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IT1021324B - SELETTI VA REDUCTION CATALYST TO PURIFY EXHAUST GAS FROM NITROGEN OXIDES AND REDUCTION PROCEDURE - Google Patents

SELETTI VA REDUCTION CATALYST TO PURIFY EXHAUST GAS FROM NITROGEN OXIDES AND REDUCTION PROCEDURE

Info

Publication number
IT1021324B
IT1021324B IT27226/74A IT2722674A IT1021324B IT 1021324 B IT1021324 B IT 1021324B IT 27226/74 A IT27226/74 A IT 27226/74A IT 2722674 A IT2722674 A IT 2722674A IT 1021324 B IT1021324 B IT 1021324B
Authority
IT
Italy
Prior art keywords
reduction
seletti
exhaust gas
nitrogen oxides
purify exhaust
Prior art date
Application number
IT27226/74A
Other languages
Italian (it)
Original Assignee
Kogyo Kaihatsu Kenkyusho Ind R
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 JP10349673A external-priority patent/JPS5315709B2/ja
Priority claimed from JP10349573A external-priority patent/JPS5315708B2/ja
Priority claimed from JP11027773A external-priority patent/JPS5315710B2/ja
Priority claimed from JP11027873A external-priority patent/JPS5315711B2/ja
Application filed by Kogyo Kaihatsu Kenkyusho Ind R filed Critical Kogyo Kaihatsu Kenkyusho Ind R
Application granted granted Critical
Publication of IT1021324B publication Critical patent/IT1021324B/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
    • B01J29/72—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65 containing iron group metals, noble metals or copper
    • B01J29/76—Iron group metals or copper
    • 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
    • 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
    • B01J29/50—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the erionite or offretite type, e.g. zeolite T, as exemplified by patent document US2950952
    • B01J29/58—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the erionite or offretite type, e.g. zeolite T, as exemplified by patent document US2950952 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
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2229/00—Aspects of molecular sieve catalysts not covered by B01J29/00
    • B01J2229/30—After treatment, characterised by the means used
    • B01J2229/40—Special temperature treatment, i.e. other than just for template removal

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biomedical Technology (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
IT27226/74A 1973-09-13 1974-09-12 SELETTI VA REDUCTION CATALYST TO PURIFY EXHAUST GAS FROM NITROGEN OXIDES AND REDUCTION PROCEDURE IT1021324B (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP10349673A JPS5315709B2 (en) 1973-09-13 1973-09-13
JP10349573A JPS5315708B2 (en) 1973-09-13 1973-09-13
JP11027773A JPS5315710B2 (en) 1973-09-26 1973-09-26
JP11027873A JPS5315711B2 (en) 1973-09-26 1973-09-26

Publications (1)

Publication Number Publication Date
IT1021324B true IT1021324B (en) 1978-01-30

Family

ID=27469133

Family Applications (1)

Application Number Title Priority Date Filing Date
IT27226/74A IT1021324B (en) 1973-09-13 1974-09-12 SELETTI VA REDUCTION CATALYST TO PURIFY EXHAUST GAS FROM NITROGEN OXIDES AND REDUCTION PROCEDURE

Country Status (10)

Country Link
AT (1) AT344668B (en)
BR (1) BR7407660D0 (en)
CH (1) CH596880A5 (en)
DE (1) DE2443899C3 (en)
FR (1) FR2243732B1 (en)
GB (1) GB1474119A (en)
IT (1) IT1021324B (en)
NL (1) NL7412183A (en)
SE (1) SE407605B (en)
SU (1) SU660571A3 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE68912262T2 (en) * 1988-10-07 1994-05-11 Sakai Chemical Industry Co Denitration catalysts and processes.
DE3841990A1 (en) * 1988-12-14 1990-06-21 Degussa PROCESS FOR REDUCING STICK OXIDES FROM EXHAUST GASES
DE4014606A1 (en) * 1989-05-15 1990-11-22 Cottrell Res Inc REDUCTION OF NO (DOWN ARROW) X (DOWN ARROW) BY STAGE FUEL COMBUSTION WITH ACETYLENE-LIKE FUELS
JPH07106300B2 (en) * 1989-12-08 1995-11-15 財団法人産業創造研究所 Method for removing nitrogen oxides in combustion exhaust gas
DE102005010221A1 (en) * 2005-03-05 2006-09-07 S&B Industrial Minerals Gmbh Process for the preparation of a catalytically active mineral based on a framework silicate

Also Published As

Publication number Publication date
BR7407660D0 (en) 1975-07-08
DE2443899C3 (en) 1978-11-30
DE2443899B2 (en) 1978-03-23
FR2243732B1 (en) 1979-03-09
SE7411524L (en) 1975-03-14
SU660571A3 (en) 1979-04-30
SE407605B (en) 1979-04-02
CH596880A5 (en) 1978-03-31
AU7259874A (en) 1976-02-26
FR2243732A1 (en) 1975-04-11
GB1474119A (en) 1977-05-18
AT344668B (en) 1978-08-10
NL7412183A (en) 1975-03-17
DE2443899A1 (en) 1975-04-03
ATA728374A (en) 1977-12-15

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