WO2003074159A8 - Method for purifying waste process gases from sulphur dioxide - Google Patents

Method for purifying waste process gases from sulphur dioxide

Info

Publication number
WO2003074159A8
WO2003074159A8 PCT/RU2003/000065 RU0300065W WO03074159A8 WO 2003074159 A8 WO2003074159 A8 WO 2003074159A8 RU 0300065 W RU0300065 W RU 0300065W WO 03074159 A8 WO03074159 A8 WO 03074159A8
Authority
WO
WIPO (PCT)
Prior art keywords
sulphur dioxide
basic calcium
calcium compound
process gases
calcium
Prior art date
Application number
PCT/RU2003/000065
Other languages
French (fr)
Russian (ru)
Other versions
WO2003074159A1 (en
Inventor
Lev Klimentievich Chuchalin
Alexandr Lvovich Pokrovskii
Anatolii Ivanovich Rezvuhin
Anatolii Andreevich Rusakov
Original Assignee
Lev Klimentievich Chuchalin
Alexandr Lvovich Pokrovskii
Anatolii Ivanovich Rezvuhin
Anatolii Andreevich Rusakov
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 Lev Klimentievich Chuchalin, Alexandr Lvovich Pokrovskii, Anatolii Ivanovich Rezvuhin, Anatolii Andreevich Rusakov filed Critical Lev Klimentievich Chuchalin
Priority to AU2003227387A priority Critical patent/AU2003227387A1/en
Publication of WO2003074159A1 publication Critical patent/WO2003074159A1/en
Publication of WO2003074159A8 publication Critical patent/WO2003074159A8/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
    • B01D53/46—Removing components of defined structure
    • B01D53/48—Sulfur compounds
    • B01D53/50—Sulfur oxides
    • B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F11/00—Compounds of calcium, strontium, or barium
    • C01F11/46—Sulfates
    • C01F11/464—Sulfates of Ca from gases containing sulfur oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/40—Alkaline earth metal or magnesium compounds
    • B01D2251/404—Alkaline earth metal or magnesium compounds of calcium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/30—Sulfur compounds
    • B01D2257/302—Sulfur oxides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Geology (AREA)
  • Biomedical Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treating Waste Gases (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Soil Conditioners And Soil-Stabilizing Materials (AREA)

Abstract

The invention relates to the purification of waste process gases from sulphur dioxide in industries using sulphur-containing raw materials and can be used for power plants, the metallurgical and chemical industries. The aim of the invention is to reduce the consumption of basic calcium compounds, use the coarse grinding thereof, increase the purity of produced gypsum and to reduce the time of the oxidation process of calcium sulphite. The inventive method consists in transferring sulphur dioxide from a gas to the pulp of the basic calcium compound in the form of a water-soluble calcium bisulphite Ca (HSO3)2 at a initial content of the basic calcium compound in said pulp equal to or less than 60 g/dm3 and the molecular-mass ratio between SO2 and the basic calcium compound within the limits of (1-2):1. Afterwards, the calcium bisulphite is air oxidised to sulphate in the presence of the equimolar quantity of the basic calcium compound or by distilling and catching the equimolar quantity of sulphur dioxide.
PCT/RU2003/000065 2002-03-06 2003-02-26 Method for purifying waste process gases from sulphur dioxide WO2003074159A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003227387A AU2003227387A1 (en) 2002-03-06 2003-02-26 Method for purifying waste process gases from sulphur dioxide

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KZ20022006 2002-03-06
KZ2002/2006.1 2002-03-06

Publications (2)

Publication Number Publication Date
WO2003074159A1 WO2003074159A1 (en) 2003-09-12
WO2003074159A8 true WO2003074159A8 (en) 2004-04-08

Family

ID=27786049

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RU2003/000065 WO2003074159A1 (en) 2002-03-06 2003-02-26 Method for purifying waste process gases from sulphur dioxide

Country Status (3)

Country Link
AU (1) AU2003227387A1 (en)
RU (1) RU2212928C1 (en)
WO (1) WO2003074159A1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58172230A (en) * 1982-04-01 1983-10-11 Mitsubishi Heavy Ind Ltd Method for recovering gypsum after desulfurizing exhaust gas
WO1995031272A1 (en) * 1994-05-11 1995-11-23 Babcock-Hitachi Kabushiki Kaisha Wet type exhaust gas desulfurization apparatus and method utilizing solid desulfurizing agent
KR970703808A (en) * 1994-06-09 1997-08-09 토마스 이.리겟 IMPROVED ENTRAINMENT SEPARATOR FOR HIGH VELOCITY GASES AND REHEATING OF SCRUBBER GASES

Also Published As

Publication number Publication date
AU2003227387A1 (en) 2003-09-16
RU2212928C1 (en) 2003-09-27
WO2003074159A1 (en) 2003-09-12

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