Skip to Content
Find More Like This
Return to Search

Method of increasing anhydrosugars, pyroligneous fractions and esterified bio-oil

United States Patent

December 30, 2014
View the Complete Patent at the US Patent & Trademark Office
The device and method are provided to increase anhydrosugars yield during pyrolysis of biomass. This increase is achieved by injection of a liquid or gas into the vapor stream of any pyrolysis reactor prior to the reactor condensers. A second feature of our technology is the utilization of sonication, microwave excitation, or shear mixing of the biomass to increase the acid catalyst rate for demineralization or removal of hemicellulose prior to pyrolysis. The increased reactivity of these treatments reduces reaction time as well as the required amount of catalyst to less than half of that otherwise required. A fractional condensation system employed by our pyrolysis reactor is another feature of our technology. This system condenses bio-oil pyrolysis vapors to various desired fractions by differential temperature manipulation of individual condensers comprising a condenser chain.
Steele; Philip H. (Starkville, MS), Yu; Fei (Starkville, MS), Li; Qi (Starkville, MS), Mitchell; Brian (Starkville, MS)
12/ 896,797
October 1, 2010
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made with Government support under DE-FG36-06GO86025 awarded by the U.S. Department of Energy. The Government has certain rights in the invention.