FR2127001A1 - Ic engine exhaust gas purification - removing nitrogen oxides using a metal catalyst - Google Patents

Ic engine exhaust gas purification - removing nitrogen oxides using a metal catalyst

Info

Publication number
FR2127001A1
FR2127001A1 FR7200463A FR7200463A FR2127001A1 FR 2127001 A1 FR2127001 A1 FR 2127001A1 FR 7200463 A FR7200463 A FR 7200463A FR 7200463 A FR7200463 A FR 7200463A FR 2127001 A1 FR2127001 A1 FR 2127001A1
Authority
FR
France
Prior art keywords
exhaust gas
gas purification
metal catalyst
nitrogen oxides
engine exhaust
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.)
Granted
Application number
FR7200463A
Other languages
French (fr)
Other versions
FR2127001B1 (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.)
Fujikura Ltd
Original Assignee
Fujikura 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
Priority claimed from JP46000358A external-priority patent/JPS5127628B1/ja
Priority claimed from JP46077771A external-priority patent/JPS4841990A/ja
Application filed by Fujikura Ltd filed Critical Fujikura Ltd
Publication of FR2127001A1 publication Critical patent/FR2127001A1/en
Application granted granted Critical
Publication of FR2127001B1 publication Critical patent/FR2127001B1/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
    • B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • 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)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Materials Engineering (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)

Abstract

The catalyst is prepd. by heating a mixture of metal providing cpds. contg. Ni and/or Cu, and a metal halide to provide halogen, with graphite in a non-oxidising atmosphere so as to ppte. the metal on the graphite carrier. The catalyst is very resistant to poisoning by lead.
FR7200463A 1971-01-09 1972-01-07 Ic engine exhaust gas purification - removing nitrogen oxides using a metal catalyst Granted FR2127001A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP46000358A JPS5127628B1 (en) 1971-01-09 1971-01-09
JP46077771A JPS4841990A (en) 1971-10-04 1971-10-04

Publications (2)

Publication Number Publication Date
FR2127001A1 true FR2127001A1 (en) 1972-10-13
FR2127001B1 FR2127001B1 (en) 1974-06-21

Family

ID=26333327

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7200463A Granted FR2127001A1 (en) 1971-01-09 1972-01-07 Ic engine exhaust gas purification - removing nitrogen oxides using a metal catalyst

Country Status (3)

Country Link
DE (1) DE2200759A1 (en)
FR (1) FR2127001A1 (en)
IT (1) IT946394B (en)

Also Published As

Publication number Publication date
IT946394B (en) 1973-05-21
DE2200759A1 (en) 1973-10-25
FR2127001B1 (en) 1974-06-21
AU3750771A (en) 1973-07-05

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Legal Events

Date Code Title Description
ST Notification of lapse