Treatment of gases containing sulfur dioxide

Details Treatment of gases containing sulfur dioxide Treatment of gases containing sulfur dioxide

1973-10-29

1976-02-10

Vertiz, Oscar R.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Sulfur or sulfur containing component

C01B 1700

Patent

active

039377881

ABSTRACT:
An improvement in wet regenerative SO.sub.2 scrubbing systems using a sulfite-forming additive wherein a thiosulfate-rich aqueous solution is used to prevent oxidation of sulfite to sulfate, to serve as a source of the sulfite-forming additive, and also to increase the salt concentration of the SO.sub.2 absorbent, to thereby permit operation of the scrubbing system at higher temperature.

REFERENCES:
patent: 1795121 (1931-03-01), Hansen
patent: 2729543 (1956-01-01), Keller
patent: 3431070 (1969-03-01), Keller
patent: 3523755 (1970-08-01), McRae
patent: 3574097 (1971-04-01), Urban
patent: 3644087 (1972-02-01), Urban

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