SE381408B - REDUCTION CATALYTER FOR NITROGEN OXIDES REDUCTION - Google Patents

REDUCTION CATALYTER FOR NITROGEN OXIDES REDUCTION

Info

Publication number
SE381408B
SE381408B SE7217173A SE1717372A SE381408B SE 381408 B SE381408 B SE 381408B SE 7217173 A SE7217173 A SE 7217173A SE 1717372 A SE1717372 A SE 1717372A SE 381408 B SE381408 B SE 381408B
Authority
SE
Sweden
Prior art keywords
reduction
catalyter
nitrogen oxides
oxides reduction
nitrogen
Prior art date
Application number
SE7217173A
Other languages
Swedish (sv)
Inventor
J Stenzel
H Harnisch
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
Publication of SE381408B publication Critical patent/SE381408B/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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
SE7217173A 1971-12-30 1972-12-29 REDUCTION CATALYTER FOR NITROGEN OXIDES REDUCTION SE381408B (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
SE381408B true SE381408B (en) 1975-12-08

Family

ID=5829702

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7217173A SE381408B (en) 1971-12-30 1972-12-29 REDUCTION CATALYTER FOR NITROGEN OXIDES REDUCTION

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
ATA1108872A (en) 1976-04-15
BR7209123D0 (en) 1973-09-25
PL85181B1 (en) 1976-04-30
NL177467C (en) 1985-10-01
JPS4879189A (en) 1973-10-24
BE793518A (en) 1973-06-29
CH591282A5 (en) 1977-09-15
FR2166191B1 (en) 1981-10-02
FR2166191A1 (en) 1973-08-10
RO61301A (en) 1976-09-15
DE2165550A1 (en) 1973-07-05
CA1003814A (en) 1977-01-18
AT333705B (en) 1976-12-10
DE2165550B2 (en) 1976-01-15
IT974321B (en) 1974-06-20
CS179405B2 (en) 1977-10-31
NL7217018A (en) 1973-07-03
IL41147A0 (en) 1973-02-28
DD100635A5 (en) 1973-10-05
JPS5632019B2 (en) 1981-07-24
IL41147A (en) 1975-07-28

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