniguchi
Shingo Sakagami
Masaaki Kawai
Hirotaka Ori
Original Assignee
Toyota Jidosha Kabushiki Kaisha
Daihatsu Motor Co., Ltd.
Cataler Corporation
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 Jidosha Kabushiki Kaisha, Daihatsu Motor Co., Ltd., Cataler Corporation filed Critical Toyota Jidosha Kabushiki Kaisha
Publication of WO2010001226A1 publication Critical patent/WO2010001226A1/en
Publication of WO2010001226A8 publication Critical patent/WO2010001226A8/en

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    • 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
    • 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
    • B01J23/002—Mixed oxides other than spinels, e.g. perovskite
    • 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
    • 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
    • B01J23/46—Ruthenium, rhodium, osmium or iridium
    • B01J23/464—Rhodium
    • 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
    • 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
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/204—Alkaline earth metals
    • B01D2255/2042—Barium
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/209—Other metals
    • B01D2255/2092—Aluminium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/40—Mixed oxides
    • B01D2255/407—Zr-Ce mixed oxides
    • 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
    • B01D2258/00—Sources of waste gases
    • B01D2258/01—Engine exhaust gases
    • B01D2258/014—Stoichiometric gasoline engines
    • 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
    • B01D53/9459—Removing one or more of nitrogen oxides, carbon monoxide, or hydrocarbons by multiple successive catalytic functions; systems with more than one different function, e.g. zone coated catalysts
    • B01D53/9477—Removing one or more of nitrogen oxides, carbon monoxide, or hydrocarbons by multiple successive catalytic functions; systems with more than one different function, e.g. zone coated catalysts with catalysts positioned on separate bricks, e.g. exhaust systems
    • 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
    • B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
    • 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
    • B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
    • B01J35/56—Foraminous structures having flow-through passages or channels, e.g. grids or three-dimensional monoliths
    • 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
    • Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
    • Y02C20/00—Capture or disposal of greenhouse gases
    • Y02C20/10—Capture or disposal of greenhouse gases of nitrous oxide (N2O)
    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (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)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Catalysts (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

An exhaust gas purification catalyst includes a base material having a gas passage through which exhaust gas flows, a lower catalyst layer formed on a surface of the base material, and an upper catalyst layer that is formed on a surface of the lower catalyst layer. The upper catalyst layer supports Rh. The lower catalyst layer is formed by a Pd support layer that supports Pd and/or a Pt support layer that supports Pt. A length of the upper catalyst layer in a gas flow direction is less than a length of the lower catalyst layer in the gas flow direction.
PCT/IB2009/006122 2008-06-30 2009-06-29 Layered exhaust gas purification catalyst comprising different noble metals WO2010001226A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2008-170808 2008-06-30
JP2008170808A JP4751917B2 (en) 2008-06-30 2008-06-30 Exhaust gas purification catalyst

Publications (2)

Publication Number Publication Date
WO2010001226A1 WO2010001226A1 (en) 2010-01-07
WO2010001226A8 true WO2010001226A8 (en) 2010-03-11

Family

ID=41057369

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2009/006122 WO2010001226A1 (en) 2008-06-30 2009-06-29 Layered exhaust gas purification catalyst comprising different noble metals

Country Status (2)

