Bio-oil fractionation and condensation

Brown, Robert C.; Jones, Samuel T.; Pollard, Anthony

Title: Bio-oil fractionation and condensation

Patent · Tue Apr 04 00:00:00 EDT 2017

OSTI ID:1349728

Brown, Robert C.; Jones, Samuel T.; Pollard, Anthony

The present invention relates to a method of fractionating bio-oil vapors which involves providing bio-oil vapors comprising bio-oil constituents. The bio-oil vapors are cooled in a first stage which comprises a condenser having passages for the bio-oil separated by a heat conducting wall from passages for a coolant. The coolant in the condenser of the first stage is maintained at a substantially constant temperature, set at a temperature in the range of 75 to 100.degree. C., to condense a first liquid fraction of liquefied bio-oil constituents in the condenser of the first stage. The first liquid fraction of liquified bio-oil constituents from the condenser in the first stage is collected. Also disclosed are steps for subsequently recovering further liquid fractions of liquefied bio-oil constituents. Particular compositions of bio-oil condensation products are also described.

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Research Organization:: Iowa State University Research Foundation, Inc. Ames, IA (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: FG36-07GO87003

Assignee:: Iowa State University Research Foundation, Inc.

Patent Number(s):: 9,611,439

Application Number:: 13/905,112

OSTI ID:: 1349728

Resource Relation:: Patent File Date: 2013 May 29

Country of Publication:: United States

Language:: English

References (21)

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