SE407605B - REDUCTION CATALYST FOR THE REMOVAL OF NITROGEN OXIDES IN EXHAUST GASES - Google Patents

REDUCTION CATALYST FOR THE REMOVAL OF NITROGEN OXIDES IN EXHAUST GASES

Info

Publication number
SE407605B
SE407605B SE7411524A SE7411524A SE407605B SE 407605 B SE407605 B SE 407605B SE 7411524 A SE7411524 A SE 7411524A SE 7411524 A SE7411524 A SE 7411524A SE 407605 B SE407605 B SE 407605B
Authority
SE
Sweden
Prior art keywords
removal
exhaust gases
nitrogen oxides
reduction catalyst
catalyst
Prior art date
Application number
SE7411524A
Other languages
Swedish (sv)
Other versions
SE7411524L (en
Inventor
T Tamura
N Fujita
C Matsuura
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 JP10349573A external-priority patent/JPS5315708B2/ja
Priority claimed from JP10349673A external-priority patent/JPS5315709B2/ja
Priority claimed from JP11027873A external-priority patent/JPS5315711B2/ja
Priority claimed from JP11027773A external-priority patent/JPS5315710B2/ja
Application filed by Kogyo Kaihatsu Kenkyusho Ind R filed Critical Kogyo Kaihatsu Kenkyusho Ind R
Publication of SE7411524L publication Critical patent/SE7411524L/xx
Publication of SE407605B publication Critical patent/SE407605B/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)
  • Crystallography & Structural Chemistry (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)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
SE7411524A 1973-09-13 1974-09-12 REDUCTION CATALYST FOR THE REMOVAL OF NITROGEN OXIDES IN EXHAUST GASES SE407605B (en)

Applications Claiming Priority (4)

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

Publications (2)

Publication Number Publication Date
SE7411524L SE7411524L (en) 1975-03-14
SE407605B true SE407605B (en) 1979-04-02

Family

ID=27469133

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7411524A SE407605B (en) 1973-09-13 1974-09-12 REDUCTION CATALYST FOR THE REMOVAL OF NITROGEN OXIDES IN EXHAUST GASES

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
FR2243732A1 (en) 1975-04-11
SE7411524L (en) 1975-03-14
FR2243732B1 (en) 1979-03-09
GB1474119A (en) 1977-05-18
NL7412183A (en) 1975-03-17
AT344668B (en) 1978-08-10
DE2443899A1 (en) 1975-04-03
ATA728374A (en) 1977-12-15
DE2443899C3 (en) 1978-11-30
AU7259874A (en) 1976-02-26
CH596880A5 (en) 1978-03-31
IT1021324B (en) 1978-01-30
DE2443899B2 (en) 1978-03-23
SU660571A3 (en) 1979-04-30

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