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

Patent ·
OSTI ID:1124999
; ; ; ;

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.

Research Organization:
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
Resource Relation:
Patent File Date: 2010 Dec 17
Country of Publication:
United States
Language:
English

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Cited By (2)

System and process for polarity swing assisted regeneration of gas selective capture liquids patent July 2017
Methods for treating a liquid using draw solutions patent July 2016

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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY