IT953675B - Procedimento per la decomposizio ne degli ossidi di azoto e cata lizzatori utilizzati - Google Patents

Procedimento per la decomposizio ne degli ossidi di azoto e cata lizzatori utilizzati

Info

Publication number
IT953675B
IT953675B IT23329/72A IT2332972A IT953675B IT 953675 B IT953675 B IT 953675B IT 23329/72 A IT23329/72 A IT 23329/72A IT 2332972 A IT2332972 A IT 2332972A IT 953675 B IT953675 B IT 953675B
Authority
IT
Italy
Prior art keywords
lyzers
cata
decomposition
procedure
nitrogen oxides
Prior art date
Application number
IT23329/72A
Other languages
English (en)
Italian (it)
Inventor
P Courty
G Berregi
A Sugier
B Raynal
Original Assignee
Prod Pour Catalyse Soc Franc D
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 Prod Pour Catalyse Soc Franc D filed Critical Prod Pour Catalyse Soc Franc D
Application granted granted Critical
Publication of IT953675B publication Critical patent/IT953675B/it

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/92Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9445Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC]
    • B01D53/945Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC] characterised by a specific catalyst
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J21/00Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/005Spinels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/70Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/76Catalysts 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
    • B01J23/84Catalysts 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
    • B01J23/85Chromium, molybdenum or tungsten
    • B01J23/86Chromium
    • B01J23/866Nickel and chromium
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biomedical Technology (AREA)
  • Combustion & Propulsion (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
IT23329/72A 1971-04-19 1972-04-19 Procedimento per la decomposizio ne degli ossidi di azoto e cata lizzatori utilizzati IT953675B (it)

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 (xx) 1971-04-19 1971-12-02

Publications (1)

Publication Number Publication Date
IT953675B true IT953675B (it) 1973-08-10

Family

ID=26216344

Family Applications (1)

Application Number Title Priority Date Filing Date
IT23329/72A IT953675B (it) 1971-04-19 1972-04-19 Procedimento per la decomposizio ne degli ossidi di azoto e cata lizzatori utilizzati

Country Status (8)

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

Families Citing this family (3)

* 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
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

Also Published As

Publication number Publication date
BE781951A (fr) 1972-10-12
CA992057A (fr) 1976-06-29
DE2218665B2 (de) 1980-08-07
NL7205239A (xx) 1972-10-23
JPS5627293B1 (xx) 1981-06-24
DE2218665A1 (de) 1972-11-09
FR2163830A6 (xx) 1973-07-27
DE2218665C3 (de) 1981-12-03
GB1373280A (en) 1974-11-06

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