GB2023019B - Platinum thodium and palladium catalyst for automotive emission control - Google Patents

Platinum thodium and palladium catalyst for automotive emission control

Info

Publication number
GB2023019B
GB2023019B GB7900703A GB7900703A GB2023019B GB 2023019 B GB2023019 B GB 2023019B GB 7900703 A GB7900703 A GB 7900703A GB 7900703 A GB7900703 A GB 7900703A GB 2023019 B GB2023019 B GB 2023019B
Authority
GB
United Kingdom
Prior art keywords
thodium
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
GB7900703A
Other versions
GB2023019A (en
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 US05/875,616 external-priority patent/US4153579A/en
Application filed by Motors Liquidation Co filed Critical Motors Liquidation Co
Publication of GB2023019A publication Critical patent/GB2023019A/en
Application granted granted Critical
Publication of GB2023019B publication Critical patent/GB2023019B/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
    • 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
GB7900703A 1978-02-06 1979-01-09 Platinum thodium and palladium catalyst for automotive emission control Expired GB2023019B (en)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
GB2023019A GB2023019A (en) 1979-12-28
GB2023019B true GB2023019B (en) 1982-10-13

Family

ID=25366086

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7900703A Expired GB2023019B (en) 1978-02-06 1979-01-09 Platinum thodium and palladium catalyst for automotive emission control

Country Status (4)

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

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
BR112015018456B1 (en) * 2013-01-31 2020-12-08 Umicore Shokubai Japan Co., Ltd flue gas purification catalyst and flush gas purification method using said catalyst
FR3064500A1 (en) * 2017-03-29 2018-10-05 IFP Energies Nouvelles SELECTIVE HYROGENATION MULTILAYER CATALYST
JP7195995B2 (en) * 2019-03-27 2022-12-26 株式会社キャタラー Exhaust gas purification catalyst

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
AU524688B2 (en) 1982-09-30
DE2900951C2 (en) 1991-10-31
AU4328479A (en) 1979-08-16
GB2023019A (en) 1979-12-28
JPS54107492A (en) 1979-08-23
DE2900951A1 (en) 1979-08-09

Similar Documents

Publication Publication Date Title
GB2068988B (en) Platinum complex catalysts
AU502067B2 (en) Palladium catalyst
GB2014867B (en) Hydrogenation catalyst
AU2174383A (en) Doubly promoted platinum group metal catalyst for emission control
IL58015A (en) Catalytic composition and device for ozone control
AU516767B2 (en) Hydroformylation using improved catalysts comprising rhodium and diphosphino ligands
JPS5541894A (en) Alpha aluminaametal rhodium catalyst
ZA807159B (en) Catalyst,method for catayst manufacutre and use
JPS54116396A (en) Catalyst activation process
JPS53133594A (en) Hydrogenation catalyst and method
GB1547727A (en) Vehicle control system
GB2037178B (en) Hydroformylation and hydrohydroxymethylation catalysts
GB2018152B (en) Catalytic combustion
GR62444B (en) Emission control method and system
JPS5325936A (en) Catalyzer system heater
JPS55149651A (en) Hydrogenating catalyst
ZA777376B (en) Catalytic hydroreforming process
JPS531192A (en) Palladium catalysts and preparation therefor
ZA771750B (en) Hydrogenating catalyst and process for preparing same
GB2023019B (en) Platinum thodium and palladium catalyst for automotive emission control
GB2000985B (en) Automotive emission control catalyst and method for making same
AU4281778A (en) Catalyst delivery system
ZA7707269D (en) Catalytic hydroreforming process
JPS5452343A (en) Improvement on catalytic heater
GB2008429B (en) Platinum catalyst and method for making

Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Effective date: 19990108