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Flow-through pretreatment of lignocellulosic biomass with inorganic nanoporous membranes

United States Patent

9,932,648
April 3, 2018
View the Complete Patent at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
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.
Bhave; Ramesh R. (Knoxville, TN), Lynd; Lee (Meriden, NH), Shao; Xiongjun (White River Junction, VT)
UT-Battelle, LLC (Oak Ridge, TN)
14/ 354,230
20140318532
October 30, 2012
This invention was made with government support under Contract No. DE-AC05-000R22725 awarded by the U.S. Department of Energy. The government has certain rights in the invention.