The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 13, 2016
Filed:
Apr. 30, 2013
Washington State University, Pullman, WA (US);
Bin Yang, Richland, WA (US);
Dhrubojyoti Dey Laskar, Richland, WA (US);
Washington State University, Pullman, WA (US);
Abstract
Provided are methods for aqueous isolation of depolymerized lignin in high yield from a lignin-containing biomass composition, comprising positioning a lignin-containing biomass composition into a flowthrough thermal reactor chamber to provide for passage of an aqueous fluid therethrough, contacting the lignin biomass composition with the aqueous fluid under elevated temperature conditions sufficient to provide for lignin release and depolymerization, flowing the aqueous fluid through the reactor chamber under the elevated temperature conditions, to provide an output aqueous fluid comprising released depolymerized lignin, and collecting the depolymerized lignin. Particular aspects further comprise hydrogenation and/or hydrodeoxygenation (HDO) of the released depolymerized lignin with a catalyst or catalyst system for deconstruction of the released depolymerized lignin into lower molecular weight reactive lignin moieties and oligomers amenable for subsequent removal of oxygen to produce hydrocarbon fuels and/or chemicals and/or compounds. Systems for practicing the methods are also provided, along with highly purified depolymerized lignin.