GB1434885A - Removing sulphur oxides from gases - Google Patents

Removing sulphur oxides from gases

Info

Publication number
GB1434885A
GB1434885A GB1153774A GB1153774A GB1434885A GB 1434885 A GB1434885 A GB 1434885A GB 1153774 A GB1153774 A GB 1153774A GB 1153774 A GB1153774 A GB 1153774A GB 1434885 A GB1434885 A GB 1434885A
Authority
GB
United Kingdom
Prior art keywords
slurry
sulphur oxides
absorber
solution
removing sulphur
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB1153774A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kawasaki Motors Ltd
Original Assignee
Kawasaki Jukogyo KK
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 Kawasaki Jukogyo KK filed Critical Kawasaki Jukogyo KK
Publication of GB1434885A publication Critical patent/GB1434885A/en
Expired legal-status Critical Current

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (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)

Abstract

1434885 Removing sulphur oxides KAWASAKI JUKOGYO KK 14 March 1974 [14 March 1973] 11537/74 Heading C1A A method of removing sulphur oxides from waste gases comprises absorbing the sulphur oxides in an absorbent slurry of calcium and magnesium hydroxide and/or carbonate in absorber 2 to form sulphites and sulphates, passing the slurry to oxidizer 4 to form a mixture of sulphates at a pH of less than 5 maintained by using H 2 SO 4 , separating the solid calcium sulphate at 5 and passing the resulting MgSO 4 solution to reactor 1 where Ca(OH) 2 and/or CaCO 3 is added to form CaSO 4 and Mg(OH) 2 or MgCO 3 . The slurry may be passed from the absorber 2 to the tank 3 and a portion recirculated via line 13 and a portion of the MgSO 4 solution from 5 may be returned to tank 3 via line 25 to increase the fluidity of the scrubbing solution. The regenerated slurry from reactor 1 may be recirculated to the absorber.
GB1153774A 1973-03-14 1974-03-14 Removing sulphur oxides from gases Expired GB1434885A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP48030279A JPS5211680B2 (en) 1973-03-14 1973-03-14

Publications (1)

Publication Number Publication Date
GB1434885A true GB1434885A (en) 1976-05-05

Family

ID=12299262

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1153774A Expired GB1434885A (en) 1973-03-14 1974-03-14 Removing sulphur oxides from gases

Country Status (4)

Country Link
JP (1) JPS5211680B2 (en)
DE (1) DE2412372C3 (en)
GB (1) GB1434885A (en)
SE (1) SE410400B (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5187168A (en) * 1975-01-29 1976-07-30 Kawasaki Heavy Ind Ltd
GB1547422A (en) * 1975-03-31 1979-06-20 Japan Government Manufacture of gypsum
DE2522439C2 (en) * 1975-05-21 1985-08-14 Saarberg-Hölter-Umwelttechnik GmbH, 6600 Saarbrücken Use of the carbide lime produced from calcium carbide in the production of acetylene
US3985860A (en) * 1975-09-22 1976-10-12 Pullman Incorporated Method for oxidation of SO2 scrubber sludge
JPS5252871A (en) * 1975-10-28 1977-04-28 Mitsubishi Heavy Ind Ltd Method of treating exhaust gas
JPS531171A (en) * 1976-06-10 1978-01-07 Chiyoda Chem Eng & Constr Co Ltd Removal of sulfur oxides in exhaust gas
JPS608850B2 (en) * 1976-08-02 1985-03-06 三菱重工業株式会社 Exhaust gas treatment method
JPS6031764B2 (en) * 1977-01-17 1985-07-24 呉羽化学工業株式会社 Desulfurization method
DE2708984C2 (en) * 1977-03-02 1984-12-06 Hölter, Heinz, Dipl.-Ing., 4390 Gladbeck Process for the production of calcium sulfate hemihydrate
JPS53117683A (en) * 1977-03-23 1978-10-14 Kawasaki Heavy Ind Ltd Removing method for sulfure oxides contained in exhayst gas
US4150096A (en) * 1977-10-31 1979-04-17 Nelms William M Process for treating combustion gases
JPS5771819A (en) * 1980-10-16 1982-05-04 Mitsubishi Heavy Ind Ltd Oxidation of calcium sulfite
DE3240317C2 (en) * 1982-10-30 1986-06-12 Gottfried Bischoff Bau kompl. Gasreinigungs- und Wasserrückkühlanlagen GmbH & Co KG, 4300 Essen Process for the production of calcium sulphate dihydrate in the course of the desulphurisation of flue gases from power plant boiler systems
DE3716566A1 (en) * 1987-05-18 1988-12-01 Fichtel Roland Process for the production of reactive calcium hydroxides for exhaust gas purification
DE8717874U1 (en) * 1987-05-18 1990-11-22 FTU GmbH, 8130 Starnberg Calcium hydroxide for exhaust gas purification

Also Published As

Publication number Publication date
JPS5211680B2 (en) 1977-04-01
DE2412372C3 (en) 1980-02-14
DE2412372A1 (en) 1974-10-17
DE2412372B2 (en) 1976-03-25
JPS49118696A (en) 1974-11-13
SE410400B (en) 1979-10-15

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930314