Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Sulfur or sulfur containing component
Reexamination Certificate
2007-03-13
2007-03-13
Cooke, Colleen P. (Department: 1754)
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Sulfur or sulfur containing component
C422S170000
Reexamination Certificate
active
10884260
ABSTRACT:
A method of scrubbing lower mass sulfides with a sulfide scrubbing medium capable of regeneration. The sequential order of gas flow through three vessels is altered. A first of the three vessels is maintained in a scrubbing mode, scrubbing to breakthrough sulphur from the gas that passes through it. A second of the three vessels is maintained in a conditioning mode. Sulfide scrubbing medium in the vessel removes any residue of sulphur from the gas while being conditioned by such limited exposure to sulphur. A third of the three vessels is maintained in a regeneration mode. Saturated sulfide scrubbing medium in the vessel removes excess oxygen from the gas while being regenerated by such exposure to oxygen.
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Full English translation of JP 2003-144836, published May 2003.
“Direct Oxidation Technology & Process Unveiled for Large-Scale 1 to 50 Ton Per Day Sulfur Removal.” Excerpt on Sulfa Treat taken from Hydrocarbon Processing Journal, as early as May 17, 2004.
SulfaTreat XLP, Product Bulletin, as early as Dec. 31, 2002.
Cooke Colleen P.
Davis & Bujold & Daniels, P.L.L.C.
Wartalowicz Paul
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