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Catalytic biomass pyrolysis process

United States Patent

9,944,857
April 17, 2018
View the Complete Patent at the US Patent & Trademark Office
Described herein are processes for converting a biomass starting material (such as lignocellulosic materials) into a low oxygen containing, stable liquid intermediate that can be refined to make liquid hydrocarbon fuels. More specifically, the process can be a catalytic biomass pyrolysis process wherein an oxygen removing catalyst is employed in the reactor while the biomass is subjected to pyrolysis conditions. The stream exiting the pyrolysis reactor comprises bio-oil having a low oxygen content, and such stream may be subjected to further steps, such as separation and/or condensation to isolate the bio-oil.
Dayton; David C. (Chapel Hill, NC), Gupta; Raghubir P. (Durham, NC), Turk; Brian S. (Durham, NC), Kataria; Atish (Durham, NC), Shen; Jian-Ping (Chapel Hill, NC)
Research Triangle Institute (Research Triangle Park, NC)
14/ 382,822
March 6, 2013
GOVERNMENT LICENSE RIGHTS This invention was made with government support under Grant No. DE-AR0000021 awarded by the U.S. Department of Energy/Advanced Research Projects Agency-Energy (DOE/ARPA-E). The government has certain rights in the invention.