FR2168503B1 - - Google Patents

Info

Publication number
FR2168503B1
FR2168503B1 FR7301769A FR7301769A FR2168503B1 FR 2168503 B1 FR2168503 B1 FR 2168503B1 FR 7301769 A FR7301769 A FR 7301769A FR 7301769 A FR7301769 A FR 7301769A FR 2168503 B1 FR2168503 B1 FR 2168503B1
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
FR7301769A
Other languages
French (fr)
Other versions
FR2168503A1 (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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co Ltd
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
Application filed by Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Publication of FR2168503A1 publication Critical patent/FR2168503A1/fr
Application granted granted Critical
Publication of FR2168503B1 publication Critical patent/FR2168503B1/fr
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
    • B01J23/54—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
    • B01J23/56—Platinum group metals
    • B01J23/64—Platinum group metals with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/652—Chromium, molybdenum or tungsten
    • B01J23/6522—Chromium
    • 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
    • B01J37/08—Heat treatment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four
    • 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
FR7301769A 1972-01-18 1973-01-18 Expired FR2168503B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47007366A JPS4876794A (en) 1972-01-18 1972-01-18

Publications (2)

Publication Number Publication Date
FR2168503A1 FR2168503A1 (en) 1973-08-31
FR2168503B1 true FR2168503B1 (en) 1978-03-03

Family

ID=11663955

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7301769A Expired FR2168503B1 (en) 1972-01-18 1973-01-18

Country Status (4)

Country Link
JP (1) JPS4876794A (en)
DE (1) DE2302443A1 (en)
FR (1) FR2168503B1 (en)
GB (1) GB1424382A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2070957B (en) * 1980-03-10 1984-08-30 Bridgestone Tire Co Ltd Catalytic device for purification of exhaust gas
GB8623482D0 (en) * 1986-09-30 1986-11-05 Johnson Matthey Plc Catalytic generation of hydrogen
DE3770920D1 (en) * 1986-12-03 1991-07-25 Catalyst And Chemicals Inc Far FIRE-RESISTANT CATALYST AND METHOD FOR THE PRODUCTION THEREOF.
JP2768946B2 (en) * 1988-04-13 1998-06-25 東洋シーシーアイ株式会社 Heat-resistant noble metal catalyst and method for producing the same
EP0362960A3 (en) * 1988-10-05 1990-06-27 Sakai Chemical Industry Co., Ltd., Use of a catalyst composition for denitrization and denitrizing catalysts
US8063261B2 (en) 2002-01-14 2011-11-22 Sud-Chemie Inc. Multi-layered dehydrogenation catalyst system and process of use
US8680357B1 (en) 2002-01-14 2014-03-25 Clariant Corporation Dehydrogenation catalyst
US20050075243A1 (en) * 2003-10-07 2005-04-07 Sud-Chemie, Inc. Catalyst for dehydrogenation of hydrocarbons
FI121531B (en) 2007-07-23 2010-12-31 Ecocat Oy Catalytic for the deposition of harmful hydrocarbons in exhaust gases and process gases and process for the production and use of such a catalyst
US8101541B2 (en) 2008-07-14 2012-01-24 Sud-Chemie Inc. Catalyst for dehydrogenation of hydrocarbons

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1283439A (en) * 1960-02-29 1962-02-02 Universal Oil Prod Co Process for the removal of combustible constituents contained in a gas, in particular an exhaust gas

Also Published As

Publication number Publication date
JPS4876794A (en) 1973-10-16
FR2168503A1 (en) 1973-08-31
DE2302443A1 (en) 1973-08-09
GB1424382A (en) 1976-02-11

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Legal Events

Date Code Title Description
ST Notification of lapse