Chemistry of inorganic compounds – Sulfur or compound thereof – Elemental sulfur
Patent
1991-05-24
1992-08-18
Russel, Jeffrey E.
Chemistry of inorganic compounds
Sulfur or compound thereof
Elemental sulfur
422160, 431 9, C01B 1704, F23C 906, F23D 1432
Patent
active
051397650
ABSTRACT:
A sulfur recovery process wherein a minor fraction of a hydrogen sulfide-containing gas is precombusted with oxygen in an externally cooled combustion zone while extracting the major fraction of the heat released in the substantially complete combustion of hydrogen sulfide to sulfur dioxide in that zone, the gas is further cooled and is then passed to a Claus reaction furnace together with the major fraction of the gas, enabling using oxygen for a substantial productivity increase within the temperature and flow rate limitations of a Claus plant without need for a temperature moderator introduced into the precombustor.
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Ktorides Stanley
Russel Jeffrey E.
Union Carbide Industrial Gases Technology Corporation
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