IT988627B - Processo catalitico per la elimina zione di ossidi di azoto da gas di scarico di motori a combustione interna - Google Patents

Processo catalitico per la elimina zione di ossidi di azoto da gas di scarico di motori a combustione interna

Info

Publication number
IT988627B
IT988627B IT2307973A IT2307973A IT988627B IT 988627 B IT988627 B IT 988627B IT 2307973 A IT2307973 A IT 2307973A IT 2307973 A IT2307973 A IT 2307973A IT 988627 B IT988627 B IT 988627B
Authority
IT
Italy
Prior art keywords
elimination
exhaust gas
internal combustion
nitrogen oxides
combustion engines
Prior art date
Application number
IT2307973A
Other languages
English (en)
Italian (it)
Original Assignee
Ici 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 Ici Ltd filed Critical Ici Ltd
Application granted granted Critical
Publication of IT988627B publication Critical patent/IT988627B/it

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)
IT2307973A 1972-04-17 1973-04-16 Processo catalitico per la elimina zione di ossidi di azoto da gas di scarico di motori a combustione interna IT988627B (it)

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
IT988627B true IT988627B (it) 1975-04-30

Family

ID=10097697

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2307973A IT988627B (it) 1972-04-17 1973-04-16 Processo catalitico per la elimina zione di ossidi di azoto da gas di scarico di motori a combustione interna

Country Status (5)

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

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 (enrdf_load_stackoverflow) * 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
FR2181336A5 (enrdf_load_stackoverflow) 1973-11-30
DE2319527A1 (de) 1973-10-31
JPS4947243A (enrdf_load_stackoverflow) 1974-05-07
GB1431377A (en) 1976-04-07

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