SE392221B - PROCEDURE FOR PRODUCING IMPROVED EXHAUST CLEANING CATALYSTS - Google Patents

PROCEDURE FOR PRODUCING IMPROVED EXHAUST CLEANING CATALYSTS

Info

Publication number
SE392221B
SE392221B SE7304160A SE7304160A SE392221B SE 392221 B SE392221 B SE 392221B SE 7304160 A SE7304160 A SE 7304160A SE 7304160 A SE7304160 A SE 7304160A SE 392221 B SE392221 B SE 392221B
Authority
SE
Sweden
Prior art keywords
procedure
exhaust cleaning
improved exhaust
producing improved
cleaning catalysts
Prior art date
Application number
SE7304160A
Other languages
Swedish (sv)
Inventor
E Koberstein
E Lakatos
Original Assignee
Degussa
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 Degussa filed Critical Degussa
Publication of SE392221B publication Critical patent/SE392221B/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
    • 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
    • B01J23/64—Platinum group metals with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/652—Chromium, molybdenum or tungsten
    • B01J23/6522—Chromium
    • 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
    • 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
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • 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)
SE7304160A 1972-03-25 1973-03-23 PROCEDURE FOR PRODUCING IMPROVED EXHAUST CLEANING CATALYSTS SE392221B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2214604A DE2214604C3 (en) 1972-03-25 1972-03-25 Process for making improved exhaust gas cleaning catalysts

Publications (1)

Publication Number Publication Date
SE392221B true SE392221B (en) 1977-03-21

Family

ID=5840129

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7304160A SE392221B (en) 1972-03-25 1973-03-23 PROCEDURE FOR PRODUCING IMPROVED EXHAUST CLEANING CATALYSTS

Country Status (7)

Country Link
JP (1) JPS5547932B2 (en)
CA (1) CA1000934A (en)
DE (1) DE2214604C3 (en)
FR (1) FR2177951B1 (en)
GB (1) GB1420992A (en)
IT (1) IT977923B (en)
SE (1) SE392221B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3966790A (en) * 1973-12-10 1976-06-29 Engelhard Minerals & Chemicals Corporation Compositions and methods for high temperature stable catalysts
US4085193A (en) * 1973-12-12 1978-04-18 Mitsubishi Petrochemical Co. Ltd. Catalytic process for reducing nitrogen oxides to nitrogen
FR2293965A1 (en) * 1974-12-13 1976-07-09 Oxycatalyse Ste Fse PURIFICATION OF EXHAUST GASES FROM EXPLOSION OR INTERNAL COMBUSTION ENGINES
CA1067060A (en) * 1975-08-25 1979-11-27 Mordecai Shelef Equilibrium catalyst
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
JPS5261192A (en) * 1975-11-17 1977-05-20 Ngk Insulators Ltd Ceramic honeycomb catalysts
JPS6115567U (en) * 1984-07-04 1986-01-29 アレック電子株式会社 Three-dimensional electromagnetic current meter
DE3502866A1 (en) * 1984-09-19 1986-03-20 Klaus Prof. Dr.rer.nat. 4430 Steinfurt Mangold Two-stage process and apparatus for purifying combustion gases
JPS61138537A (en) * 1984-12-11 1986-06-26 Nikki Universal Co Ltd Production of hydrogenated desulfurizing catalyst
JPS61291026A (en) * 1985-06-17 1986-12-20 Hitachi Ltd Method for simultaneously removing nitrogen oxide and carbon monoxide
DE3523205A1 (en) * 1985-06-28 1987-01-02 Bayer Ag CARRIER CATALYST, METHOD FOR THE PRODUCTION THEREOF AND THE USE THEREOF FOR THE PRODUCTION OF HYDROXYDIPHENYL
US5198403A (en) * 1989-02-28 1993-03-30 Degussa Ag Process for producing a catalyst for selective reduction of nitrous oxides with ammonia
GB9020568D0 (en) * 1990-09-20 1990-10-31 Rover Group Supported palladium catalysts

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1378393A (en) * 1963-12-03 1964-11-13 Grace W R & Co Catalysts for the treatment of exhaust gases from internal combustion engines and method for their preparation

Also Published As

Publication number Publication date
DE2214604A1 (en) 1973-10-11
FR2177951A1 (en) 1973-11-09
IT977923B (en) 1974-09-20
FR2177951B1 (en) 1978-08-04
GB1420992A (en) 1976-01-14
CA1000934A (en) 1976-12-07
DE2214604B2 (en) 1974-11-07
DE2214604C3 (en) 1975-06-12
JPS497186A (en) 1974-01-22
JPS5547932B2 (en) 1980-12-03

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