Patent ID: 7485281
Filing Date: 2009-02-03
Classification: C01B,F23J,Y02P

Abstract:
1. A process for the production of sulfur from sulfur dioxide (SO 2 )-containing effluent streams, the process comprising: contacting a reducing agent with elemental sulfur at a first elevated temperature in a heater for a period of time sufficient to produce a reducing gas effluent stream comprising hydrogen sulfide (H contacting the reducing gas with a sulfur dioxide-containing stream to generate a feed gas mixture stream; contacting the feed gas mixture stream with an activated catalyst in a reaction zone at a temperature effective for the reaction between hydrogen sulfide and sulfur dioxide to generate a product gas stream comprising elemental sulfur and water; and recovering the elemental sulfur from the product gas stream, wherein the elemental sulfur is preheated to a temperature ranging from about 500° C. to about 650° C. prior to contacting the elemental sulfur with the reducing agent.