Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Sulfur or sulfur containing component
Patent
1973-05-09
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
039377873
ABSTRACT:
An improvement in regenerative SO.sub.2 scrubbing systems which use sodium, potassium or ammonium carbonate to react with the SO.sub.2 to form sulfite, wherein a thiosulfate-rich aqueous solution of the carbonate is used to prevent oxidation of the sulfite to sulfate; to serve both as a source of the carbonate and as a source of sulfite-reducing agent; and finally to increase the salt concentration in the SO.sub.2 absorbent solution, to thereby permit operation of the scrubbing system at higher temperatures than those normally employed.
REFERENCES:
patent: 1937196 (1933-11-01), Gollmar
patent: 2729543 (1956-01-01), Keller
patent: 3574097 (1971-04-01), Urban
patent: 3728433 (1973-04-01), Urban
Gorin Everett
Kulik Metro D.
Struck Robert T.
Continental Oil Company
Fowler, Jr. D. Leigh
Heller Gregory A.
Mikesell, Jr. William A.
Price, Jr,. Stanley J.
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