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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