JPS52120293A - Catalysts for oxidation and reduction - Google Patents

Catalysts for oxidation and reduction

Info

Publication number
JPS52120293A
JPS52120293A JP2661977A JP2661977A JPS52120293A JP S52120293 A JPS52120293 A JP S52120293A JP 2661977 A JP2661977 A JP 2661977A JP 2661977 A JP2661977 A JP 2661977A JP S52120293 A JPS52120293 A JP S52120293A
Authority
JP
Japan
Prior art keywords
catalysts
oxidation
reduction
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.)
Pending
Application number
JP2661977A
Other languages
Japanese (ja)
Inventor
Kaito Akuazu Geariijieemusu
Jiyon Kotsupaa Bearii
Harison Buraian
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.)
Johnson Matthey PLC
Original Assignee
Johnson Matthey PLC
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 GB9997/76A external-priority patent/GB1579733A/en
Application filed by Johnson Matthey PLC filed Critical Johnson Matthey PLC
Publication of JPS52120293A publication Critical patent/JPS52120293A/en
Pending 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
    • 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
    • B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/89—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble 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)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biomedical Technology (AREA)
  • Combustion & Propulsion (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
JP2661977A 1976-03-12 1977-03-12 Catalysts for oxidation and reduction Pending JPS52120293A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9997/76A GB1579733A (en) 1976-03-12 1976-03-12 Catalysts particularly for purification of exhaust gases
GB2514176 1976-06-17

Publications (1)

Publication Number Publication Date
JPS52120293A true JPS52120293A (en) 1977-10-08

Family

ID=26243317

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2661977A Pending JPS52120293A (en) 1976-03-12 1977-03-12 Catalysts for oxidation and reduction

Country Status (5)

Country Link
JP (1) JPS52120293A (en)
CA (1) CA1100470A (en)
DE (1) DE2710765A1 (en)
FR (1) FR2343505A1 (en)
SE (1) SE426787B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05245372A (en) * 1991-09-12 1993-09-24 Sekiyu Sangyo Kasseika Center Catalyst for catalytic reduction of nitrogen oxides

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2056424B (en) * 1979-08-08 1983-07-06 Johnson Matthey Co Ltd Decomposition of ozone
US4343776A (en) * 1980-12-22 1982-08-10 Engelhard Corporation Ozone abatement catalyst having improved durability and low temperature performance
JPS58156350A (en) * 1982-03-12 1983-09-17 Matsushita Electric Ind Co Ltd Apparatus for purifying exhaust gas
EP0174093B1 (en) * 1984-08-03 1989-10-18 Sievers Research, Inc. Method for selective conversion of organic compounds and detecting same by gas chromatography and chemiluminescence detection
JP2736099B2 (en) * 1989-02-06 1998-04-02 株式会社日本触媒 Diesel engine exhaust gas purification catalyst
JP2773428B2 (en) * 1990-11-28 1998-07-09 トヨタ自動車株式会社 Exhaust gas purification method
DE69206707T2 (en) * 1991-07-29 1996-05-09 Daihatsu Motor Co Ltd Exhaust gas purification catalyst and process for its manufacture
US5380692A (en) * 1991-09-12 1995-01-10 Sakai Chemical Industry Co., Ltd. Catalyst for catalytic reduction of nitrogen oxide
JP4092441B2 (en) * 1997-02-24 2008-05-28 日産自動車株式会社 Exhaust gas purification catalyst

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4852691A (en) * 1971-10-19 1973-07-24
GB1414133A (en) * 1971-11-18 1975-11-19 Johnson Matthey Co Ltd Catalysis
SE464798B (en) * 1973-10-24 1991-06-17 Johnson Matthey Co Ltd CATALYST CONTAINING A SUBSTRATE, AN INTERMEDIATE OXID LAYER AND A CATALYTIC LAYER
CA1077011A (en) * 1975-04-08 1980-05-06 Elrey L. Mccann (Iii) Catalytic metal oxides on perovskite supports

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05245372A (en) * 1991-09-12 1993-09-24 Sekiyu Sangyo Kasseika Center Catalyst for catalytic reduction of nitrogen oxides
JP2838336B2 (en) * 1991-09-12 1998-12-16 工業技術院長 Catalyst for catalytic reduction of nitrogen oxides

Also Published As

Publication number Publication date
SE426787B (en) 1983-02-14
DE2710765A1 (en) 1977-09-22
CA1100470A (en) 1981-05-05
FR2343505A1 (en) 1977-10-07
SE7702518L (en) 1977-09-13
FR2343505B1 (en) 1982-10-15

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