FR2343505B1 - - Google Patents

Info

Publication number
FR2343505B1
FR2343505B1 FR7706973A FR7706973A FR2343505B1 FR 2343505 B1 FR2343505 B1 FR 2343505B1 FR 7706973 A FR7706973 A FR 7706973A FR 7706973 A FR7706973 A FR 7706973A FR 2343505 B1 FR2343505 B1 FR 2343505B1
Authority
FR
France
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
FR7706973A
Other versions
FR2343505A1 (fr
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 FR2343505A1 publication Critical patent/FR2343505A1/fr
Application granted granted Critical
Publication of FR2343505B1 publication Critical patent/FR2343505B1/fr
Granted 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)
  • 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)
FR7706973A 1976-03-12 1977-03-09 Catalyseur pour l'oxydation et la reduction catalytiques des constituants d'un gaz Granted FR2343505A1 (fr)

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 (2)

Publication Number Publication Date
FR2343505A1 FR2343505A1 (fr) 1977-10-07
FR2343505B1 true FR2343505B1 (fr) 1982-10-15

Family

ID=26243317

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7706973A Granted FR2343505A1 (fr) 1976-03-12 1977-03-09 Catalyseur pour l'oxydation et la reduction catalytiques des constituants d'un gaz

Country Status (5)

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

Families Citing this family (10)

* 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 (ja) * 1982-03-12 1983-09-17 Matsushita Electric Ind Co Ltd 排ガス浄化装置
DE3573770D1 (en) * 1984-08-03 1989-11-23 Sievers Res Inc Method for selective conversion of organic compounds and detecting same by gas chromatography and chemiluminescence detection
JP2736099B2 (ja) * 1989-02-06 1998-04-02 株式会社日本触媒 ディーゼルエンジン排ガス浄化用触媒
JP2773428B2 (ja) * 1990-11-28 1998-07-09 トヨタ自動車株式会社 排気ガス浄化方法
EP0525677B1 (fr) * 1991-07-29 1995-12-13 Daihatsu Motor Company, Ltd. Catalyseur pour la purification des effluents gazeux et méthode pour sa préparation
US5380692A (en) * 1991-09-12 1995-01-10 Sakai Chemical Industry Co., Ltd. Catalyst for catalytic reduction of nitrogen oxide
JP2838336B2 (ja) * 1991-09-12 1998-12-16 工業技術院長 窒素酸化物接触還元用触媒
JP4092441B2 (ja) * 1997-02-24 2008-05-28 日産自動車株式会社 排ガス浄化用触媒

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4852691A (fr) * 1971-10-19 1973-07-24
GB1414133A (en) * 1971-11-18 1975-11-19 Johnson Matthey Co Ltd Catalysis
SE464798B (sv) * 1973-10-24 1991-06-17 Johnson Matthey Co Ltd Katalysator innefattande ett substrat, ett mellanliggande oxidskikt och ett katalytiskt skikt
CA1077011A (fr) * 1975-04-08 1980-05-06 Elrey L. Mccann (Iii) Oxydes de metal catalytiques sur supports de perovskite

Also Published As

Publication number Publication date
FR2343505A1 (fr) 1977-10-07
SE7702518L (sv) 1977-09-13
CA1100470A (fr) 1981-05-05
DE2710765A1 (de) 1977-09-22
JPS52120293A (en) 1977-10-08
SE426787B (sv) 1983-02-14

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Legal Events

Date Code Title Description
ST Notification of lapse