FR2188679A5 - - Google Patents

Info

Publication number
FR2188679A5
FR2188679A5 FR7321275A FR7321275A FR2188679A5 FR 2188679 A5 FR2188679 A5 FR 2188679A5 FR 7321275 A FR7321275 A FR 7321275A FR 7321275 A FR7321275 A FR 7321275A FR 2188679 A5 FR2188679 A5 FR 2188679A5
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
FR7321275A
Other languages
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.)
GCP Products UK Ltd
Original Assignee
WR Grace 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 WR Grace Ltd filed Critical WR Grace Ltd
Application granted granted Critical
Publication of FR2188679A5 publication Critical patent/FR2188679A5/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
    • 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)
  • 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)
FR7321275A 1972-06-14 1973-06-12 Expired FR2188679A5 (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US26274672A 1972-06-14 1972-06-14

Publications (1)

Publication Number Publication Date
FR2188679A5 true FR2188679A5 (xx) 1974-01-18

Family

ID=22998850

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7321275A Expired FR2188679A5 (xx) 1972-06-14 1973-06-12

Country Status (5)

Country Link
JP (1) JPS4952171A (xx)
DE (1) DE2329611A1 (xx)
FR (1) FR2188679A5 (xx)
GB (1) GB1383896A (xx)
IT (1) IT985412B (xx)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3023943C2 (de) * 1979-06-27 1982-12-02 UOP Inc., 60016 Des Plaines, Ill. Verfahren zur Umwandlung von Kohlenmonoxid, Kohlenwasserstoffen und Stickstoffoxiden im heißen Abgas eines Verbrennungsmotors

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE756151A (fr) * 1969-09-16 1971-02-15 Johnson Matthey & Cy Ltd Perfectionnements relatifs a la catalyse
GB1431377A (en) * 1972-04-17 1976-04-07 Ici Ltd Catalytic process
JPS4839362A (xx) * 1971-09-25 1973-06-09
GB1417544A (en) * 1971-11-22 1975-12-10 Johnson Matthey Co Ltd Catalysts containing platinum and rhodium
US3801697A (en) * 1972-03-02 1974-04-02 Gulf Research Development Co Process for reducing the content of nitrogen oxides in the exhaust gases from internal combustion engines

Also Published As

Publication number Publication date
GB1383896A (en) 1974-02-12
JPS4952171A (xx) 1974-05-21
DE2329611A1 (de) 1974-01-03
IT985412B (it) 1974-11-30

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Legal Events

Date Code Title Description
ST Notification of lapse