FR2406473A1 - Procede pour ameliorer la selectivite d'un catalyseur destine au traitement des gaz d'echappement des moteurs a combustion interne - Google Patents

Procede pour ameliorer la selectivite d'un catalyseur destine au traitement des gaz d'echappement des moteurs a combustion interne

Info

Publication number
FR2406473A1
FR2406473A1 FR7829221A FR7829221A FR2406473A1 FR 2406473 A1 FR2406473 A1 FR 2406473A1 FR 7829221 A FR7829221 A FR 7829221A FR 7829221 A FR7829221 A FR 7829221A FR 2406473 A1 FR2406473 A1 FR 2406473A1
Authority
FR
France
Prior art keywords
catalyst
selectivity
improving
exhaust gases
treatment
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
FR7829221A
Other languages
English (en)
French (fr)
Other versions
FR2406473B1 (OSRAM
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.)
Ford France SA
Original Assignee
Ford France 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
Application filed by Ford France SA filed Critical Ford France SA
Publication of FR2406473A1 publication Critical patent/FR2406473A1/fr
Application granted granted Critical
Publication of FR2406473B1 publication Critical patent/FR2406473B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/56—Platinum group metals
    • B01J23/64—Platinum group metals with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/652—Chromium, molybdenum or tungsten
    • B01J23/6525—Molybdenum
    • 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
    • B01D53/9404—Removing only nitrogen compounds
    • B01D53/9409—Nitrogen oxides
    • B01D53/9413—Processes characterised by a specific catalyst
    • B01D53/9418—Processes characterised by a specific catalyst for removing nitrogen oxides by selective catalytic reduction [SCR] using a reducing agent in a lean exhaust gas
    • 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
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/56—Platinum group metals
    • B01J23/64—Platinum group metals with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/652—Chromium, molybdenum or tungsten
    • B01J23/6522—Chromium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants
    • B01D2251/206—Ammonium compounds
    • B01D2251/2062—Ammonia
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/10—Noble metals or compounds thereof
    • B01D2255/102—Platinum group metals
    • B01D2255/1021—Platinum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/10—Noble metals or compounds thereof
    • B01D2255/102—Platinum group metals
    • B01D2255/1023—Palladium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20769—Molybdenum
    • 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)
FR7829221A 1977-10-19 1978-10-13 Procede pour ameliorer la selectivite d'un catalyseur destine au traitement des gaz d'echappement des moteurs a combustion interne Granted FR2406473A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US84339677A 1977-10-19 1977-10-19
US05/924,415 US4192779A (en) 1977-10-19 1978-07-13 Catalyst system and method for increasing the selectivity of a catalyst

Publications (2)

Publication Number Publication Date
FR2406473A1 true FR2406473A1 (fr) 1979-05-18
FR2406473B1 FR2406473B1 (OSRAM) 1982-06-18

Family

ID=27126411

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7829221A Granted FR2406473A1 (fr) 1977-10-19 1978-10-13 Procede pour ameliorer la selectivite d'un catalyseur destine au traitement des gaz d'echappement des moteurs a combustion interne

Country Status (5)

Country Link
US (1) US4192779A (OSRAM)
CA (1) CA1102300A (OSRAM)
DE (1) DE2845595A1 (OSRAM)
FR (1) FR2406473A1 (OSRAM)
GB (1) GB2006038B (OSRAM)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4374103A (en) * 1981-07-20 1983-02-15 Ford Motor Company Method of using a low cost catalyst system
DE3830317A1 (de) * 1988-09-07 1990-03-15 Degussa Katalysator fuer die beseitigung von in abgasen ueberwiegend mit alkohol betriebener verbrennungskraftmaschinen enthaltenen schadstoffen, verfahren zur herstellung und verwendung
US5409681A (en) * 1991-11-27 1995-04-25 Babcock-Hitachi Kabushiki Kaisha Catalyst for purifying exhaust gas
CN1226184A (zh) * 1996-05-28 1999-08-18 安格罗美国研究实验室(私营)有限公司 氧化催化剂
JP2001347168A (ja) * 2000-06-06 2001-12-18 Toyota Motor Corp 排気ガス浄化用触媒
US9694351B1 (en) * 2014-02-26 2017-07-04 Stc.Unm Highly dispersed and durable heterogeneous catalysts

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2032739A1 (de) * 1969-07-08 1971-04-22 BP Chemicals Ltd , London Verfahren zur Herstellung von Dehydnerungskatalysatoren und Verwendung der Katalysatoren zur Dehydrierung
US3830847A (en) * 1966-11-04 1974-08-20 Grace W R & Co Selective oxidation of olefins
US3839486A (en) * 1971-03-25 1974-10-01 Petro Tex Chem Corp Process for the isomerization of olefins
FR2322261A1 (fr) * 1975-08-30 1977-03-25 Kali Chemie Ag Procede d'epuration de gaz d'echappement d'automobiles et catalyseurs pour l'execution de ce procede

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3619127A (en) * 1966-09-22 1971-11-09 Union Oil Co Method of purifying automotive exhaust gases
GB1390182A (en) * 1971-03-16 1975-04-09 Johnson Matthey Co Ltd Catalysis
CA1009640A (en) * 1972-08-19 1977-05-03 Nippon Shokubai Kagaku Kogyo Co. Method for the production of exhaust or waste gases purifying catalysts

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3830847A (en) * 1966-11-04 1974-08-20 Grace W R & Co Selective oxidation of olefins
DE2032739A1 (de) * 1969-07-08 1971-04-22 BP Chemicals Ltd , London Verfahren zur Herstellung von Dehydnerungskatalysatoren und Verwendung der Katalysatoren zur Dehydrierung
US3839486A (en) * 1971-03-25 1974-10-01 Petro Tex Chem Corp Process for the isomerization of olefins
FR2322261A1 (fr) * 1975-08-30 1977-03-25 Kali Chemie Ag Procede d'epuration de gaz d'echappement d'automobiles et catalyseurs pour l'execution de ce procede

Also Published As

Publication number Publication date
DE2845595C2 (OSRAM) 1989-06-22
GB2006038B (en) 1982-03-17
FR2406473B1 (OSRAM) 1982-06-18
GB2006038A (en) 1979-05-02
US4192779A (en) 1980-03-11
DE2845595A1 (de) 1979-04-26
CA1102300A (en) 1981-06-02

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ST Notification of lapse