Method for the purification of flue gases

Details Method for the purification of flue gases Method for the purification of flue gases

1984-01-13

1986-05-20

Heller, Gregory A.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Sulfur or sulfur containing component

423555, C01B 1700

Patent

active

045900469

ABSTRACT:
Procedure and plant for spray drying absorption of flue gases by separation of SO.sub.2. A suspension of finely-ground limestone is added to a reactor via an oxidation and acidification unit, where the finely-ground limestone is mixed with recirculated solids and air, oxygen and/or some of the flue gases. Preferably, the recirculated solids is also subjected to reactivation by wet-grinding.

REFERENCES:
patent: 3708266 (1973-01-01), Gustausson
patent: 4061716 (1977-12-01), McGauley
patent: 4279873 (1981-07-01), Felsvang et al.
patent: 4328195 (1982-05-01), Mori et al.
patent: 4434146 (1984-02-01), Weber
patent: 4472364 (1984-09-01), Bauerle et al.
patent: 4487784 (1984-12-01), Kuroda et al.

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