Removal of so2 from gases

Details Removal of so2 from gases Removal of so2 from gases

B - Operations, Transporting

01

D

23/349, 204/98.0

B01D 53/50 (2006.01)

Patent

CA 1065273

ABSTRACT OF THE DISCLOSURE Sulfur dioxide is separated from an aqueous solution containing the same by subjecting the stream to electrodialytic water splitting. In particular a novel method for removing SO2 from dilute gas streams by means of alkaline solution scrubbing, regeneration of the scrubbing solution and liberation of con- centrated SO2 effected by means of a two-compartment membrane water splitter is provided. Optionally, waste sulfate produced in the process may be converted to sulfuric acid in a separate membrane water splitter or otherwise processed by conventional means.

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