JPS5516699B2 - - Google Patents

Info

Publication number
JPS5516699B2
JPS5516699B2 JP11742476A JP11742476A JPS5516699B2 JP S5516699 B2 JPS5516699 B2 JP S5516699B2 JP 11742476 A JP11742476 A JP 11742476A JP 11742476 A JP11742476 A JP 11742476A JP S5516699 B2 JPS5516699 B2 JP S5516699B2
Authority
JP
Japan
Legal status (The legal status 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 status listed.)
Expired
Application number
JP11742476A
Other languages
Japanese (ja)
Other versions
JPS5343092A (en
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 filed Critical
Priority to JP11742476A priority Critical patent/JPS5343092A/ja
Priority to US05/836,961 priority patent/US4186109A/en
Priority to BE181281A priority patent/BE859172A/fr
Priority to FR7729331A priority patent/FR2366058A1/fr
Priority to DE2744688A priority patent/DE2744688C2/de
Publication of JPS5343092A publication Critical patent/JPS5343092A/ja
Priority to US06/117,765 priority patent/US4282115A/en
Publication of JPS5516699B2 publication Critical patent/JPS5516699B2/ja
Granted legal-status Critical Current

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
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/04—Mixing
    • 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
    • B01J23/20—Vanadium, niobium or tantalum
    • B01J23/22—Vanadium
    • 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
    • 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
    • B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • B01J27/02—Sulfur, selenium or tellurium; Compounds thereof
    • 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
    • B01D2255/20707—Titanium
    • 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
    • B01D2255/20738—Iron
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Catalysts (AREA)
JP11742476A 1976-09-30 1976-09-30 Exhaust gas treatment catalyst Granted JPS5343092A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP11742476A JPS5343092A (en) 1976-09-30 1976-09-30 Exhaust gas treatment catalyst
US05/836,961 US4186109A (en) 1976-09-30 1977-09-27 Catalyst for selectively reducing nitrogen oxides from oxygen-containing exhaust gases
BE181281A BE859172A (fr) 1976-09-30 1977-09-29 Catalyseur pour la reduction selective de protoxydes d'azote a partir de gaz expulses contenant de l'oxygene
FR7729331A FR2366058A1 (fr) 1976-09-30 1977-09-29 Catalyseur pour la reduction selective d'oxydes d'azote provenant de gaz de combustion contenant de l'oxygene
DE2744688A DE2744688C2 (de) 1976-09-30 1977-09-30 Katalysator zur selektiven katalytischen Reduktion von Stickstoffoxiden
US06/117,765 US4282115A (en) 1976-09-30 1980-02-01 Catalyst for selectively reducing nitrogen oxides from oxygen-containing exhaust gases

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11742476A JPS5343092A (en) 1976-09-30 1976-09-30 Exhaust gas treatment catalyst

Publications (2)

Publication Number Publication Date
JPS5343092A JPS5343092A (en) 1978-04-18
JPS5516699B2 true JPS5516699B2 (it) 1980-05-06

Family

ID=14711292

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11742476A Granted JPS5343092A (en) 1976-09-30 1976-09-30 Exhaust gas treatment catalyst

Country Status (2)

Country Link
JP (1) JPS5343092A (it)
BE (1) BE859172A (it)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02107301U (it) * 1989-02-16 1990-08-27

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02107301U (it) * 1989-02-16 1990-08-27

Also Published As

Publication number Publication date
BE859172A (fr) 1978-01-16
JPS5343092A (en) 1978-04-18

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