IT1054981B - Catalizzatore a duplice azione per gas di scarico - Google Patents

Catalizzatore a duplice azione per gas di scarico

Info

Publication number
IT1054981B
IT1054981B IT19553/76A IT1955376A IT1054981B IT 1054981 B IT1054981 B IT 1054981B IT 19553/76 A IT19553/76 A IT 19553/76A IT 1955376 A IT1955376 A IT 1955376A IT 1054981 B IT1054981 B IT 1054981B
Authority
IT
Italy
Prior art keywords
dual
exhaust gas
action catalyst
catalyst
action
Prior art date
Application number
IT19553/76A
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 IT1054981B publication Critical patent/IT1054981B/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
    • 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
    • B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • 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
    • 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
    • B01J23/894—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 rare earths or actinides
    • 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)
IT19553/76A 1975-01-24 1976-01-23 Catalizzatore a duplice azione per gas di scarico IT1054981B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US54402575A 1975-01-24 1975-01-24

Publications (1)

Publication Number Publication Date
IT1054981B true IT1054981B (it) 1981-11-30

Family

ID=24170475

Family Applications (1)

Application Number Title Priority Date Filing Date
IT19553/76A IT1054981B (it) 1975-01-24 1976-01-23 Catalizzatore a duplice azione per gas di scarico

Country Status (4)

Country Link
JP (1) JPS5187490A (enrdf_load_stackoverflow)
DE (1) DE2602286A1 (enrdf_load_stackoverflow)
FR (1) FR2298367A1 (enrdf_load_stackoverflow)
IT (1) IT1054981B (enrdf_load_stackoverflow)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4171288A (en) * 1977-09-23 1979-10-16 Engelhard Minerals & Chemicals Corporation Catalyst compositions and the method of manufacturing them
US4171287A (en) * 1977-09-23 1979-10-16 Engelhard Minerals & Chemicals Corporation Catalyst compositions and the method of manufacturing them
CA1213874A (en) * 1983-05-12 1986-11-12 Tomohisa Ohata Process for producing honeycomb catalyst for exhaust gas conversion
GB8527549D0 (en) * 1985-11-08 1985-12-11 Shell Int Research Supported metal catalysts
FR2595265B1 (fr) * 1986-03-07 1992-10-09 Pro Catalyse Catalyseur et procede pour le traitement des gaz d'echappement des moteurs a combustion interne
EP0244127A1 (en) * 1986-04-16 1987-11-04 Johnson Matthey, Inc., Method for catalytically controlling exhaust gaz from automobiles
US4904633A (en) * 1986-12-18 1990-02-27 Nippon Shokubai Kagaku Kogyo Co., Ltd. Catalyst for purifying exhaust gas and method for production thereof
US4895824A (en) * 1987-09-08 1990-01-23 W. R. Grace & Co.-Conn. Add-on hydrogen sulfide trap
GB9801321D0 (en) * 1998-01-21 1998-03-18 Dytech Corp Ltd Catalysis
WO2000043121A1 (en) * 1999-01-21 2000-07-27 Imperial Chemical Industries Plc Catalyst carrier carrying nickel ruthenium and lanthanum
JP7543539B2 (ja) * 2020-07-28 2024-09-02 レール・リキード－ソシエテ・アノニム・プール・レテュード・エ・レクスプロワタシオン・デ・プロセデ・ジョルジュ・クロード 誘電体膜の形成方法、新規な前駆体、及び半導体製造におけるそれらの使用

Also Published As

Publication number Publication date
FR2298367A1 (fr) 1976-08-20
DE2602286A1 (de) 1976-07-29
FR2298367B3 (enrdf_load_stackoverflow) 1978-10-13
JPS5187490A (enrdf_load_stackoverflow) 1976-07-31

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