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Method for pretreating lignocellulosic biomass

United States Patent

August 18, 2015
View the Complete Patent at the US Patent & Trademark Office
The present invention relates to a method for pretreating lignocellulosic biomass containing alkali and/or alkaline earth metal (AAEM). The method comprises providing a lignocellulosic biomass containing AAEM; determining the amount of the AAEM present in the lignocellulosic biomass; identifying, based on said determining, the amount of a mineral acid sufficient to completely convert the AAEM in the lignocellulosic biomass to thermally-stable, catalytically-inert salts; and treating the lignocellulosic biomass with the identified amount of the mineral acid, wherein the treated lignocellulosic biomass contains thermally-stable, catalytically inert AAEM salts.
Kuzhiyil; Najeeb M. (Ames, IA), Brown; Robert C. (Ames, IA), Dalluge; Dustin Lee (Ames, IA)
Iowa State University Research Foundation, Inc. (Ames, IA)
13/ 827,769
March 14, 2013
This invention was made with government support under grant number DE-FG36-08-GO18205 awarded by United States Department of Energy. The government has certain rights in this invention.