Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Sulfur or sulfur containing component
Patent
1979-01-02
1981-01-20
Vertiz, O. R.
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Sulfur or sulfur containing component
423166, 423512A, C01B 1700
Patent
active
042462452
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: 2718453 (1955-09-01), Beckman
patent: 3622270 (1971-11-01), Shah
patent: 3650692 (1972-03-01), Villiers-Fisher
patent: 3653823 (1972-04-01), Shah
patent: 3904742 (1975-09-01), Akimoto
patent: 3929968 (1975-12-01), Taub
patent: 3932587 (1976-01-01), Grantham et al.
Chemistry and Technology of Lime and Limestones, Boynton, 1965.
Abrams Jack Z.
Sherwin Robert M.
Bechtel International Corporation
Heller Gregory A.
Rowland Bertram I.
Vertiz O. R.
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