IT1009216B - Procedimento per l eliminazione se lettiva degli ossidi di azoto da gas di scarico - Google Patents

Procedimento per l eliminazione se lettiva degli ossidi di azoto da gas di scarico

Info

Publication number
IT1009216B
IT1009216B IT6759774A IT6759774A IT1009216B IT 1009216 B IT1009216 B IT 1009216B IT 6759774 A IT6759774 A IT 6759774A IT 6759774 A IT6759774 A IT 6759774A IT 1009216 B IT1009216 B IT 1009216B
Authority
IT
Italy
Prior art keywords
lettive
elimination
procedure
exhaust gas
nitrogen oxides
Prior art date
Application number
IT6759774A
Other languages
English (en)
Original Assignee
Sumitomo Chemical Co
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 JP48026759A external-priority patent/JPS49114573A/ja
Priority claimed from JP10566073A external-priority patent/JPS5328019B2/ja
Application filed by Sumitomo Chemical Co filed Critical Sumitomo Chemical Co
Application granted granted Critical
Publication of IT1009216B publication Critical patent/IT1009216B/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
    • B01J23/30—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
    • B01D53/92—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
    • B01D53/9418—Processes characterised by a specific catalyst for removing nitrogen oxides by selective catalytic reduction [SCR] using a reducing agent in a lean exhaust gas
    • 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
    • B01J23/28—Molybdenum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants
    • B01D2251/206—Ammonium compounds
    • B01D2251/2062—Ammonia
    • 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
    • B01D2255/20723—Vanadium
    • 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
    • B01D2255/20769—Molybdenum
    • 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
    • B01D2255/20776—Tungsten
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/209—Other metals
    • B01D2255/2092—Aluminium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biomedical Technology (AREA)
  • Combustion & Propulsion (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
IT6759774A 1973-03-06 1974-03-06 Procedimento per l eliminazione se lettiva degli ossidi di azoto da gas di scarico IT1009216B (it)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP48026759A JPS49114573A (it) 1973-03-06 1973-03-06
JP10566073A JPS5328019B2 (it) 1973-09-18 1973-09-18

Publications (1)

Publication Number Publication Date
IT1009216B true IT1009216B (it) 1976-12-10

Family

ID=26364581

Family Applications (1)

Application Number Title Priority Date Filing Date
IT6759774A IT1009216B (it) 1973-03-06 1974-03-06 Procedimento per l eliminazione se lettiva degli ossidi di azoto da gas di scarico

Country Status (4)

Country Link
DE (1) DE2410715B2 (it)
FR (1) FR2220296B1 (it)
GB (1) GB1451290A (it)
IT (1) IT1009216B (it)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5915022B2 (ja) * 1976-03-26 1984-04-07 株式会社日立製作所 排ガス中の窒素酸化物除去用触媒
DE102014113784A1 (de) * 2014-09-24 2016-03-24 Umicore Ag & Co. Kg Verfahren zur Herstellung eines Vanadium-haltigen Katalysators
DE102014113786A1 (de) * 2014-09-24 2016-03-24 Umicore Ag & Co. Kg Verfahren zur Herstellung eines Wolfram-haltigen Katalysators

Also Published As

Publication number Publication date
DE2410715A1 (de) 1974-09-12
FR2220296A1 (it) 1974-10-04
DE2410715B2 (de) 1980-02-28
GB1451290A (en) 1976-09-29
FR2220296B1 (it) 1978-01-06

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