DE69412780T2 - Dreiwegkatalysator mit Pt, Rh und Pd, alle mit separatem Träger - Google Patents

Dreiwegkatalysator mit Pt, Rh und Pd, alle mit separatem Träger

Info

Publication number
DE69412780T2
DE69412780T2 DE69412780T DE69412780T DE69412780T2 DE 69412780 T2 DE69412780 T2 DE 69412780T2 DE 69412780 T DE69412780 T DE 69412780T DE 69412780 T DE69412780 T DE 69412780T DE 69412780 T2 DE69412780 T2 DE 69412780T2
Authority
DE
Germany
Prior art keywords
way catalyst
separate supports
supports
separate
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
DE69412780T
Other languages
English (en)
Other versions
DE69412780D1 (de
Inventor
Constantinos G Vayenas
Xenophon E Verykios
Ioannis B Yentekakis
Evangelos G Papadakis
Constantinos A Pliangos
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of DE69412780D1 publication Critical patent/DE69412780D1/de
Publication of DE69412780T2 publication Critical patent/DE69412780T2/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
    • 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
    • B01J23/38—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
    • B01J23/64—Platinum group metals with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/652—Chromium, molybdenum or tungsten
    • B01J23/6527—Tungsten
    • 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
    • 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
    • B01D2255/207—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
    • B01D2255/20776—Tungsten
    • 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
    • B01D2255/9025—Three layers
    • 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
DE69412780T 1994-01-28 1994-01-28 Dreiwegkatalysator mit Pt, Rh und Pd, alle mit separatem Träger Expired - Fee Related DE69412780T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP94600002A EP0665047B1 (de) 1994-01-28 1994-01-28 Dreiwegkatalysator mit Pt, Rh und Pd, alle mit separatem Träger

Publications (2)

Publication Number Publication Date
DE69412780D1 DE69412780D1 (de) 1998-10-01
DE69412780T2 true DE69412780T2 (de) 1999-05-12

Family

ID=8218180

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69412780T Expired - Fee Related DE69412780T2 (de) 1994-01-28 1994-01-28 Dreiwegkatalysator mit Pt, Rh und Pd, alle mit separatem Träger

Country Status (2)

Country Link
EP (1) EP0665047B1 (de)
DE (1) DE69412780T2 (de)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GR1002923B (el) * 1997-01-24 1998-06-16 Καταλυτες για την καυση πτητικων οργανικων ενωσεων (vocs)
US6440895B1 (en) * 1998-07-27 2002-08-27 Battelle Memorial Institute Catalyst, method of making, and reactions using the catalyst
US6492297B1 (en) 2000-09-15 2002-12-10 Engelhard Corporation Catalyst composition for purifying exhaust gas
JP2004041852A (ja) * 2002-07-09 2004-02-12 Ngk Insulators Ltd 触媒用担体及び触媒体
US7325392B2 (en) 2002-07-12 2008-02-05 Catelectric Corp. Control system for catalytic processes
US7950221B2 (en) 2003-04-25 2011-05-31 Catelectric Corp. Methods and apparatus for controlling catalytic processes, including catalyst regeneration and soot elimination
KR100781670B1 (ko) * 2006-08-16 2007-12-03 희성촉매 주식회사 극소량의 로듐 또는 로듐을 포함하지 않는 내연기관배기가스 정화용 촉매
US8007750B2 (en) 2007-07-19 2011-08-30 Basf Corporation Multilayered catalyst compositions
US7922988B2 (en) 2007-08-09 2011-04-12 Michel Deeba Multilayered catalyst compositions
US7622096B2 (en) * 2007-08-09 2009-11-24 Basf Catalysts Llc Multilayered catalyst compositions
US7964084B2 (en) 2007-09-20 2011-06-21 Catelectric Corp. Methods and apparatus for the synthesis of useful compounds
WO2009139852A1 (en) 2008-05-12 2009-11-19 Catelectric Corp. Methods and apparatus for controlling catalytic processes, including the deposition of carbon based particles
EP2368630A4 (de) * 2008-12-19 2013-07-31 Cataler Corp Abgasreinigungskatalysator
US10773209B2 (en) 2009-02-20 2020-09-15 Basf Corporation Aging-resistant catalyst article for internal combustion engines
US8833064B2 (en) * 2009-11-06 2014-09-16 Basf Corporation Small engine layered catalyst article and method of making
US9266092B2 (en) 2013-01-24 2016-02-23 Basf Corporation Automotive catalyst composites having a two-metal layer
WO2024023487A1 (en) 2022-07-28 2024-02-01 Johnson Matthey Public Limited Company Catalytic filter for gasoline engine exhaust treatment

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2595265B1 (fr) * 1986-03-07 1992-10-09 Pro Catalyse Catalyseur et procede pour le traitement des gaz d'echappement des moteurs a combustion interne
US4977129A (en) * 1989-03-13 1990-12-11 W. R Grace & Co.-Conn. Auto exhaust catalyst composition having low H2 S emissions and method of making the catalyst
CA2011484C (en) * 1989-04-19 1997-03-04 Joseph C. Dettling Palladium-containing, ceria-supported platinum catalyst and catalyst assembly including the same
US5232890A (en) * 1990-01-02 1993-08-03 Ganguli Partha S Precious metal catalysts with oxygen-ion conducting support
US5057483A (en) * 1990-02-22 1991-10-15 Engelhard Corporation Catalyst composition containing segregated platinum and rhodium components
US5212142A (en) * 1991-11-04 1993-05-18 Engelhard Corporation High performance thermally stable catalyst

Also Published As

Publication number Publication date
EP0665047A1 (de) 1995-08-02
EP0665047B1 (de) 1998-08-26
DE69412780D1 (de) 1998-10-01

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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