Gas desulfurization reactant

Details Gas desulfurization reactant Gas desulfurization reactant

1983-09-14

1985-11-12

Heller, Gregory A.

Compositions

Co, s, negative element, or acid, bindant containing

423244, 423635, C09K 300, B01J 800, C01B 1700

Patent

active

045526834

ABSTRACT:
A process for adsorbing sulfur dioxide from a gas comprising contacting a gas containing SO.sub.2, such as a flue gas, with about stoichiometric amounts of a specially prepared calcium oxide so that substantially all of the sulfur dioxide content is reacted throughout the calcium oxide particle to form a calcium sulfate reaction product. The useful calcium oxide particles comprise a highly voided skeletal structure of very large surface area and large pore volume with numerous macro pores. Such particles are obtained by flash calcining sand-size grains of calcium carbonate, such as aragonite, calcite or dolomite.

REFERENCES:
patent: 3718453 (1955-09-01), Beckman
patent: 3781408 (1973-12-01), Lin
Boynton, Chemistry and Technology of Lime and Limestone, 1966, pp. 146-147.
Chemical Abstracts: vol. 85, 112304, 1976.

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