DE2319527A1 - Verfahren zur behandlung der abgase von verbrennungsmotoren - Google Patents

Verfahren zur behandlung der abgase von verbrennungsmotoren

Info

Publication number
DE2319527A1
DE2319527A1 DE19732319527 DE2319527A DE2319527A1 DE 2319527 A1 DE2319527 A1 DE 2319527A1 DE 19732319527 DE19732319527 DE 19732319527 DE 2319527 A DE2319527 A DE 2319527A DE 2319527 A1 DE2319527 A1 DE 2319527A1
Authority
DE
Germany
Prior art keywords
air
ratio
catalyst
exhaust gas
gas
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.)
Pending
Application number
DE19732319527
Other languages
German (de)
English (en)
Inventor
Keith Farmery
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries 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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Publication of DE2319527A1 publication Critical patent/DE2319527A1/de
Pending 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
    • B01D53/9459—Removing one or more of nitrogen oxides, carbon monoxide, or hydrocarbons by multiple successive catalytic functions; systems with more than one different function, e.g. zone coated catalysts
    • 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
    • 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
    • B01D53/944—Simultaneously removing carbon monoxide, hydrocarbons or carbon making use of oxidation catalysts
    • 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
    • B01D2255/10—Noble metals or compounds thereof
    • B01D2255/102—Platinum group metals
    • B01D2255/1025—Rhodium

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)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Catalysts (AREA)
DE19732319527 1972-04-17 1973-04-17 Verfahren zur behandlung der abgase von verbrennungsmotoren Pending DE2319527A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1758272A GB1431377A (en) 1972-04-17 1972-04-17 Catalytic process

Publications (1)

Publication Number Publication Date
DE2319527A1 true DE2319527A1 (de) 1973-10-31

Family

ID=10097697

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19732319527 Pending DE2319527A1 (de) 1972-04-17 1973-04-17 Verfahren zur behandlung der abgase von verbrennungsmotoren

Country Status (5)

Country Link
JP (1) JPS4947243A (enExample)
DE (1) DE2319527A1 (enExample)
FR (1) FR2181336A5 (enExample)
GB (1) GB1431377A (enExample)
IT (1) IT988627B (enExample)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1383896A (en) * 1972-06-14 1974-02-12 Grace W R & Co Process of removing noxious components from exhaust gases with the aid of a catalyst
JPS51101780A (enExample) * 1975-03-06 1976-09-08 Nissan Motor
US4071600A (en) 1976-12-06 1978-01-31 General Motors Corporation Process for improved 3-way emission control
JPS5432167A (en) * 1977-08-15 1979-03-09 Osaka Sanso Kougiyou Kk Gas purification

Also Published As

Publication number Publication date
JPS4947243A (enExample) 1974-05-07
FR2181336A5 (enExample) 1973-11-30
IT988627B (it) 1975-04-30
GB1431377A (en) 1976-04-07

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