SE446506B - Katalysator for samtidig oxidation av gasformiga kolveten och kolmonoxid och reduktion av kveveoxider och anvendning av denna - Google Patents

Katalysator for samtidig oxidation av gasformiga kolveten och kolmonoxid och reduktion av kveveoxider och anvendning av denna

Info

Publication number
SE446506B
SE446506B SE7609423A SE7609423A SE446506B SE 446506 B SE446506 B SE 446506B SE 7609423 A SE7609423 A SE 7609423A SE 7609423 A SE7609423 A SE 7609423A SE 446506 B SE446506 B SE 446506B
Authority
SE
Sweden
Prior art keywords
catalyst
reduction
carbon monoxide
nitrogen oxides
simultaneous oxidation
Prior art date
Application number
SE7609423A
Other languages
English (en)
Other versions
SE7609423L (sv
SE446506C (sv
Inventor
C E Thompson
J J Mooney
C D Keith
W A Mannion
Original Assignee
Engelhard Corp
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 Engelhard Corp filed Critical Engelhard Corp
Publication of SE7609423L publication Critical patent/SE7609423L/sv
Publication of SE446506B publication Critical patent/SE446506B/sv
Publication of SE446506C publication Critical patent/SE446506C/sv

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
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/56—Platinum group 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
    • 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
    • B01J37/0238—Impregnation, coating or precipitation via the gaseous phase-sublimation
    • 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)
SE7609423A 1975-08-27 1976-08-25 Katalysator for samtidig oxidation av gasformiga kolveten och kolmonoxid och reduktion av kveveoxider och anvendning av denna SE446506C (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US60808475A 1975-08-27 1975-08-27

Publications (3)

Publication Number Publication Date
SE7609423L SE7609423L (sv) 1977-02-28
SE446506B true SE446506B (sv) 1986-09-22
SE446506C SE446506C (sv) 1988-04-18

Family

ID=24434964

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7609423A SE446506C (sv) 1975-08-27 1976-08-25 Katalysator for samtidig oxidation av gasformiga kolveten och kolmonoxid och reduktion av kveveoxider och anvendning av denna

Country Status (16)

Country Link
US (1) US4157316A (sv)
JP (1) JPS5227088A (sv)
AR (1) AR220510A1 (sv)
AU (1) AU505606B2 (sv)
BE (1) BE845625A (sv)
BR (1) BR7605638A (sv)
CA (1) CA1083124A (sv)
DD (1) DD127678A5 (sv)
DE (1) DE2637198A1 (sv)
ES (3) ES450974A1 (sv)
FR (1) FR2321940A1 (sv)
GB (1) GB1561683A (sv)
IT (1) IT1068218B (sv)
MX (1) MX4509E (sv)
PL (1) PL107472B1 (sv)
SE (1) SE446506C (sv)

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US4675308A (en) * 1984-06-14 1987-06-23 Engelhard Corporation Three-way catalyst for lean operating engines
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Also Published As

Publication number Publication date
DE2637198C2 (sv) 1989-08-10
SE7609423L (sv) 1977-02-28
FR2321940A1 (fr) 1977-03-25
DE2637198A1 (de) 1977-03-03
IT1068218B (it) 1985-03-21
JPS5227088A (en) 1977-03-01
DD127678A5 (sv) 1977-10-05
BE845625A (fr) 1977-02-28
AU505606B2 (en) 1979-11-29
GB1561683A (en) 1980-02-27
US4157316A (en) 1979-06-05
ES462042A1 (es) 1978-06-01
AR220510A1 (es) 1980-11-14
MX4509E (es) 1982-06-02
AU1713376A (en) 1978-03-02
FR2321940B1 (sv) 1983-01-28
SE446506C (sv) 1988-04-18
PL107472B1 (pl) 1980-02-29
CA1083124A (en) 1980-08-05
BR7605638A (pt) 1977-08-09
ES462043A1 (es) 1978-06-01
ES450974A1 (es) 1978-01-16

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