GB1434885A - Removing sulphur oxides from gases - Google Patents
Removing sulphur oxides from gasesInfo
- 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
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.
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5187168A (en) * | 1975-01-29 | 1976-07-30 | Kawasaki Heavy Ind Ltd | |
GB1547424A (en) * | 1975-03-31 | 1979-06-20 | Japan Government | Method of producing needlelike 11-anhydrite 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 |
-
1973
- 1973-03-14 JP JP48030279A patent/JPS5211680B2/ja not_active Expired
-
1974
- 1974-03-13 SE SE7403375A patent/SE410400B/en not_active IP Right Cessation
- 1974-03-14 DE DE19742412372 patent/DE2412372C3/en not_active Expired
- 1974-03-14 GB GB1153774A patent/GB1434885A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2412372A1 (en) | 1974-10-17 |
SE410400B (en) | 1979-10-15 |
JPS5211680B2 (en) | 1977-04-01 |
DE2412372B2 (en) | 1976-03-25 |
JPS49118696A (en) | 1974-11-13 |
DE2412372C3 (en) | 1980-02-14 |
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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 |