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Method for removing sulfur dioxide from waste gases

Patent ·
OSTI ID:7143410
; ; ; ;
A method for removing sulfur dioxide from waste gases by a wet oxidation-absorption method, which is characterized in that an aqueous solution of ammonium sulfate acidified with sulfuric acid at a pH range of from 3 to 4 is used as the absorbent. The SO/sub 2/ contained in the waste gases is absorbed with the aqueous solution of ammonium sulfate in an absorption tower and then oxidized with air or oxygen to be converted into sulfuric acid in an oxidation tower.
Assignee:
Kurashiki Boseki Kabushiki Kaisha
Patent Number(s):
US 3983217
OSTI ID:
7143410
Country of Publication:
United States
Language:
English

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Related Subjects

20 FOSSIL-FUELED POWER PLANTS
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500200 -- Environment
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54 ENVIRONMENTAL SCIENCES
ABSORPTION
CHALCOGENIDES
CHEMICAL REACTIONS
DESULFURIZATION
FLUE GAS
GASEOUS WASTES
OXIDATION
OXIDES
OXYGEN COMPOUNDS
REMOVAL
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
WASTES