IT1064688B - Catalizzatore per la conversione di ossidi di azoto e metodo per convertire ossidi di azoto presenti in gas di scapico usando detto catalizzatore - Google Patents

Catalizzatore per la conversione di ossidi di azoto e metodo per convertire ossidi di azoto presenti in gas di scapico usando detto catalizzatore

Info

Publication number
IT1064688B
IT1064688B IT2583976A IT2583976A IT1064688B IT 1064688 B IT1064688 B IT 1064688B IT 2583976 A IT2583976 A IT 2583976A IT 2583976 A IT2583976 A IT 2583976A IT 1064688 B IT1064688 B IT 1064688B
Authority
IT
Italy
Prior art keywords
catalyst
nitrogen oxides
conversion
exhaust gas
converting
Prior art date
Application number
IT2583976A
Other languages
English (en)
Italian (it)
Original Assignee
Kobe Steel Ltd
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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Application granted granted Critical
Publication of IT1064688B publication Critical patent/IT1064688B/it

Links

Classifications

    • 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
    • B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/24—Chromium, molybdenum or tungsten
    • 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
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8621—Removing nitrogen compounds
    • B01D53/8625—Nitrogen oxides
    • B01D53/8628—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
    • B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/20—Vanadium, niobium or tantalum
    • 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
    • B01J23/847—Vanadium, niobium or tantalum or polonium
    • B01J23/8474—Niobium
    • 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
    • B01J23/85—Chromium, molybdenum or tungsten

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Catalysts (AREA)
IT2583976A 1975-09-05 1976-07-29 Catalizzatore per la conversione di ossidi di azoto e metodo per convertire ossidi di azoto presenti in gas di scapico usando detto catalizzatore IT1064688B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50108179A JPS6052856B2 (ja) 1975-09-05 1975-09-05 固定燃焼装置よりの排ガス中に含まれる窒素酸化物の除去法

Publications (1)

Publication Number Publication Date
IT1064688B true IT1064688B (it) 1985-02-25

Family

ID=14477985

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2583976A IT1064688B (it) 1975-09-05 1976-07-29 Catalizzatore per la conversione di ossidi di azoto e metodo per convertire ossidi di azoto presenti in gas di scapico usando detto catalizzatore

Country Status (6)

Country Link
JP (1) JPS6052856B2 (enExample)
CA (1) CA1090097A (enExample)
DE (1) DE2634279C2 (enExample)
FR (1) FR2322651A1 (enExample)
GB (1) GB1557044A (enExample)
IT (1) IT1064688B (enExample)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6479428B1 (en) * 1998-07-27 2002-11-12 Battelle Memorial Institute Long life hydrocarbon conversion catalyst and method of making
US11020732B2 (en) 2015-12-22 2021-06-01 Shell Oil Company Catalyst bed and method for reducing nitrogen oxides
CN108472584A (zh) * 2015-12-22 2018-08-31 国际壳牌研究有限公司 催化剂床和用于还原氮氧化物的方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53382B2 (enExample) * 1972-02-25 1978-01-07
US3849342A (en) * 1972-11-29 1974-11-19 Texas Instruments Inc Catalysts for conversion of nitrogen oxide pollutants in automotive exhaust gases
JPS5523086B2 (enExample) * 1973-03-26 1980-06-20
JPS5013590A (enExample) * 1973-06-14 1975-02-13
JPS5417033B2 (enExample) * 1973-06-14 1979-06-27
FR2248261B1 (enExample) * 1973-10-23 1978-04-28 Union Carbide Corp

Also Published As

Publication number Publication date
JPS6052856B2 (ja) 1985-11-21
GB1557044A (en) 1979-12-05
JPS5231971A (en) 1977-03-10
DE2634279A1 (de) 1977-03-10
FR2322651B1 (enExample) 1980-05-23
DE2634279C2 (de) 1982-12-30
CA1090097A (en) 1980-11-25
FR2322651A1 (fr) 1977-04-01

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