Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture
Patent
1995-10-06
1997-12-09
Straub, Gary P.
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
423210S, 95134, 588205, 588236, B01D 4700, B01D 5364, C01B 700, A62D 300
Patent
active
056957262
ABSTRACT:
Toxic metal vapor phase compounds, and in particular, mercury and cadmium, are removed from waste incinerator combustion gases by contact with dry alkaline material and dry activated carbon followed by solids separation. The resulting gas is subjected to quench/wet scrubbing with recycle hydrochloric acid solution formed in situ by absorption of HCl from the gas. Blowdown liquid withdrawn from the recycle acid liquor, may be recycled to the incinerator or further treated by neutralization, precipitation, and filtration of the precipitated toxic metals.
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Beco Engineering Company
Straub Gary P.
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