GB1403555A - Catalyst for air-pollution preventive purposes - Google Patents

Catalyst for air-pollution preventive purposes

Info

Publication number
GB1403555A
GB1403555A GB4334772A GB4334772A GB1403555A GB 1403555 A GB1403555 A GB 1403555A GB 4334772 A GB4334772 A GB 4334772A GB 4334772 A GB4334772 A GB 4334772A GB 1403555 A GB1403555 A GB 1403555A
Authority
GB
United Kingdom
Prior art keywords
catalyst
air
oxides
preventive purposes
sept
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
GB4334772A
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co 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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Publication of GB1403555A publication Critical patent/GB1403555A/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
    • B01D53/9445—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC]
    • B01D53/945—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC] 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
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8643—Removing mixtures of carbon monoxide or hydrocarbons and nitrogen oxides
    • B01D53/8646—Simultaneous elimination of the components
    • B01D53/865—Simultaneous elimination of the components characterised by a specific catalyst
    • 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
    • B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/89—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals
    • B01J23/8933—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals also combined with metals, or metal oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/8993—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals also combined with metals, or metal oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with chromium, molybdenum or tungsten
    • 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
    • B01D2255/20753—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
    • B01D2255/20784—Chromium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four
    • 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)
  • Environmental & Geological Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Combustion & Propulsion (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

1403555 Gas separation NISSAN MOTOR CO Ltd 19 Sept 1972 [21 Sept 1971] 43347/72 Heading C1A [Also in Division B1] Exhaust gases are purified by oxidation of hydrocarbons and carbon monoxide or by reduction of nitrogen oxides in the presence of a catalyst comprising a carrier and oxides of Cr, Ni and Pd which contains 0À1-3À5 g.- atoms total Ni+Cr and at least 0À0003 g.- atoms Pd per litre of catalyst. The catalysts may also comprise in the catalytic oxide mixture oxides of Cu, Al, Zr, Bi and/or V.
GB4334772A 1971-09-21 1972-09-19 Catalyst for air-pollution preventive purposes Expired GB1403555A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP46072978A JPS4838883A (en) 1971-09-21 1971-09-21

Publications (1)

Publication Number Publication Date
GB1403555A true GB1403555A (en) 1975-08-28

Family

ID=13504972

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4334772A Expired GB1403555A (en) 1971-09-21 1972-09-19 Catalyst for air-pollution preventive purposes

Country Status (4)

Country Link
JP (1) JPS4838883A (en)
DE (1) DE2246377A1 (en)
FR (1) FR2153345B1 (en)
GB (1) GB1403555A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2141355A (en) * 1983-06-15 1984-12-19 Teledyne Ind Palladium oxidation catalyst
WO2021058484A1 (en) * 2019-09-27 2021-04-01 Johnson Matthey Catalysts (Germany) Gmbh MULTI-FUNCTION CATALYST ARTICLE FOR TREATING BOTH CO AND NOx IN STATIONARY EMISSION SOURCE EXHAUST GAS

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5018379A (en) * 1973-06-22 1975-02-26
JPS5545257B2 (en) * 1973-07-06 1980-11-17

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2141355A (en) * 1983-06-15 1984-12-19 Teledyne Ind Palladium oxidation catalyst
WO2021058484A1 (en) * 2019-09-27 2021-04-01 Johnson Matthey Catalysts (Germany) Gmbh MULTI-FUNCTION CATALYST ARTICLE FOR TREATING BOTH CO AND NOx IN STATIONARY EMISSION SOURCE EXHAUST GAS
CN114401790A (en) * 2019-09-27 2022-04-26 庄信万丰催化剂(德国)有限公司 Multifunctional catalyst article for treating CO and NOx in stationary emissions source exhaust
US11819828B2 (en) 2019-09-27 2023-11-21 Johnson Matthey Public Limited Company Multi-function catalyst article for treating both CO and NOx in stationary emission source exhaust gas

Also Published As

Publication number Publication date
DE2246377A1 (en) 1973-06-28
FR2153345A1 (en) 1973-05-04
FR2153345B1 (en) 1976-01-23
JPS4838883A (en) 1973-06-07

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Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee