Methods of hydrolyzing pretreated densified biomass particulates and systems related thereto
First Claim
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1. 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.
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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.
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Citations
23 Claims
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1. A method comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 20, 21)
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12. A system comprising:
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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. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 22, 23)
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Specification