Chemistry of inorganic compounds – Sulfur or compound thereof – Oxygen containing
Patent
1975-02-25
1977-09-06
Vertiz, O. R.
Chemistry of inorganic compounds
Sulfur or compound thereof
Oxygen containing
55 73, 423539, C01B 1754, C01B 1748, B01D 4702
Patent
active
040468674
ABSTRACT:
Improvement in the method for making a sulfur dioxide-containing gas stream of low elemental sulfur content by contacting a stream of oxygen-containing gas with elemental sulfur maintained above its auto-ignition temperature to generate a gas stream containing sulfur dioxide and gaseous elemental sulfur, followed by contacting this gas stream with liquid elemental sulfur maintained below its auto-ignition temperature, which improvement involves subsequently scrubbing the gas stream in a confined area with water or an aqueous medium, preferably containing small amounts of ammonia, under conditions of turbulent flow to obtain a sulfur dioxide-containing gas stream substantially free of oxygen and sulfur trioxide and containing less than about 0.0002 lb. of sulfur per cubic foot of gas, measured at standard conditions.
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Bean Samuel L.
Seeling Philip F.
Allied Chemical Corporation
Fuchs Gerhard H,.
Rooney Gerard P.
Straub Gary P.
Vertiz O. R.
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