IT962926B - CATALYST FOR EXHAUST GAS AND METHOD FOR ITS USE - Google Patents

CATALYST FOR EXHAUST GAS AND METHOD FOR ITS USE

Info

Publication number
IT962926B
IT962926B IT27092/72A IT2709272A IT962926B IT 962926 B IT962926 B IT 962926B IT 27092/72 A IT27092/72 A IT 27092/72A IT 2709272 A IT2709272 A IT 2709272A IT 962926 B IT962926 B IT 962926B
Authority
IT
Italy
Prior art keywords
catalyst
exhaust gas
exhaust
gas
Prior art date
Application number
IT27092/72A
Other languages
Italian (it)
Original Assignee
Grace W R & Co
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 Grace W R & Co filed Critical Grace W R & Co
Application granted granted Critical
Publication of IT962926B publication Critical patent/IT962926B/en

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
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/005—Spinels
    • 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
    • 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
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02—Impregnation, coating or precipitation
    • B01J37/024—Multiple impregnation or coating
    • 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)
IT27092/72A 1971-07-20 1972-07-17 CATALYST FOR EXHAUST GAS AND METHOD FOR ITS USE IT962926B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US16446571A 1971-07-20 1971-07-20

Publications (1)

Publication Number Publication Date
IT962926B true IT962926B (en) 1973-12-31

Family

ID=22594612

Family Applications (1)

Application Number Title Priority Date Filing Date
IT27092/72A IT962926B (en) 1971-07-20 1972-07-17 CATALYST FOR EXHAUST GAS AND METHOD FOR ITS USE

Country Status (5)

Country Link
DE (1) DE2233187A1 (en)
FR (1) FR2146440A1 (en)
GB (1) GB1369745A (en)
IT (1) IT962926B (en)
NL (1) NL7210062A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MX4509E (en) * 1975-08-27 1982-06-02 Engelhard Min & Chem IMPROVED CATALYTIC COMPOSITION FOR SIMULTANEOUS OXIDATION GASCOUS HYDROCARBONS AND CARBON MONOXIDE AND REDUCE NITROGEN OXIDES
DE2721574C3 (en) * 1977-05-13 1981-06-11 Giulini Chemie Gmbh, 6700 Ludwigshafen Process for the production of magnesium spinel
DE2745188C3 (en) * 1977-10-07 1980-05-08 Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt Shaped catalyst, process for its manufacture and use
DE3729126A1 (en) * 1987-09-01 1989-04-06 Mototech Motoren Umweltschutz Diesel soot-particle filter and process for the production thereof
DE3731889A1 (en) * 1987-09-01 1989-06-29 Mototech Motoren Umweltschutz Diesel soot particle filter and process for the production thereof
FR2655878B1 (en) * 1989-12-20 1994-03-25 Gaz De France OXIDATION CATALYSTS AND COMBUSTION METHOD USING SUCH CATALYSTS.
JP4325648B2 (en) * 2005-10-24 2009-09-02 トヨタ自動車株式会社 Catalyst carrier and exhaust gas purification catalyst
CN113117694A (en) * 2021-04-20 2021-07-16 中国科学院生态环境研究中心 Cobalt-aluminum spinel supported Pd-Pt catalyst and preparation method and application thereof

Also Published As

Publication number Publication date
DE2233187A1 (en) 1973-02-08
NL7210062A (en) 1973-01-23
GB1369745A (en) 1974-10-09
FR2146440A1 (en) 1973-03-02

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