Process for the removal of sulfur dioxide from exhaust flue gase

Details Process for the removal of sulfur dioxide from exhaust flue gase Process for the removal of sulfur dioxide from exhaust flue gase

1974-09-19

1978-09-12

Vertiz, O. R.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Sulfur or sulfur containing component

423522, C01B 1300, C01B 1772

Patent

active

041138406

ABSTRACT:
Sulfur dioxide is removed from exhaust flue gases continuously by contact with adsorbent, activated carbon, in aqueous slurry form, preferably in a venturi contactor. The carbon with adsorbed sulfur dioxide is partially dewatered and passed to an oxidation zone in which the sulfur dioxide is converted to sulfur trioxide and absorbed into the aqueous phase to form saleable sulfuric acid. The desorbed activated carbon is recycled to the venturi contactor.

REFERENCES:
patent: 2021936 (1935-11-01), Johnstone
patent: 2342704 (1944-02-01), Striplin
patent: 3745751 (1973-07-01), Zey et al.
patent: 3766090 (1973-10-01), Juntgen et al.
patent: 3775532 (1973-11-01), Shah
patent: 3808321 (1974-04-01), Fukji et al.
patent: 3907970 (1975-09-01), Boering
patent: 3950493 (1976-04-01), Dorr et al.

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