FR2177330A5 - Reducing nitrogen oxides in exhaust gases - on platinum palladium or osmium, and ruthenium catalysts, without forming ammonia - Google Patents

Reducing nitrogen oxides in exhaust gases - on platinum palladium or osmium, and ruthenium catalysts, without forming ammonia

Info

Publication number
FR2177330A5
FR2177330A5 FR7309666A FR7309666A FR2177330A5 FR 2177330 A5 FR2177330 A5 FR 2177330A5 FR 7309666 A FR7309666 A FR 7309666A FR 7309666 A FR7309666 A FR 7309666A FR 2177330 A5 FR2177330 A5 FR 2177330A5
Authority
FR
France
Prior art keywords
exhaust gases
osmium
nitrogen oxides
reducing nitrogen
ruthenium catalysts
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
FR7309666A
Other languages
English (en)
French (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.)
Gulf Research and Development Co
Original Assignee
Gulf Research and Development 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
Application filed by Gulf Research and Development Co filed Critical Gulf Research and Development Co
Application granted granted Critical
Publication of FR2177330A5 publication Critical patent/FR2177330A5/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
    • 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)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
FR7309666A 1972-03-20 1973-03-19 Reducing nitrogen oxides in exhaust gases - on platinum palladium or osmium, and ruthenium catalysts, without forming ammonia Expired FR2177330A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US23616572A 1972-03-20 1972-03-20

Publications (1)

Publication Number Publication Date
FR2177330A5 true FR2177330A5 (en) 1973-11-02

Family

ID=22888396

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7309666A Expired FR2177330A5 (en) 1972-03-20 1973-03-19 Reducing nitrogen oxides in exhaust gases - on platinum palladium or osmium, and ruthenium catalysts, without forming ammonia

Country Status (5)

Country Link
JP (1) JPS495860A (it)
CA (1) CA1007034A (it)
DE (1) DE2313700A1 (it)
FR (1) FR2177330A5 (it)
IT (1) IT979898B (it)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1295813C (en) * 1988-12-14 1992-02-18 Karl T. Chuang Reduction of nitrogen oxides

Also Published As

Publication number Publication date
IT979898B (it) 1974-09-30
DE2313700A1 (de) 1973-10-04
CA1007034A (en) 1977-03-22
JPS495860A (it) 1974-01-19

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Legal Events

Date Code Title Description
ST Notification of lapse