Method of desulfurizing industrial flue gases

Details Method of desulfurizing industrial flue gases Method of desulfurizing industrial flue gases

1986-01-31

1986-12-09

Heller, Gregory A.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Sulfur or sulfur containing component

423166, 423555, C01B 1700

Patent

active

046279652

ABSTRACT:
A method of and an apparatus for the desulfurization of an industrial flue gas wherein the recirculating scrubbing liquid is sprayed with atomization into the scrubbing zone of a column and the droplet size, degree of atomization and gas flow velocity are controlled so that the pH of the scrubbing liquid within the scrubbing zone is substantially 3 to 6, preferably 4 to 5. In the sump oxidation is carried out by the introduction of oxygen to oxidize the calcium sulfite and calcium hydrogen sulfite which is formed to calcium sulfate.

REFERENCES:
patent: 2080779 (1937-05-01), Lessing
patent: 4080428 (1978-03-01), Holter et al

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