BG47242A1 - Method and device for electrochemical catalyst oxidation of sulphur dioxide - Google Patents

Method and device for electrochemical catalyst oxidation of sulphur dioxide

Info

Publication number
BG47242A1
BG47242A1 BG80864A BG8086487A BG47242A1 BG 47242 A1 BG47242 A1 BG 47242A1 BG 80864 A BG80864 A BG 80864A BG 8086487 A BG8086487 A BG 8086487A BG 47242 A1 BG47242 A1 BG 47242A1
Authority
BG
Bulgaria
Prior art keywords
catalyst
sulphur dioxide
catalytic
activated carbon
sulphuric acid
Prior art date
Application number
BG80864A
Inventor
Evgeni B Budevski
Todor V Donchev
Veselin B Najdenov
Ivan P Nikolov
Konstantin M Petrov
Khristo I Khristov
Original Assignee
Ts Lab Elektrokhimicheski Izto
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 Ts Lab Elektrokhimicheski Izto filed Critical Ts Lab Elektrokhimicheski Izto
Priority to BG80864A priority Critical patent/BG47242A1/en
Priority to JP63134280A priority patent/JPH01100004A/en
Priority to EP88110390A priority patent/EP0302224B1/en
Priority to HU883367A priority patent/HUT47887A/en
Priority to AT88110390T priority patent/ATE79833T1/en
Priority to DE8888110390T priority patent/DE3874044D1/en
Priority to CN88104242A priority patent/CN1032772A/en
Publication of BG47242A1 publication Critical patent/BG47242A1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/69—Sulfur trioxide; Sulfuric acid
    • C01B17/74—Preparation
    • C01B17/76—Preparation by contact processes
    • C01B17/775—Liquid phase contacting processes or wet catalysis processes
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/69—Sulfur trioxide; Sulfuric acid
    • C01B17/74—Preparation
    • C01B17/76—Preparation by contact processes
    • C01B17/78—Preparation by contact processes characterised by the catalyst used
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/69—Sulfur trioxide; Sulfuric acid
    • C01B17/74—Preparation
    • C01B17/76—Preparation by contact processes
    • C01B17/80—Apparatus
    • C01B17/803—Converters

Abstract

The electrochemical, catalytic oxidation of sulphur dioxide to sulphuric acid is carried out by bringing a gas mixture having a sulphur dioxide content of 0.01 to 50% by volume simultaneously into contact with oxygen and an electrolyte - water or a solution of sulphuric acid - over a catalyst which is activated carbon or activated carbon provided with metal complexes of organic compounds (porphyrins, anulenes, phthalocyanines, and the like) or products of their thermal decomposition, or activated carbon provided with platinum, palladium or rhodium in amounts of 0.1 to 1% by weight and has been made hydrophobic by means of hydrophobic polymer compounds (polytetrafluoroethylene, polyisobutylene, polyethylene, and the like) or by means of a mixture of a few of these compounds at a ratio of catalyst : hydrophobisizing agent of 25:1 to 1:4 at a reaction temperature of 10 to 80 DEG C. In the apparatus according to the invention, the hydrophobisized catalyst is applied as a porous catalytic layer to sheets made of a hydrophilic fibre base or a porous base, which leads to formation of a three dimensional matrix for holding back and draining the acid. These catalytic sheets are arranged such that gas ducts are formed between them whose constant volume is secured by means of spacing elements. The upper ends of the catalytic sheets are mounted in the distributing tank for the acid feed. The electrochemical, catalytic oxidation of sulphur dioxide to sulphuric acid with simultaneous participation of oxygen and water takes place in the porous layers of the hydrophobisized catalyst which forms a spacing layer between liquid phase and gas phase. <IMAGE>
BG80864A 1987-08-06 1987-08-06 Method and device for electrochemical catalyst oxidation of sulphur dioxide BG47242A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
BG80864A BG47242A1 (en) 1987-08-06 1987-08-06 Method and device for electrochemical catalyst oxidation of sulphur dioxide
JP63134280A JPH01100004A (en) 1987-08-06 1988-05-31 Electrochemically catalytic oxidation and equipment for sulfur dioxide
EP88110390A EP0302224B1 (en) 1987-08-06 1988-06-29 Process and apparatus for the electrochemical, catalytic oxidation of sulphur dioxide to sulphuric acid
HU883367A HUT47887A (en) 1987-08-06 1988-06-29 Process and apparatus for catalytic oxidation of sulfur dioxide
AT88110390T ATE79833T1 (en) 1987-08-06 1988-06-29 PROCESS AND DEVICE FOR THE ELECTROCHEMICAL, CATALYTIC OXIDATION OF SULFUR DIOXIDE TO SULFURIC ACID.
DE8888110390T DE3874044D1 (en) 1987-08-06 1988-06-29 METHOD AND DEVICE FOR THE ELECTROCHEMICAL, CATALYTIC OXIDATION OF SULFUR DIOXIDE TO SULFURIC ACID.
CN88104242A CN1032772A (en) 1987-08-06 1988-07-11 The method and apparatus of electrochemical catalytic oxidation of sulphur dioxide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BG80864A BG47242A1 (en) 1987-08-06 1987-08-06 Method and device for electrochemical catalyst oxidation of sulphur dioxide

