Chemical apparatus and process disinfecting – deodorizing – preser – Chemical reactor – Including external recycle loop
Reexamination Certificate
2005-03-29
2005-03-29
Stoner, Kiley S. (Department: 1725)
Chemical apparatus and process disinfecting, deodorizing, preser
Chemical reactor
Including external recycle loop
C422S198000, C422S211000
Reexamination Certificate
active
06872367
ABSTRACT:
A method for processing a gas containing at least hydrogen sulfide (H2S) and at least sulfur dioxide (SO2), includes the following stages: contacting the gas with a liquid solvent containing at least one catalyst in a contacting stage, recovering a gaseous effluent substantially containing no hydrogen sulfide and no sulfur dioxide, and a mixture containing liquid sulfur, liquid solvent and solid by-products resulting from the degradation of the catalyst, separating the liquid sulfur from the liquid solvent in a decantation zone, extracting a liquid fraction F containing at least the solid by-products from a layer between the liquid solvent and the liquid sulfur in the decantation zone, sending the liquid fraction F to a processing stage distinct from the contacting stage, and recovering at least a stream F1comprising most of the solid by-products and a stream F2mostly comprising solvent nearly free of the solid by-products from the processing stage.
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Barrere-Tricca Cecile
Benayoun Daniel
Lecomte Fabrice
Streicher Christian
Antonelli Terry Stout & Kraus LLP
Institut Francais du Pe'trole
McHenry Kevin
Stoner Kiley S.
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