Methods of hydrolyzing pretreated densified biomass particulates and systems related thereto
First Claim
Patent Images
1. A method comprising:
- enzymatically 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 containing lignin and/or hemicellulose to a pretreatment to cause at least a portion of the lignin and/or hemicellulose in said biomass fibers to move to an outer surface to produce a quantity of pretreated tacky plant biomass fibers; and
densifying said pretreated tacky plant biomass fibers to produce the one or more hydrolysable densified biomass particulates, wherein said densified plant biomass fibers are densified without using added binder.
3 Assignments
0 Petitions
Accused Products
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 to an entire suite of other useful bioproducts.
131 Citations
30 Claims
-
1. A method comprising:
-
enzymatically 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 containing lignin and/or hemicellulose to a pretreatment to cause at least a portion of the lignin and/or hemicellulose in said biomass fibers to move to an outer surface to produce a quantity of pretreated tacky plant biomass fibers; and densifying said pretreated tacky plant biomass fibers to produce the one or more hydrolysable densified biomass particulates, wherein said densified plant biomass fibers are densified without using added binder. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 18, 19, 22, 23, 27, 28)
-
-
11. A system comprising:
-
a hydrolyzing facility for enzymatically 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 containing lignin and/or hemicellulose to a pretreatment to cause at least a portion of the lignin and/or hemicellulose in said biomass fibers to move to an outer surface to produce a quantity of pretreated tacky plant biomass fibers; and densifying said pretreated tacky plant biomass fibers to produce the one or more hydrolysable densified biomass particulates wherein said densified plant biomass fibers are densified without using added binder. - View Dependent Claims (12, 13, 14, 15, 16, 17, 24, 25, 26, 29, 30)
-
-
20. A method comprising:
-
subjecting a quantity of plant biomass fibers containing lignin and/or hemicellulose to a pretreatment to cause at least a portion of the lignin and/or hemicellulose in said biomass to move to an outer surface to produce a quantity of pretreated tacky plant biomass fibers; densifying said 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; and enzymatically hydrolyzing the one or more hydrolysable densified biomass particulates to produce a convertible sugar-containing stream, wherein, the subjecting, densifying and enzymatically hydrolyzing steps are performed as an integrated process at a single location.
-
-
21. A method comprising:
-
providing a hydrolysable densified biomass particulate or a plurality thereof, the hydrolysable densified biomass particulate or particulates each comprising a plurality of plant biomass fibers containing lignin and/or hemicellulose at an outer surface of the fibers, wherein the hydrolysable densified biomass particulate or particulates are in a compressed particulate form and are free from added binder; and hydrolyzing the hydrolysable densified biomass particulate or plurality thereof to produce a convertible sugar-containing stream.
-
Specification