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Title: System and process for polarity swing assisted regeneration of gas selective capture liquids

A polarity swing-assisted regeneration (PSAR) process is disclosed for improving the efficiency of releasing gases chemically bound to switchable ionic liquids. Regeneration of the SWIL involves addition of a quantity of non-polar organic compound as an anti-solvent to destabilize the SWIL, which aids in release of the chemically bound gas. The PSAR decreases gas loading of a SWIL at a given temperature and increases the rate of gas release compared to heating in the absence of anti-solvent.
Inventors:
; ; ; ; ; ; ;
Issue Date:
OSTI Identifier:
1372056
Assignee:
BATTELLE MEMORIAL INSTITUTE PNNL
Patent Number(s):
9,707,508
Application Number:
13/224,680
Contract Number:
AC05-76RL01830
Resource Relation:
Patent File Date: 2011 Sep 02
Research Org:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Other works cited in this record:

Method of removing acidic gases from gaseous mixtures
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Capture and release of mixed acid gasses with binding organic liquids
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System and process for capture of H.sub.2S from gaseous process streams and process for regeneration of the capture agent
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