Systems and Methods for Degassing of Sulfur

摘要

Contemplated systems and methods for removing polysulfides and hydrogen sulfide from liquid sulfur of a Claus plant include (a) physically separated steps of catalytic decomposition of polysulfides and gas stripping, or (b) use of the stripping gas as the continuous phase in a packed column with decomposition catalyst to so avoid catalyst attrition.

主权项

1. A method of treating liquid sulfur containing polysulfides and hydrogen sulfide, comprising:
contacting the liquid sulfur with a decomposition catalyst under conditions effective to convert polysulfides to hydrogen sulfide to thereby generate a hydrogen sulfide enriched liquid sulfur stream; and stripping the hydrogen sulfide enriched liquid sulfur stream with a stripping gas to so generate an acid gas stream and a liquid sulfur product stream.