SO.sub.2 removal

Details SO.sub.2 removal SO.sub.2 removal

1982-02-18

1983-06-14

Vertiz, O. R.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Sulfur or sulfur containing component

423244, C01B 1700

Patent

active

043882838

ABSTRACT:
Improved methods are provided for the efficient and economic removal of sulfur dioxide from gases, which comprise contacting the gas with neutralizing values obtained from Type S hydrated lime, i.e. calcined dolomite, slaked with water under elevated temperature and pressure. The Type S hydrated dolomitic lime may be used in conjunction with a wet scrubber to provide base and neutralizing magnesium values, in a spray dryer or dry scrubber, or directly introduced into the boiler. The use of Type S hydrated dolomitic lime greatly enhances the efficiency of sulfur dioxide removal, providing for enhanced utilization of base values and more rapid rate of reaction.

REFERENCES:
patent: 2090143 (1937-08-01), Nonhebel et al.
patent: 2718453 (1955-09-01), Beckman
patent: 3929968 (1975-12-01), Taub
patent: 3932587 (1976-01-01), Grantham et al.
Chemistry and Technology of Lime and Limestone Boynton, 1965.

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