AU524688B2 - Platinum, rhodium and palladium catalyst for automotive emission control - Google Patents

Platinum, rhodium and palladium catalyst for automotive emission control

Info

Publication number
AU524688B2
AU524688B2 AU43284/79A AU4328479A AU524688B2 AU 524688 B2 AU524688 B2 AU 524688B2 AU 43284/79 A AU43284/79 A AU 43284/79A AU 4328479 A AU4328479 A AU 4328479A AU 524688 B2 AU524688 B2 AU 524688B2
Authority
AU
Australia
Prior art keywords
rhodium
platinum
emission control
palladium catalyst
automotive emission
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
Application number
AU43284/79A
Other languages
English (en)
Other versions
AU4328479A (en
Inventor
Louis Hegedus
Jack Curtis Summers
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.)
Motors Liquidation Co
Original Assignee
General Motors 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
Priority claimed from US05/875,616 external-priority patent/US4153579A/en
Application filed by General Motors Corp filed Critical General Motors Corp
Publication of AU4328479A publication Critical patent/AU4328479A/en
Application granted granted Critical
Publication of AU524688B2 publication Critical patent/AU524688B2/en
Anticipated expiration legal-status Critical
Expired 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
    • 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
    • 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
    • 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)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Materials Engineering (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)
AU43284/79A 1978-02-06 1979-01-11 Platinum, rhodium and palladium catalyst for automotive emission control Expired AU524688B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/875,616 US4153579A (en) 1978-01-23 1978-02-06 Platinum, rhodium, and palladium catalyst for automotive emission control
US875616 1978-02-06

Publications (2)

Publication Number Publication Date
AU4328479A AU4328479A (en) 1979-08-16
AU524688B2 true AU524688B2 (en) 1982-09-30

Family

ID=25366086

Family Applications (1)

Application Number Title Priority Date Filing Date
AU43284/79A Expired AU524688B2 (en) 1978-02-06 1979-01-11 Platinum, rhodium and palladium catalyst for automotive emission control

Country Status (4)

Country Link
JP (1) JPS54107492A (OSRAM)
AU (1) AU524688B2 (OSRAM)
DE (1) DE2900951A1 (OSRAM)
GB (1) GB2023019B (OSRAM)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5212142A (en) * 1991-11-04 1993-05-18 Engelhard Corporation High performance thermally stable catalyst
US9433927B2 (en) 2013-01-31 2016-09-06 Umicore Shokubai Japan Co., Ltd. Exhaust gas purification catalyst and exhaust gas purification method using said catalyst
FR3064500A1 (fr) * 2017-03-29 2018-10-05 IFP Energies Nouvelles Catalyseur en multicouches d'hyrogenation selective
JP7195995B2 (ja) 2019-03-27 2022-12-26 株式会社キャタラー 排ガス浄化用触媒

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3257163A (en) * 1965-02-12 1966-06-21 Du Pont Method of treating automobile exhaust gases
GB2000985B (en) * 1977-07-15 1982-02-24 Gen Motors Corp Automotive emission control catalyst and method for making same

Also Published As

Publication number Publication date
AU4328479A (en) 1979-08-16
DE2900951C2 (OSRAM) 1991-10-31
GB2023019A (en) 1979-12-28
JPS54107492A (en) 1979-08-23
GB2023019B (en) 1982-10-13
DE2900951A1 (de) 1979-08-09

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