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System and process for efficient separation of biocrudes and water in a hydrothermal liquefaction system

United States Patent

August 2, 2016
View the Complete Patent at the US Patent & Trademark Office
Pacific Northwest National Laboratory - Visit the Technology Commercialization Program Website
A system and process are described for clean separation of biocrudes and water by-products from hydrothermal liquefaction (HTL) product mixtures of organic and biomass-containing feedstocks at elevated temperatures and pressures. Inorganic compound solids are removed prior to separation of biocrude and water by-product fractions to minimize formation of emulsions that impede separation. Separation may be performed at higher temperatures that reduce heat loss and need to cool product mixtures to ambient. The present invention thus achieves separation efficiencies not achieved in conventional HTL processing.
Elliott; Douglas C. (Richland, WA), Hart; Todd R. (Kennewick, WA), Neuenschwander; Gary G. (Burbank, WA), Oyler; James R. (Salt Lake City, UT), Rotness, Jr.; Leslie J. (Kennewick, WA), Schmidt; Andrew J. (Richland, WA), Zacher; Alan H. (Pasco, WA)
Battelle Memorial Institute (Richland, WA), Genifuel Corporation (Salt Lake City, UT)
14/ 534,010
November 5, 2014
STATEMENT REGARDING RIGHTS TO INVENTION MADE UNDER FEDERALLY-SPONSORED RESEARCH AND DEVELOPMENT This invention was made with Government support under Contract DE-AC05-76RLO-1830 awarded by the U.S. Department of Energy. The Government has certain rights in the invention.