SO.sub.2 control using moving granular beds

Details SO.sub.2 control using moving granular beds SO.sub.2 control using moving granular beds

1990-03-28

1992-12-01

Warden, Robert J.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Fluidized bed

55 73, 55122, 55124, 55126, 55131, 198669, 422172, B01J 808

Patent

active

051679310

ABSTRACT:
A method and apparatus of scrubbing acid gas from flue gas comprises slats which define a moving bed of scrubbing material which is capable of reacting with the acid gas to form reaction products on particles of the scrubbing material. Flue gas from a boiler or other sources of flue gas is passed through the moving bed of scrubbing material. The scrubbing material is sprayed with water to the saturation point for increasing the rate of reaction between the reaction gas on the scrubbing material. The scrubbing material leaving the bottom of the moving bed is subjected to a separation step which removes the reaction products as fine dust which is disgarded, and returns the now regenerated particles of scrubbing material to the top of the moving bed.

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patent: 4764348 (1988-08-01), Furlong
patent: 4888158 (1989-12-01), Downs
patent: 4919898 (1990-04-01), Garstide et al.

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