CA1003814A - Reduction catalyst - Google Patents

Reduction catalyst

Info

Publication number
CA1003814A
CA1003814A CA159,903A CA159903A CA1003814A CA 1003814 A CA1003814 A CA 1003814A CA 159903 A CA159903 A CA 159903A CA 1003814 A CA1003814 A CA 1003814A
Authority
CA
Canada
Prior art keywords
reduction catalyst
catalyst
reduction
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
CA159,903A
Other versions
CA159903S (en
Inventor
Heinz Harnisch
Jurgen Stenzel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hoechst AG
Original Assignee
Hoechst AG
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
Priority claimed from DE19712165550 external-priority patent/DE2165550C3/en
Application filed by Hoechst AG filed Critical Hoechst AG
Application granted granted Critical
Publication of CA1003814A publication Critical patent/CA1003814A/en
Expired legal-status Critical Current

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
    • 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
    • B01D53/9404—Removing only nitrogen compounds
    • B01D53/9409—Nitrogen oxides
    • B01D53/9413—Processes 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
    • B01J23/84—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 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/889—Manganese, technetium or rhenium
    • B01J23/8892—Manganese
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/2073—Manganese
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20753—Nickel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20761—Copper
    • 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
CA159,903A 1971-12-30 1972-12-27 Reduction catalyst Expired CA1003814A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712165550 DE2165550C3 (en) 1971-12-30 Reduction catalyst

Publications (1)

Publication Number Publication Date
CA1003814A true CA1003814A (en) 1977-01-18

Family

ID=5829702

Family Applications (1)

Application Number Title Priority Date Filing Date
CA159,903A Expired CA1003814A (en) 1971-12-30 1972-12-27 Reduction catalyst

Country Status (15)

Country Link
JP (1) JPS5632019B2 (en)
AT (1) AT333705B (en)
BE (1) BE793518A (en)
BR (1) BR7209123D0 (en)
CA (1) CA1003814A (en)
CH (1) CH591282A5 (en)
CS (1) CS179405B2 (en)
DD (1) DD100635A5 (en)
FR (1) FR2166191A1 (en)
IL (1) IL41147A (en)
IT (1) IT974321B (en)
NL (1) NL177467C (en)
PL (1) PL85181B1 (en)
RO (1) RO61301A (en)
SE (1) SE381408B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CS169764B2 (en) * 1973-05-09 1976-07-29
JP2547124B2 (en) * 1991-02-02 1996-10-23 工業技術院長 Method for reducing and removing nitrogen oxides
JP2008168228A (en) * 2007-01-12 2008-07-24 Okayama Univ Catalyst for purifying nitrogen oxide in exhaust gas of diesel engine using unburnt carbon and nitrogen oxide purifying method

Also Published As

Publication number Publication date
NL7217018A (en) 1973-07-03
CH591282A5 (en) 1977-09-15
IT974321B (en) 1974-06-20
FR2166191A1 (en) 1973-08-10
DE2165550B2 (en) 1976-01-15
BR7209123D0 (en) 1973-09-25
JPS4879189A (en) 1973-10-24
IL41147A (en) 1975-07-28
NL177467C (en) 1985-10-01
IL41147A0 (en) 1973-02-28
AT333705B (en) 1976-12-10
RO61301A (en) 1976-09-15
JPS5632019B2 (en) 1981-07-24
SE381408B (en) 1975-12-08
DE2165550A1 (en) 1973-07-05
FR2166191B1 (en) 1981-10-02
CS179405B2 (en) 1977-10-31
PL85181B1 (en) 1976-04-30
DD100635A5 (en) 1973-10-05
BE793518A (en) 1973-06-29
ATA1108872A (en) 1976-04-15

Similar Documents

Publication Publication Date Title
CA1002731A (en) Platinum-rhodium-base metal catalyst
CA1006149A (en) Hydrodesulphurization catalyst
CA961547A (en) Converter
CA998990A (en) Ammonia-synthesis catalyst
CA866191A (en) Catalysts
CA947095A (en) Catalytic converter
CA966823A (en) Catalyst regeneration
CA990710A (en) Oxidation catalysts
CA1003814A (en) Reduction catalyst
AU461981B2 (en) Catalyst
CA990857A (en) Converter
CA981243A (en) Catalysts
CA980326A (en) Sodalite-supported catalyst
CA873326A (en) Catalysts
CA1004659A (en) Catalysts
CA976947A (en) Catalyst composition
CA866772A (en) Catalyst
CA871156A (en) Catalysts
CA883806A (en) Oxyhalogenation catalysts
CA878478A (en) Silica-alumina-clay catalysts
CA874433A (en) Catalysts
CA887634A (en) Catalysts
CA864540A (en) Catalyst preparation
CA882683A (en) Catalyst preparation
CA880293A (en) Catalyst preparation