Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Sulfur or sulfur containing component
Reexamination Certificate
2006-07-11
2006-07-11
Silverman, Stanley S. (Department: 1754)
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Sulfur or sulfur containing component
C252S373000, C423S244020, C423S244100, C423S418200, C423S651000, C423S652000
Reexamination Certificate
active
07074375
ABSTRACT:
A hydrocarbon gas such as methane and LPG is desulfurized in the presence of oxygen and an oxidation catalyst to convert sulfur compounds in the gas to sulfur oxides. The sulfur oxides are then trapped downstream of the oxidation by an adsorbent. The amount of oxygen added to the hydrocarbon gas to promote oxidation is such that the sulfur compounds are selectively oxidized and the oxidation of the hydrocarbon gas is minimized to reduce hydrogen formation.
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Farrauto Robert J.
Hwang Shinn
Lampert Jordan K.
Shore Lawrence
Engelhard Corporation
Hertzog Ardith E.
Keller Raymond F.
Silverman Stanley S.
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