CH608387A5 - Method for preparing a reduction catalyst for removing nitrogen oxides from exhaust gases - Google Patents

Method for preparing a reduction catalyst for removing nitrogen oxides from exhaust gases

Info

Publication number
CH608387A5
CH608387A5 CH266777A CH266777A CH608387A5 CH 608387 A5 CH608387 A5 CH 608387A5 CH 266777 A CH266777 A CH 266777A CH 266777 A CH266777 A CH 266777A CH 608387 A5 CH608387 A5 CH 608387A5
Authority
CH
Switzerland
Prior art keywords
preparing
exhaust gases
nitrogen oxides
reduction catalyst
removing nitrogen
Prior art date
Application number
CH266777A
Inventor
Takaaki Prof Dr Tamura
Norihiko Fujita
Chihiro Matsuura
Wataru Ito
Naoki Negishi
Original Assignee
Kaihatsu Kenkyusho Ind Res
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 US05/663,833 external-priority patent/US4097576A/en
Application filed by Kaihatsu Kenkyusho Ind Res filed Critical Kaihatsu Kenkyusho Ind Res
Publication of CH608387A5 publication Critical patent/CH608387A5/en

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
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/70—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65
    • B01J29/78—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65 containing arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • 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
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/18—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the mordenite type
    • B01J29/26—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the mordenite type containing arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
CH266777A 1976-03-04 1977-03-03 Method for preparing a reduction catalyst for removing nitrogen oxides from exhaust gases CH608387A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/663,833 US4097576A (en) 1975-03-08 1976-03-04 Reduction catalyst for removal of nitrogen oxides in exhaust gas

Publications (1)

Publication Number Publication Date
CH608387A5 true CH608387A5 (en) 1979-01-15

Family

ID=24663439

Family Applications (1)

Application Number Title Priority Date Filing Date
CH266777A CH608387A5 (en) 1976-03-04 1977-03-03 Method for preparing a reduction catalyst for removing nitrogen oxides from exhaust gases

Country Status (4)

Country Link
JP (1) JPS52106390A (en)
CH (1) CH608387A5 (en)
DE (2) DE2709064A1 (en)
SE (1) SE7612134L (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3312890A1 (en) * 1983-04-11 1984-10-11 Zbigniew Dr. 6078 Neu-Isenburg Boguslawski METHOD AND DEVICE FOR PURIFYING COMBUSTION GASES FROM EXAMPLE HOUSEHOLD HEATERS, COMBUSTION ENGINES OR THE LIKE. FIREPLACES
FR2775200B1 (en) * 1998-02-20 2000-04-28 Inst Francais Du Petrole CATALYST COMPRISING A ZEOLITHE NU-88, AN ELEMENT OF THE VB GROUP AND ITS USE IN HYDROCONVERSION OF HYDROCARBON OIL LOADS

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5315710B2 (en) * 1973-09-26 1978-05-26
JPS5315711B2 (en) * 1973-09-26 1978-05-26
JPS5339200B2 (en) * 1974-07-09 1978-10-19
JPS5437591A (en) * 1977-08-30 1979-03-20 Nec Corp Zener diode

Also Published As

Publication number Publication date
DE2709498A1 (en) 1977-10-20
DE2709064A1 (en) 1977-09-15
JPS6136977B2 (en) 1986-08-21
SE7612134L (en) 1977-09-05
JPS52106390A (en) 1977-09-06

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Legal Events

Date Code Title Description
PL Patent ceased