CA992057A - Procede pour la decomposition des oxydes d'azote et catalyseurs utilises - Google Patents

Procede pour la decomposition des oxydes d'azote et catalyseurs utilises

Info

Publication number
CA992057A
CA992057A CA139,972A CA139972A CA992057A CA 992057 A CA992057 A CA 992057A CA 139972 A CA139972 A CA 139972A CA 992057 A CA992057 A CA 992057A
Authority
CA
Canada
Prior art keywords
nitrous oxide
oxide breakdown
breakdown process
catalyst utilised
utilised
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
CA139,972A
Other languages
English (en)
French (fr)
Other versions
CA139972S (en
Inventor
Andre Sugier
Philippe Courty
Georges Berrebi
Bernard Raynal
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.)
Pro Catalyse SA
Original Assignee
Pro Catalyse SA
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 FR7113858A external-priority patent/FR2134762A5/fr
Application filed by Pro Catalyse SA filed Critical Pro Catalyse SA
Application granted granted Critical
Publication of CA992057A publication Critical patent/CA992057A/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
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/005—Spinels
    • 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
    • B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/85—Chromium, molybdenum or tungsten
    • B01J23/86—Chromium
    • B01J23/866—Nickel and chromium
    • 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)
CA139,972A 1971-04-19 1972-04-18 Procede pour la decomposition des oxydes d'azote et catalyseurs utilises Expired CA992057A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7113858A FR2134762A5 (en) 1971-04-19 1971-04-19 Decomposing oxides of nitrogen
FR7143394A FR2163830A6 (enExample) 1971-04-19 1971-12-02

Publications (1)

Publication Number Publication Date
CA992057A true CA992057A (fr) 1976-06-29

Family

ID=26216344

Family Applications (1)

Application Number Title Priority Date Filing Date
CA139,972A Expired CA992057A (fr) 1971-04-19 1972-04-18 Procede pour la decomposition des oxydes d'azote et catalyseurs utilises

Country Status (8)

Country Link
JP (1) JPS5627293B1 (enExample)
BE (1) BE781951A (enExample)
CA (1) CA992057A (enExample)
DE (1) DE2218665C3 (enExample)
FR (1) FR2163830A6 (enExample)
GB (1) GB1373280A (enExample)
IT (1) IT953675B (enExample)
NL (1) NL7205239A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4981659A (en) * 1988-12-14 1991-01-01 Atomic Energy Of Canada Limited Reduction of nitrogen oxides

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1304164A1 (en) * 2001-10-15 2003-04-23 Haldor Topsoe A/S Process for the production of mixed metal oxide containing catalysts
CN111659187B (zh) * 2020-06-01 2022-03-01 南昌航空大学 一种污水处理用压电泡沫陶瓷过滤器的制备方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1767064A1 (de) * 1968-03-27 1970-09-17 Basf Ag Katalysator fuer die Herstellung von Wasserstoff aus kohlenmonoxidhaltigen Gasen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4981659A (en) * 1988-12-14 1991-01-01 Atomic Energy Of Canada Limited Reduction of nitrogen oxides

Also Published As

Publication number Publication date
GB1373280A (en) 1974-11-06
DE2218665C3 (de) 1981-12-03
DE2218665B2 (de) 1980-08-07
FR2163830A6 (enExample) 1973-07-27
DE2218665A1 (de) 1972-11-09
JPS5627293B1 (enExample) 1981-06-24
NL7205239A (enExample) 1972-10-23
BE781951A (fr) 1972-10-12
IT953675B (it) 1973-08-10

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