Process for preventing formation of gypsum scale in a flue gas d

Details Process for preventing formation of gypsum scale in a flue gas d Process for preventing formation of gypsum scale in a flue gas d

1977-12-19

1980-07-22

Gantz, Delbert E.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Sulfur or sulfur containing component

423166, C01B 1700

Patent

active

042139465

ABSTRACT:
In a process for preventing the formation of gypsum scale in a flue gas desulfurization process, in which a gas containing SO.sub.2 is subjected to a desulfurization treatment by a lime-gypsum process, the concentration of Ca(OH).sub.2 in an absorbing solution is maintained at not more than 0.1% by weight, and the absorbing liquid contains not more than 40% by weight of CaCl.sub.2.

REFERENCES:
patent: 3386798 (1968-06-01), Bevans et al.
patent: 3632306 (1972-01-01), Villiers-Fisher et al.
patent: 3959441 (1976-05-01), Furuta et al.
patent: 4080428 (1978-03-01), Holter et al.

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