IT962926B - Catalizzatore per gas di scarico e metodo per il suo impiego - Google Patents

Catalizzatore per gas di scarico e metodo per il suo impiego

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
English (en)
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/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
    • B01D53/9445—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 Catalizzatore per gas di scarico e metodo per il suo impiego IT962926B (it)

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 (it) 1973-12-31

Family

ID=22594612

Family Applications (1)

Application Number Title Priority Date Filing Date
IT27092/72A IT962926B (it) 1971-07-20 1972-07-17 Catalizzatore per gas di scarico e metodo per il suo impiego

Country Status (5)

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

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MX4509E (es) * 1975-08-27 1982-06-02 Engelhard Min & Chem Composicion catalitica mejorada para oxidar en forma simultanea hidrocarburos gascosos y monoxido de carbono y reducir oxidos de nitrogeno
DE2721574C3 (de) * 1977-05-13 1981-06-11 Giulini Chemie Gmbh, 6700 Ludwigshafen Verfahren zur Herstellung von Magnesiumspinell
DE2745188C3 (de) * 1977-10-07 1980-05-08 Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt Geformter Katalysator, Verfahren zu seiner Herstellung und Verwendung
DE3731889A1 (de) * 1987-09-01 1989-06-29 Mototech Motoren Umweltschutz Dieselruss-partikelfilter und verfahren zu seiner herstellung
DE3729126A1 (de) * 1987-09-01 1989-04-06 Mototech Motoren Umweltschutz Dieselruss-partikelfilter und verfahren zu seiner herstellung
FR2655878B1 (fr) * 1989-12-20 1994-03-25 Gaz De France Catalyseurs d'oxydation et procede de combustion utilisant de tels catalyseurs.
JP4325648B2 (ja) * 2005-10-24 2009-09-02 トヨタ自動車株式会社 触媒担体及び排ガス浄化用触媒
CN113117694A (zh) * 2021-04-20 2021-07-16 中国科学院生态环境研究中心 一种钴铝尖晶石负载Pd-Pt催化剂及其制备方法与应用

Also Published As

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

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