Country Link
JP (1) JP4751917B2 (en)
WO (1) WO2010001226A1 (en)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2011118047A1 (en) * 2010-03-24 2013-07-04 トヨタ自動車株式会社 Exhaust gas purification catalyst
US8557204B2 (en) * 2010-11-22 2013-10-15 Umicore Ag & Co. Kg Three-way catalyst having an upstream single-layer catalyst
JP5287884B2 (en) * 2011-01-27 2013-09-11 トヨタ自動車株式会社 Exhaust gas purification catalyst
WO2012140775A1 (en) * 2011-04-15 2012-10-18 トヨタ自動車株式会社 Exhaust cleaner for internal combustion engine
JP5720949B2 (en) * 2011-12-08 2015-05-20 トヨタ自動車株式会社 Exhaust gas purification catalyst
JP5780247B2 (en) 2013-01-23 2015-09-16 トヨタ自動車株式会社 Catalytic converter
JP5757297B2 (en) 2013-01-23 2015-07-29 トヨタ自動車株式会社 Catalytic converter
JP5888259B2 (en) 2013-02-13 2016-03-16 トヨタ自動車株式会社 Catalytic converter
JP5821887B2 (en) 2013-04-03 2015-11-24 トヨタ自動車株式会社 Catalytic converter
JP6133836B2 (en) 2014-12-12 2017-05-24 トヨタ自動車株式会社 Exhaust gas purification catalyst
JP6133835B2 (en) * 2014-12-12 2017-05-24 トヨタ自動車株式会社 Exhaust gas purification catalyst
JP6034356B2 (en) * 2014-12-12 2016-11-30 トヨタ自動車株式会社 Exhaust gas purification catalyst
CN109789397B (en) 2016-07-20 2021-12-10 优美科触媒日本有限公司 Catalyst for purifying exhaust gas of internal combustion engine and method for purifying exhaust gas using the same
US10967362B2 (en) 2016-07-20 2021-04-06 Umicore Shokubai Japan Co., Ltd. Catalyst for purification of exhaust gas from internal combustion engine and method for purification of exhaust gas using the catalyst
CN110785231B (en) 2017-04-28 2022-09-23 优美科触媒日本有限公司 Exhaust gas purifying catalyst and exhaust gas purifying method using same
JP6889252B2 (en) 2017-04-28 2021-06-18 ユミコア日本触媒株式会社 Exhaust gas purification catalyst and exhaust gas purification method using it
WO2018199250A1 (en) 2017-04-28 2018-11-01 ユミコア日本触媒株式会社 Exhaust gas purification catalyst and exhaust gas purification method using same
JP7451402B2 (en) 2017-12-08 2024-03-18 ジョンソン マッセイ （シャンハイ） ケミカルズ リミテッド New multi-field TWC for exhaust gas treatment from gasoline engines
US11110436B2 (en) 2017-12-28 2021-09-07 Umicore Shokubai Japan Co., Ltd. Phosphorus compound-containing exhaust gas purifying catalyst
JP7195995B2 (en) 2019-03-27 2022-12-26 株式会社キャタラー Exhaust gas purification catalyst
JP6775052B2 (en) * 2019-03-27 2020-10-28 株式会社キャタラー Exhaust gas purification catalyst
BR112022011865A2 (en) * 2019-12-19 2022-09-06 Basf Corp ARTICLE OF CATALYST, PROCESSES FOR PREPARING AN ARTICLE OF CATALYST, APPARATUS FOR PREPARING THE CATALYTIC ARTICLE, EXHAUST SYSTEM, METHODS FOR TREATMENT AN EXHAUST CURRENT AND FOR REDUCING LEVELS OF HYDROCARBONS, CARBON MONOXIDE AND NITROGEN OXIDE AND USE OF CATALYST
JP7434489B1 (en) * 2022-10-18 2024-02-20 株式会社キャタラー Exhaust gas purification catalyst and catalyst body using the same

Family Cites Families (9)

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JPS6384635A (en) * 1986-09-26 1988-04-15 Nissan Motor Co Ltd Catalyst for purifying exhaust gas
JPS63236541A (en) * 1987-03-24 1988-10-03 Nissan Motor Co Ltd Catalyst for purifying exhaust gas
JPH05293384A (en) * 1992-04-15 1993-11-09 Nissan Motor Co Ltd Catalyst for purifying exhaust gas and method therefor
US5376610A (en) * 1992-04-15 1994-12-27 Nissan Motor Co., Ltd. Catalyst for exhaust gas purification and method for exhaust gas purification
JP4015328B2 (en) * 1999-09-14 2007-11-28 ダイハツ工業株式会社 Exhaust gas purification catalyst
JP3724708B2 (en) * 1999-11-26 2005-12-07 日産自動車株式会社 Exhaust gas purification catalyst
JP4350250B2 (en) * 2000-01-27 2009-10-21 株式会社キャタラー Exhaust gas purification catalyst
US20040001781A1 (en) * 2002-06-27 2004-01-01 Engelhard Corporation Multi-zone catalytic converter
JP4238056B2 (en) * 2003-03-31 2009-03-11 三井金属鉱業株式会社 Layered catalyst for exhaust gas purification

Also Published As

Publication number Publication date
JP4751917B2 (en) 2011-08-17
JP2010005590A (en) 2010-01-14
WO2010001226A1 (en) 2010-01-07

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