CS179405B2 - Reducing catalyzer for reduction of nitrogen - Google Patents

Reducing catalyzer for reduction of nitrogen

Info

Publication number
CS179405B2
CS179405B2 CS7200009065A CS906572A CS179405B2 CS 179405 B2 CS179405 B2 CS 179405B2 CS 7200009065 A CS7200009065 A CS 7200009065A CS 906572 A CS906572 A CS 906572A CS 179405 B2 CS179405 B2 CS 179405B2
Authority
CS
Czechoslovakia
Prior art keywords
nitrogen
reduction
reducing catalyzer
catalyzer
reducing
Prior art date
Application number
CS7200009065A
Other languages
Czech (cs)
Inventor
Juergen Stenzel
Hain Harnisch
Original Assignee
Juergen Stenzel
Hain Harnisch
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 Juergen Stenzel, Hain Harnisch filed Critical Juergen Stenzel
Publication of CS179405B2 publication Critical patent/CS179405B2/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)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Combustion & Propulsion (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
CS7200009065A 1971-12-30 1972-12-29 Reducing catalyzer for reduction of nitrogen CS179405B2 (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
CS179405B2 true CS179405B2 (en) 1977-10-31

Family

ID=5829702

Family Applications (1)

Application Number Title Priority Date Filing Date
CS7200009065A CS179405B2 (en) 1971-12-30 1972-12-29 Reducing catalyzer for reduction of nitrogen

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
DE2165550A1 (en) 1973-07-05
CH591282A5 (en) 1977-09-15
AT333705B (en) 1976-12-10
DD100635A5 (en) 1973-10-05
FR2166191A1 (en) 1973-08-10
FR2166191B1 (en) 1981-10-02
JPS5632019B2 (en) 1981-07-24
IL41147A (en) 1975-07-28
NL7217018A (en) 1973-07-03
IL41147A0 (en) 1973-02-28
DE2165550B2 (en) 1976-01-15
JPS4879189A (en) 1973-10-24
NL177467C (en) 1985-10-01
RO61301A (en) 1976-09-15
SE381408B (en) 1975-12-08
BR7209123D0 (en) 1973-09-25
BE793518A (en) 1973-06-29
ATA1108872A (en) 1976-04-15
CA1003814A (en) 1977-01-18
IT974321B (en) 1974-06-20
PL85181B1 (en) 1976-04-30

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