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Title: Flow-through pretreatment of lignocellulosic biomass with inorganic nanoporous membranes

Patent ·
OSTI ID:1433319

A process for the pretreatment of lignocellulosic biomass is provided. The process generally includes flowing water through a pretreatment reactor containing a bed of particulate ligno-cellulosic biomass to produce a pressurized, high-temperature hydrolyzate exit stream, separating solubilized compounds from the hydrolyzate exit stream using an inorganic nanoporous membrane element, fractionating the retentate enriched in solubilized organic components and recycling the permeate to the pretreatment reactor. The pretreatment process provides solubilized organics in concentrated form for the subsequent conversion into biofuels and other chemicals.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-000R22725
Assignee:
UT-Battelle, LLC (Oak Ridge, TN)
Patent Number(s):
9,932,648
Application Number:
14/354,230
OSTI ID:
1433319
Resource Relation:
Patent File Date: 2012 Oct 10
Country of Publication:
United States
Language:
English

References (15)

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Separation of water-soluble organic electrolytes patent July 1991
Filtering method patent January 2006
Element provided with a fibrin layer, preparation and use thereof patent June 2007
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Filter body patent-application June 2004
Ceramic membrane water filtration patent-application August 2006
Treatment Systems and Processes for Lignocellulosic Substrates that Contain Soluble Carbohydrates patent-application March 2009
Separation Process patent-application October 2009
Methods of Making Inorganic Membranes patent-application March 2010
Method and Apparatus for the Purification and Analytical Evaluation of Highly Purified Liquids patent-application February 2011
Membrane Separation of a Mixture of Close Boiling Hydrocarbon Components patent-application March 2011
Methods of and Systems for Producing Biofuels patent-application August 2011
Structure For Molecular Separations patent-application November 2011
Method for Production of Fermentable Sugars from Biomass patent-application May 2012

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