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

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.
Inventors:
; ; ; ; ; ;
Issue Date:
OSTI Identifier:
1281062
Assignee:
Battelle Memorial Institute (Richland, WA) PNNL
Patent Number(s):
9,404,063
Application Number:
14/534,010
Contract Number:
AC05-76RL01830
Resource Relation:
Patent File Date: 2014 Nov 05
Research Org:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
09 BIOMASS FUELS; 54 ENVIRONMENTAL SCIENCES

Other works cited in this record:

Process development for hydrothermal liquefaction of algae feedstocks in a continuous-flow reactor
journal, October 2013

Thermochemical biofuel production in hydrothermal media: A review of sub- and supercritical water technologies
journal, January 2008
  • Peterson, Andrew A.; Vogel, Frédéric; Lachance, Russell P.
  • Energy & Environmental Science, Vol. 1, Issue 1, p. 32-65
  • DOI: 10.1039/B810100K

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