Sulfur dioxide removal from stack gas

Details Sulfur dioxide removal from stack gas Sulfur dioxide removal from stack gas

1990-09-07

1992-01-28

Straub, Gary P.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Sulfur or sulfur containing component

423533, 423535, 502305, 502312, C01B 1776, B01J 2316

Patent

active

050842579

ABSTRACT:
A process for the removal of sulfur dioxide from gasses produced by processes resulting in off gases at elevated temperatures as in the combustion of sulfur containing fuels such as coal and fuel oil by contacting the gasses with a composition including a source of calcium, and a catalytically effective amount of a molybdenum containing catalyst for the oxidation of sulfur dioxide to sulfur trioxide which then reacts with the calcium compound to form calcium sulfate.

REFERENCES:
patent: 3607034 (1971-09-01), Henry
patent: 3798308 (1974-03-01), Knowles et al.
patent: 3873673 (1975-03-01), Teague et al.
patent: 4193894 (1980-03-01), Villadsen
patent: 4399112 (1983-08-01), Voirin
patent: 4590049 (1986-05-01), Staudinger
patent: 4649034 (1987-03-01), Rutledge
patent: 4867955 (1989-09-01), Johnson
"TVA Puts Burning Technology to Work", Peabody Coal Magazine, 11/88, pp. 28-29.
"The Catalytic-Oxidation System for Removing SO.sub.2 from FlueGas" Monsanto Co., 1968.

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