Modified dry limestone process for control of sulfur dioxide...

Details Modified dry limestone process for control of sulfur dioxide... Modified dry limestone process for control of sulfur dioxide...

B - Operations, Transporting

01

D

23/348, 23/387

B01D 53/34 (2006.01) B01D 53/50 (2006.01)

Patent

CA 1062441

ABSTRACT OF THE DISCLOSURE A method and apparatus for removing sulfur oxides from flue gas comprise cooling and conditioning the hot flue gas to increase the degree of water vapor saturation prior to passage through a bed of subscantially dry carbonate chips or lumps, e.g., crushed limestone. The reaction products form as a thick layer of sulfites and sulfates on the surface of the chips which is easily removed by agitation to restore the reactive surface of the chips.

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