IL41147A - Reduction catalyst particularly for the reduction of nitrogen oxides - Google Patents

Reduction catalyst particularly for the reduction of nitrogen oxides

Info

Publication number
IL41147A
IL41147A IL41147A IL4114772A IL41147A IL 41147 A IL41147 A IL 41147A IL 41147 A IL41147 A IL 41147A IL 4114772 A IL4114772 A IL 4114772A IL 41147 A IL41147 A IL 41147A
Authority
IL
Israel
Prior art keywords
reduction
nitrogen oxides
catalyst particularly
reduction catalyst
oxides
Prior art date
Application number
IL41147A
Other languages
English (en)
Other versions
IL41147A0 (en
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/de
Application filed by Hoechst Ag filed Critical Hoechst Ag
Publication of IL41147A0 publication Critical patent/IL41147A0/xx
Publication of IL41147A publication Critical patent/IL41147A/xx

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)
IL41147A 1971-12-30 1972-12-22 Reduction catalyst particularly for the reduction of nitrogen oxides IL41147A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712165550 DE2165550C3 (de) 1971-12-30 Reduktionskatalysator

Publications (2)

Publication Number Publication Date
IL41147A0 IL41147A0 (en) 1973-02-28
IL41147A true IL41147A (en) 1975-07-28

Family

ID=5829702

Family Applications (1)

Application Number Title Priority Date Filing Date
IL41147A IL41147A (en) 1971-12-30 1972-12-22 Reduction catalyst particularly for the reduction of nitrogen oxides

Country Status (15)

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

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CS169764B2 (xx) * 1973-05-09 1976-07-29
JP2547124B2 (ja) * 1991-02-02 1996-10-23 工業技術院長 窒素酸化物の還元除去方法
JP2008168228A (ja) * 2007-01-12 2008-07-24 Okayama Univ 未燃カーボンを用いてディーゼルエンジン排ガス中の窒素酸化物を浄化するための触媒と方法

Also Published As

Publication number Publication date
DE2165550A1 (de) 1973-07-05
CH591282A5 (xx) 1977-09-15
AT333705B (de) 1976-12-10
DD100635A5 (xx) 1973-10-05
FR2166191A1 (en) 1973-08-10
FR2166191B1 (xx) 1981-10-02
JPS5632019B2 (xx) 1981-07-24
CS179405B2 (en) 1977-10-31
NL7217018A (xx) 1973-07-03
IL41147A0 (en) 1973-02-28
DE2165550B2 (de) 1976-01-15
JPS4879189A (xx) 1973-10-24
NL177467C (nl) 1985-10-01
RO61301A (xx) 1976-09-15
SE381408B (sv) 1975-12-08
BR7209123D0 (pt) 1973-09-25
BE793518A (fr) 1973-06-29
ATA1108872A (de) 1976-04-15
CA1003814A (en) 1977-01-18
IT974321B (it) 1974-06-20
PL85181B1 (xx) 1976-04-30

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