BE903702A - PROCESS FOR TREATING WASTE GASES. - Google Patents

PROCESS FOR TREATING WASTE GASES.

Info

Publication number
BE903702A
BE903702A BE0/215906A BE215906A BE903702A BE 903702 A BE903702 A BE 903702A BE 0/215906 A BE0/215906 A BE 0/215906A BE 215906 A BE215906 A BE 215906A BE 903702 A BE903702 A BE 903702A
Authority
BE
Belgium
Prior art keywords
waste gases
catalytic
treating waste
treatment
oxidative
Prior art date
Application number
BE0/215906A
Other languages
French (fr)
Inventor
H Meier Zu Kocker
Robert Walter
Torsten Schmidt
Original Assignee
Kali Chemie Ag
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 by Kali Chemie Ag filed Critical Kali Chemie Ag
Publication of BE903702A publication Critical patent/BE903702A/en

Links

Classifications

    • 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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Catalysts (AREA)
  • Incineration Of Waste (AREA)

Abstract

Procédé pour abaisser la concentration en polluants dans les gaz usés par traitement thermique et/ou catalytique oxydant, suivant lequel dans le cas de gaz usés contenant des composés organiques azotés et/ou du cyanure d'hydrogène, on soumet en succession du traitement oxydant, thermique et/ou catalytique (3), le courant de gaz résultant à un traitement catalytique au cours d'un stade supplémentaire (8) avec apport d'ammoniac. Le catalyseur est à base de métal noble du groupe du platine et/ou de vanadium.Process for lowering the concentration of pollutants in the waste gases by oxidative heat and / or catalytic treatment, according to which in the case of spent gases containing nitrogenous organic compounds and / or hydrogen cyanide, the oxidative treatment is subjected in succession, thermal and / or catalytic (3), the gas stream resulting from a catalytic treatment during an additional stage (8) with the addition of ammonia. The catalyst is based on a noble metal from the platinum group and / or vanadium.

BE0/215906A 1984-11-24 1985-11-22 PROCESS FOR TREATING WASTE GASES. BE903702A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19843442927 DE3442927A1 (en) 1984-11-24 1984-11-24 EXHAUST GAS TREATMENT METHOD

Publications (1)

Publication Number Publication Date
BE903702A true BE903702A (en) 1986-03-14

Family

ID=6251082

Family Applications (1)

Application Number Title Priority Date Filing Date
BE0/215906A BE903702A (en) 1984-11-24 1985-11-22 PROCESS FOR TREATING WASTE GASES.

Country Status (9)

Country Link
JP (1) JPS61197024A (en)
BE (1) BE903702A (en)
DE (1) DE3442927A1 (en)
ES (1) ES8701511A1 (en)
FR (1) FR2573673A1 (en)
GB (1) GB2167396B (en)
IT (1) IT1185416B (en)
NL (1) NL8502935A (en)
SE (1) SE8505468L (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5955042A (en) * 1995-12-08 1999-09-21 Goldendale Aluminum Company Method of treating spent potliner material from aluminum reduction cells
NL1002847C2 (en) * 1996-04-11 1997-10-15 Sara Lee De Nv Process for the catalytic combustion of waste gases.
US6468483B2 (en) 2000-02-04 2002-10-22 Goldendale Aluminum Company Process for treating alumina-bearing ores to recover metal values therefrom
US6248302B1 (en) 2000-02-04 2001-06-19 Goldendale Aluminum Company Process for treating red mud to recover metal values therefrom
US8337793B2 (en) 2007-10-19 2012-12-25 Ecocat Oy Removal of ammonia from fluids
CN114811624B (en) * 2021-01-22 2024-07-16 中国科学院大学 DMF-containing waste gas purification co-production N2O method

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3599427A (en) * 1969-09-22 1971-08-17 Ford Motor Co Exhaust gas purification
CA966980A (en) * 1971-03-13 1975-05-06 Kawasaki Jukogyo Kabushiki Kaisha Method of treating nitrogen oxide generating substances by combustion
JPS50133995A (en) * 1974-04-11 1975-10-23
JPS513365A (en) * 1974-06-27 1976-01-12 Ishikawajima Harima Heavy Ind Haigasuchuno chitsusosankabutsuno jokyohoho
JPS53108065A (en) * 1977-02-09 1978-09-20 Kurita Water Ind Ltd Treating method for gas containing ammonia
JPS53102866A (en) * 1977-02-21 1978-09-07 Shokubai Kasei Kogyo Kk Treating method for waste gas comtaining ammonia
JPS53123367A (en) * 1977-04-04 1978-10-27 Sumitomo Heavy Ind Ltd Exhaust gas treating method
US4351811A (en) * 1977-07-20 1982-09-28 Hitachi, Ltd. Process for reducing an eliminating nitrogen oxides in an exhaust gas
JPS5829125B2 (en) * 1979-11-05 1983-06-21 トヨタ自動車株式会社 Purification equipment for ammonia or ammonia-containing organic mixed gas

Also Published As

Publication number Publication date
GB2167396A (en) 1986-05-29
IT1185416B (en) 1987-11-12
JPS61197024A (en) 1986-09-01
DE3442927A1 (en) 1986-06-05
NL8502935A (en) 1986-06-16
GB2167396B (en) 1988-06-02
SE8505468D0 (en) 1985-11-19
IT8522443A0 (en) 1985-10-11
GB8523742D0 (en) 1985-10-30
ES8701511A1 (en) 1986-12-01
SE8505468L (en) 1986-05-25
ES549177A0 (en) 1986-12-01
FR2573673A1 (en) 1986-05-30

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: KALI-CHEMIE A.G.

Effective date: 19891130