PROCESS FOR DEGASSING CONDENSED SULFUR FROM A CLAUS SULFUR RECOVERY SYSTEM

摘要

A process of producing degassed liquid sulfur using process gas containing H2S to agitate the liquid sulfur being degassed while in contact with a degassing catalyst. Process gas is less costly and less complicated and quickly accomplishes substantial degassing rendering the liquid sulfur much safer in storage and transportation.

主权项

1. A process for producing liquid sulfur that is degassed of H2S, wherein the process comprises:
a) providing a sulfur degassing catalyst and liquid sulfur into a vessel wherein the sulfur degassing catalyst and liquid sulfur define a contact zone; b) directing condensed products from a Claus plant into the contact zone of the vessel wherein the condensed products include elemental sulfur, dissolved H2S and H2Sx where x≧2; c) catalyzing the conversion of H2Sx on the surface of the sulfur degassing catalyst to form H2S and elemental sulfur; d) directing a process gas from the Claus plant at an elevated pressure into the contact zone of the vessel to agitate the sulfur degassing catalyst and liquid sulfur and carry H2S that has formed on the surface of the sulfur degassing catalyst away from the sulfur degassing catalyst; wherein the process gas includes H2S; e) exhausting the processes gases along with H2S from the contact zone for further processing in the Claus plant; and f) extracting liquid sulfur that is degassed of H2S from the contact zone.