Publications (1)

Publication Number Publication Date
BG47242A1 true BG47242A1 (en) 1990-06-15

Family

ID=3919451

Family Applications (1)

Application Number Title Priority Date Filing Date
BG80864A BG47242A1 (en) 1987-08-06 1987-08-06 Method and device for electrochemical catalyst oxidation of sulphur dioxide

Country Status (7)

Country Link
EP (1) EP0302224B1 (en)
JP (1) JPH01100004A (en)
CN (1) CN1032772A (en)
AT (1) ATE79833T1 (en)
BG (1) BG47242A1 (en)
DE (1) DE3874044D1 (en)
HU (1) HUT47887A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1972864B (en) * 2004-04-22 2010-12-29 弗劳尔科技公司 Configuration and method for effluent gas treatment
LU93013B1 (en) 2016-04-04 2017-11-08 Cppe Carbon Process & Plant Eng S A En Abrege Cppe S A Process for the removal of heavy metals from fluids
LU93012B1 (en) * 2016-04-04 2017-11-08 Cppe Carbon Process & Plant Eng S A En Abrege Cppe S A Sulfur dioxide removal from waste gas
LU93014B1 (en) 2016-04-04 2017-10-05 Ajo Ind S A R L Catalyst mixture for the treatment of waste gas

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE598589A (en) * 1959-12-28
NL135676C (en) * 1960-10-17
DE2320537C3 (en) * 1973-04-21 1975-09-25 Laboratorium Fuer Adsorptionstechnik Gmbh, 6000 Frankfurt Process for the removal of SO deep 2 from gases containing SO deep 2
US4042668A (en) * 1975-10-15 1977-08-16 E. I. Du Pont De Nemours And Company SO2 removal process
DE2946645C2 (en) * 1979-11-19 1984-12-20 Vsesojuznyj nau&ccaron;no-issledovatel'skij i ispytatel'nyj institut medicinskoj techniki, Moskau/Moskva Process for the production of sorbents containing activated carbon
DE3303289A1 (en) * 1983-02-01 1984-08-02 Bayer Ag, 5090 Leverkusen METHOD FOR THE PRODUCTION OF SULFURIC ACID AND OLEUM

Also Published As

Publication number Publication date
EP0302224A3 (en) 1989-07-19
EP0302224B1 (en) 1992-08-26
JPH01100004A (en) 1989-04-18
HUT47887A (en) 1989-04-28
CN1032772A (en) 1989-05-10
ATE79833T1 (en) 1992-09-15
EP0302224A2 (en) 1989-02-08
DE3874044D1 (en) 1992-10-01

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