AU524724B2 - Automotive emission control catalyst and method for making same - Google Patents

Automotive emission control catalyst and method for making same

Info

Publication number
AU524724B2
AU524724B2 AU38039/78A AU3803978A AU524724B2 AU 524724 B2 AU524724 B2 AU 524724B2 AU 38039/78 A AU38039/78 A AU 38039/78A AU 3803978 A AU3803978 A AU 3803978A AU 524724 B2 AU524724 B2 AU 524724B2
Authority
AU
Australia
Prior art keywords
emission control
making same
control catalyst
automotive emission
automotive
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
AU38039/78A
Other versions
AU3803978A (en
Inventor
Curtis Summers And Louis Hegedus Jack
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
Motors Liquidation Co
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 US05/871,706 external-priority patent/US4128506A/en
Application filed by Motors Liquidation Co filed Critical Motors Liquidation Co
Publication of AU3803978A publication Critical patent/AU3803978A/en
Application granted granted Critical
Publication of AU524724B2 publication Critical patent/AU524724B2/en
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
    • 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
    • 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
    • B01J37/02—Impregnation, coating or precipitation
    • B01J37/024—Multiple impregnation or coating
    • B01J37/0244—Coatings comprising several 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (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)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
AU38039/78A 1977-07-15 1978-07-14 Automotive emission control catalyst and method for making same Expired AU524724B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US81598277A 1977-07-15 1977-07-15
USUS815982 1977-07-15
USUS871706 1978-01-23
US05/871,706 US4128506A (en) 1978-01-23 1978-01-23 Platinum-rhodium catalyst for automotive emission control

Publications (2)

Publication Number Publication Date
AU3803978A AU3803978A (en) 1980-01-17
AU524724B2 true AU524724B2 (en) 1982-09-30

Family

ID=27124012

Family Applications (1)

Application Number Title Priority Date Filing Date
AU38039/78A Expired AU524724B2 (en) 1977-07-15 1978-07-14 Automotive emission control catalyst and method for making same

Country Status (4)

Country Link
JP (1) JPS5419494A (en)
AU (1) AU524724B2 (en)
DE (1) DE2830686A1 (en)
GB (1) GB2000985B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2023019B (en) * 1978-02-06 1982-10-13 Gen Motors Corp Platinum thodium and palladium catalyst for automotive emission control
SE462143C (en) * 1988-03-07 1996-01-18 Heraeus Gmbh W C Catalytic converter for car exhaust cleaning, process for its preparation and use thereof
US5131224A (en) * 1990-07-23 1992-07-21 General Motors Corporation Method for reducing methane exhaust emissions from natural gas fueled engines
KR100756025B1 (en) * 2006-08-28 2007-09-07 희성엥겔하드주식회사 A catalyst system with three layers for purifying the exhaust gases from internal engines
GB201303396D0 (en) 2013-02-26 2013-04-10 Johnson Matthey Plc Oxidation catalyst for a combustion engine
FR3064500A1 (en) * 2017-03-29 2018-10-05 IFP Energies Nouvelles SELECTIVE HYROGENATION MULTILAYER CATALYST

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3931054A (en) * 1974-04-19 1976-01-06 Universal Oil Products Company Method of catalyst manufacture

Also Published As

Publication number Publication date
JPS5419494A (en) 1979-02-14
GB2000985B (en) 1982-02-24
AU3803978A (en) 1980-01-17
DE2830686A1 (en) 1979-02-01
GB2000985A (en) 1979-01-24

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