Apparatus for removing SO.sub.2 from flue gases and for producin

Details Apparatus for removing SO.sub.2 from flue gases and for producin Apparatus for removing SO.sub.2 from flue gases and for producin

1998-07-10

2000-10-31

Tran, Hien

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Waste gas purifier

422168, 422170, 422172, B01D 5350

Patent

active

061398071

ABSTRACT:
An apparatus for removing SO.sub.2 from flue gas treats the hot flue gas with a sump liquid to quench the flue gas and saturate it with water while concentrating ammonium sulfate in the recycled liquid. The gas is then scrubbed in a packed scrubbing zone with a solution of ammonia water, untreated recycled ammonium sulfite and ammonium hydrogen sulfite, and ammonium sulfate solution from an oxidizer to which a partial stream of the scrubbing liquid is fed.

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