Process for purifying lignocellulosic feedstocks

Title: Process for purifying lignocellulosic feedstocks

The present invention includes methods for removing mineral acids, mineral salts and contaminants, such as metal impurities, ash, terpenoids, stilbenes, flavonoids, proteins, and other inorganic products, from a lignocellulosic feedstock stream containing organic acids, carbohydrates, starches, polysaccharides, disaccharides, monosaccharides, sugars, sugar alcohols, phenols, cresols, and other oxygenated hydrocarbons, in a manner that maintains a portion of the organic acids and other oxygenated hydrocarbons in the product stream.

Inventors:: Gray, Matthew; Matthes, Megan; Nelson, Thomas; Held, Andrew

Issue Date:: 2018-01-09

OSTI Identifier:: 1416365

Assignee:: Virent, Inc. (Madison, WI) DOEEE

Patent Number(s):: 9,862,893

Application Number:: 13/469,906

Contract Number:: EE000304

Resource Relation:: Patent File Date: 2012 May 11

Research Org:: Virent, Inc., Madison, WI (United States)

Sponsoring Org:: USDOE

Country of Publication:: United States

Language:: English

Subject:: 09 BIOMASS FUELS

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Other works cited in this record:

Low-temperature hydrogen production from oxygenated hydrocarbons
patent, March 2004

Cortright, Randy; Dumesic, James
US Patent Document 6,699,457
URL: http://patft.uspto.gov/netacgi/nph-Parser?Sect2=PTO1&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=1&f=G&l=50&d=PALL&RefSrch=yes&Query=PN%2F6699457

Low-temperature hydrocarbon production from oxygenated hydrocarbons
patent, October 2005

Cortright, Randy; Dumesic, James
US Patent Document 6,953,873
URL: http://patft.uspto.gov/netacgi/nph-Parser?Sect2=PTO1&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=1&f=G&l=50&d=PALL&RefSrch=yes&Query=PN%2F6953873

Low-temperature hydrogen production from oxygenated hydrocarbons
patent, November 2005

Cortright, Randy; Dumesic, James
US Patent Document 6,964,757
URL: http://patft.uspto.gov/netacgi/nph-Parser?Sect2=PTO1&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=1&f=G&l=50&d=PALL&RefSrch=yes&Query=PN%2F6964757

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