Process for the removal or reduction of gaseous contaminants

Details Process for the removal or reduction of gaseous contaminants Process for the removal or reduction of gaseous contaminants

B - Operations, Transporting

01

D

23/348, 23/358,

B01D 53/34 (2006.01) B01D 53/12 (2006.01) B01D 53/50 (2006.01) B01D 53/68 (2006.01)

Patent

CA 2038953

Summary The invention concerns a process for removal or reduction of gaseous contaminants, especially SO2, SO3, HCl and HF, from flue gases through chemisorption, whereby a solid, fine-grained sorbent is treated by steam in a reactor before being brought into contact with the flue gas; by the sorbent before entering the reactor being brought to a temperature of preferably 10 to 50°C below the dewpoint of steam in the reactor; and by the sorbent being brought into contact in the reactor with steam of a temperature not higher than 60°C above, and preferably 10 to 40°C above, the dewpoint temperature.

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