Methods and systems for selectively separating CO2 from a multicomponent gaseous stream
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United States of America Patent
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Sep 28, 2004
Grant Date -
Jul 1, 2004
app pub date -
Dec 27, 2002
filing date -
Dec 27, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Methods are provided for the selective removal of CO.sub.2 from a multicomponent gaseous stream to provide a CO.sub.2 depleted gaseous stream. In practicing the subject methods, an initial multicomponent gaseous stream that includes a gaseous CO.sub.2 hydrate promoter is contacted with an aqueous fluid, e.g., CO.sub.2 nucleated water, in a hydrate formation reactor under conditions of selective CO.sub.2 clathrate formation to produce a CO.sub.2 clathrate slurry and CO.sub.2 depleted gaseous stream. Also provided are systems that find use in practicing the subject methods. The subject methods and systems find use in a variety of applications where it is desired to selectively remove CO.sub.2 from a multicomponent gaseous stream.
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