CA997533A - Process and apparatus for removing nitrogen oxides from internal combustion engine exhaust gas during start-up and running phases - Google Patents

Process and apparatus for removing nitrogen oxides from internal combustion engine exhaust gas during start-up and running phases

Info

Publication number
CA997533A
CA997533A CA125,054A CA125054A CA997533A CA 997533 A CA997533 A CA 997533A CA 125054 A CA125054 A CA 125054A CA 997533 A CA997533 A CA 997533A
Authority
CA
Canada
Prior art keywords
exhaust gas
combustion engine
internal combustion
nitrogen oxides
engine exhaust
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
CA125,054A
Other languages
English (en)
Other versions
CA125054S (en
Inventor
John S. Campbell
Phineas Davies
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
Priority claimed from GB4882571A external-priority patent/GB1366103A/en
Application granted granted Critical
Publication of CA997533A publication Critical patent/CA997533A/en
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
    • B01D53/9459—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
    • B01D2251/00—Reactants
    • B01D2251/10—Oxidants
    • B01D2251/102—Oxygen
    • 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
    • B01D2255/10—Noble metals or compounds thereof
    • B01D2255/102—Platinum group metals
    • B01D2255/1026—Ruthenium
    • 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
    • B01D2255/20746—Cobalt
    • 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
    • B01D2255/20753—Nickel
    • 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
    • B01D2255/20761—Copper

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
CA125,054A 1970-10-14 1971-10-13 Process and apparatus for removing nitrogen oxides from internal combustion engine exhaust gas during start-up and running phases Expired CA997533A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB4882570 1970-10-14
GB554671 1971-02-26
GB554571*[A GB1360976A (en) 1970-10-14 1971-02-26 Catalytic process for treating exhaust gases
GB4882571A GB1366103A (en) 1970-10-21 1971-10-20 Rearrangement of organosiloxanes using macroreticular sulphonic acid cation exchange resin

Publications (1)

Publication Number Publication Date
CA997533A true CA997533A (en) 1976-09-28

Family

ID=27447456

Family Applications (1)

Application Number Title Priority Date Filing Date
CA125,054A Expired CA997533A (en) 1970-10-14 1971-10-13 Process and apparatus for removing nitrogen oxides from internal combustion engine exhaust gas during start-up and running phases

Country Status (7)

Country Link
US (1) US3849538A (de)
AU (1) AU3454771A (de)
CA (1) CA997533A (de)
CH (1) CH533762A (de)
DE (1) DE2151252A1 (de)
FR (1) FR2110007A5 (de)
GB (1) GB1360976A (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4029738A (en) * 1971-12-02 1977-06-14 Societe Francaise Des Produits Pour Catalyse Decomposing nitrogen oxides with nickel-iron-chromium catalysts
US4039622A (en) * 1974-11-04 1977-08-02 Exxon Research And Engineering Company Catalytic process for NOX reduction under lean conditions
US4053434A (en) * 1976-06-19 1977-10-11 Union Oil Company Of California Exhaust gas conversion catalyst
US5367889A (en) * 1993-08-25 1994-11-29 Lanyon; Joseph G. Exhaust treatment apparatus
JP6815783B2 (ja) * 2016-07-29 2021-01-20 三菱重工業株式会社 脱硝触媒の製造方法
CN111821804A (zh) * 2020-07-06 2020-10-27 中船澄西船舶修造有限公司 一种船舶烟气净化装置

Also Published As

Publication number Publication date
AU3454771A (en) 1973-04-19
US3849538A (en) 1974-11-19
FR2110007A5 (de) 1972-05-26
CH533762A (de) 1973-02-28
GB1360976A (en) 1974-07-24
DE2151252A1 (de) 1972-07-06

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