Method and apparatus for recovering a solvent
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Mar 23, 2004
Grant Date -
N/A
app pub date -
Sep 5, 2000
filing date -
Sep 6, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In a closed-loop biomass extraction apparatus (10), strategies for purifying HFC solvents used therein include: (i) contacting an adsorbent and a desiccant, e.g. in a container (26) with contaminated HFC solvent branched from the main flow loop; and, optionally, (ii) washing contaminated HFC solvent with water, e.g. in a vessel (34) to separate a co-solvent or entrainer, such as ethanol, thereform.
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