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Ethanol production with dilute acid hydrolysis using partially dried lignocellulosics

United States Patent

December 9, 2003
View the Complete Patent at the US Patent & Trademark Office
National Renewable Energy Laboratory - Visit the NREL Technology Transfer Website
Pretreatment Methods for Biomass Conversion into Biofuels and Biopolymers
A process of converting lignocellulosic biomass to ethanol, comprising hydrolyzing lignocellulosic materials by subjecting dried lignocellulosic material in a reactor to a catalyst comprised of a dilute solution of a strong acid and a metal salt to lower the activation energy (i.e., the temperature) of cellulose hydrolysis and ultimately obtain higher sugar yields.
Nguyen; Quang A. (Chesterfield, MO), Keller; Fred A. (Lakewood, CO), Tucker; Melvin P. (Lakewood, CO)
Midwest Research Institute (Kansas City, MO)
10/ 344,091
February 7, 2003
CONTRACTUAL ORIGIN OF THE INVENTION The United States Government has rights to this invention pursuant to Contract No. DE-AC36-99GO-10337 between the United States Department of Energy and the Midwest Research Institute.