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US 8,945,245 B2Granted
Methods of hydrolyzing pretreated densified biomass particulates and systems related thereto
AssigneesMichigan Biotechnology Institute, Board of Trustees of Michigan State University
InventorsBryan Bals, Farzaneh Teymouri, Tim Campbell, Bruce Dale
Life of this patent
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Abstract
A method is provided in which pretreated and densified cellulosic biomass particulates can be hydrolyzed at a high solids loading rate as compared with the solids loading rate of loose hydrolysable cellulosic biomass fibers. The resulting high concentration sugar-containing stream can be easily converted to biofuels or an entire suite of other useful bioproducts.
Claims23
A method comprising:
- hydrolyzing one or more hydrolysable densified biomass particulates to produce a convertible sugar-containing stream, wherein said densified biomass particulates are produced by:
- subjecting a quantity of plant biomass fibers to a pretreatment to cause at least a portion of lignin and/or hemicellulose contained within each fiber to move to an outer surface of said fiber to produce a quantity of pretreated tacky plant biomass fibers;
- and
- densifying the quantity of pretreated tacky plant biomass fibers to produce the one or more hydrolysable densified biomass particulates wherein said biomass fibers is densified without using added binder.
1 more element
A system comprising:
- a hydrolyzing facility for hydrolyzing one or more hydrolysable densified biomass particulates to produce a convertible sugar-containing stream, wherein said densified biomass particulates are produced by:
- subjecting a quantity of plant biomass fibers to a pretreatment to cause at least a portion of lignin and/or hemicellulose contained within each fiber to move to an outer surface of said fiber to produce a quantity of pretreated tacky plant biomass fibers;
- and
- densifying the quantity of pretreated tacky plant biomass fibers to produce the one or more hydrolysable densified biomass particulates wherein said biomass fibers is densified without using added binder.
1 more element
Dependencies are inferred from the claim text.