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Process for removal of sulfur dioxide from gases |
| T998010 |
Process for removal of sulfur dioxide from gases
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| Inventor: |
Gorin |
| Date Issued: |
September 2, 1980 |
| Application: |
06/095,742 |
| Filed: |
November 19, 1979 |
| Inventors: |
Gorin; Everett (San Rafael, CA)
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| Assignee: |
Continental Oil Company (Stamford, CT) |
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| U.S. Class: |
423/243.12 |
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| Abstract: |
An improvement is provided in the regeneration system of agueous regenerative processes for the removal of SO.sub.2 from SO.sub.2 -containing gas streams which have a scrubbing system containing (1) a scrubbing zone through which a recirculating stream of sodium, potassium or ammonium thiosulfate solution continuously passes as a vehicle for the SO.sub.2 absorbent--sodium, potassium, or ammonium carbonate--under conditions favorable to the formation of sulfite by the reaction of carbonate and SO.sub.2 and (2) a thiosulfate generation zone in which the sulfite is converted by sulfide to thiosulfate. The improvement comprises converting in a regenerating system, the net make of thiosulfate to sulfide and carbonate by converting one portion of the thiosulfate to formate and the reacting the other portion with said formate. |
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