Chemistry of inorganic compounds – Sulfur or compound thereof – Elemental sulfur
Patent
1984-12-04
1986-04-01
Doll, John
Chemistry of inorganic compounds
Sulfur or compound thereof
Elemental sulfur
423221, 423514, B01D 5334, C01B 1705, C01B 1764
Patent
active
045797277
ABSTRACT:
A process for recovering elemental sulfur from a hydrogen sulfide containing gas stream by reacting the hydrogen sulfide in the gas stream with a buffered aqueous solution enriched in thiosulfate ions at an initial pH between about 4.5 and 6.5 for residence time to sufficiently react a portion of the hydrogen sulfide to elemental sulfur. The elemental sulfur is then removed and the solution now lean in thiosulfate ions is regenerated by the oxidation of the remaining hydrogen sulfide in the gas stream to deplete the hydrogen sulfide from the gas stream and to regenerate the liquid solution for recycling to the reduction zone.
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Cronkright Walter A.
Schlossman Maury I.
Solbakken Aaage
Van Dijk Christiaan P.
Doll John
Russel Jeffrey E.
The M. W. Kellogg Company
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