High pressure process for sulfur recovery from a hydrogen...

Details High pressure process for sulfur recovery from a hydrogen... High pressure process for sulfur recovery from a hydrogen...

C - Chemistry, Metallurgy

01

B

23/332

C01B 17/04 (2006.01)

Patent

CA 1261118

ABSTRACT OF THE DISCLOSURE This invention provides a process for recovering elemental sulfur from a gas containing hydrogen sulfide. The process comprises combusting the gas containing hydrogen sulfide in a furnace with an oxygen-containing gas to provide hydrogen sulfide and sulfur dioxide, the hydrogen sulfide and sulfur dioxide are then reacted to form a gaseous stream comprising water vapor, sulfur vapor, and other acid gas components. The gaseous stream is cooled and divided into a combined liquid water and liquid sulfur stream and a remaining process gas stream substantially free of water at a pressure greater than 50 psia such that water and sulfur are condensed concurrently and at a temperature above the sulfur melting point of approximately 248°F. Subsequently the combined liquid water and liquid sulfur stream are separated into a product liquid water stream and a product liquid sulfur stream. The process of the present invention can be operated at high pressure.

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