System and process for capture of H.sub.2S from gaseous process streams and process for regeneration of the capture agent

Heldenbrant, David J; Koech, Phillip K; Rainbolt, James E; Bearden, Mark D; Zheng, Feng

System and process for capture of H.sub.2S from gaseous process streams and process for regeneration of the capture agent

Patent · 17 February 2014

OSTI ID:1124999

Heldenbrant, David J; Koech, Phillip K; Rainbolt, James E; Bearden, Mark D; Zheng, Feng

A system and process are disclosed for selective removal and recovery of H.sub.2S from a gaseous volume, e.g., from natural gas. Anhydrous organic, sorbents chemically capture H.sub.2S gas to form hydrosulfide salts. Regeneration of the capture solvent involves addition of an anti-solvent that releases the captured H.sub.2S gas from the capture sorbent. The capture sorbent and anti-solvent are reactivated for reuse, e.g., by simple distillation.

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Research Organization:: PNNL (Pacific Northwest National Laboratory (PNNL), Richland, WA (United States))

Sponsoring Organization:: USDOE

DOE Contract Number:: AC05-76RL01830

Assignee:: Battelle Memorial Institute (Richland, WA)

Patent Number(s):: 8,652,237

Application Number:: 12/972,125

OSTI ID:: 1124999

Country of Publication:: United States

Language:: English

References (14)

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