The Boc Group, Inc.

John J Grob

Theodore A Gens

Mit S Tucker

An improved process for sulfur recovery from a gaseous feed comprising hydrogen sulfide is disclosed. The gaseous feed is admixed with concentrated oxygen in a burner, where the hydrogen sulfide is partially converted to vaporous sulfur. The effluent from the burner is passed through a boiler, in which the temperature of the reaction mixture is reduced and steam co-generated. The effluent from the boiler is subsequently passed to a sulfur condensor, for recovering liquid sulfur, and then to a water condensor. The uncondensed gas is recycled to the burner. A portion of this gas is withdrawn from the recycle loop, pressurized, and routed to a scrubbing tower, where the residual sulfur compounds are further reacted and the gas cleaned. Condensate from the water condenser is also pumped into the scrubbing tower, where residual sulfur compounds are reacted and sulfur removed.

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Livingston, NJ, United States of America

John J Grob