Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Sulfur or sulfur containing component
Patent
1994-03-04
1996-04-30
Straub, Gary P.
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Sulfur or sulfur containing component
42324404, 42324410, 42324411, 423230, 4235731, 423576, 4235768, B01D 5348, B01D 5386
Patent
active
055122604
ABSTRACT:
A process for reducing sulfur content in a gaseous stream with the production of elemental sulfur by first treating the gaseous steam with hydrogenation and hydrolysis to convert substantially all of the sulfur components therein to hydrogen sulfide. Then reducing the water content of the gaseous stream to optimize chemical equilibrium. Thereafter, the gaseous steam is contacted in an oxidation reactor with an acid catalyst at a temperature of about 150.degree. C. to about 350.degree. C. to convert hydrogen sulfide to elemental sulfur. The product gas leaving the oxidation reactor is cooled to separate elemental sulfur by condensation. The acid catalyst is a shape selective zeolite, a metal-exchanged or impregnated alumina, or a mixture thereof. The alumina is gamma phase alumina impregnated with from about 0.2 wt % to about 2.0 wt % metal.
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Kiliany Thomas R.
McWilliams John P.
Pappal David A.
Harris G. L.
McKillop A. J.
Mobil Oil Corporation
Santini D. P.
Straub Gary P.
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