PROCESSING BIOMASS
First Claim
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1. A method of producing sugars using a screw extrusion process, the method comprising:
- hydrolyzing one or more lignocellulosic materials with cellulase while conveying the one or more lignocellulosic materials through a screw extrusion process, the one or more lignocellulosic materials having been exposed to ionizing radiation; and
discharging an extrudate from the screw extrusion process, the extrudate comprising one or more fermentable sugars released from cellulolytic hydrolysis of the one or more lignocellulosic materials.
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Abstract
Methods are provided for reducing one or more dimensions of individual pieces of biomass; treating biomass, such as size-reduced biomass; changing a molecular structure of a biomass material; and, optionally, subjecting the biomass to a primary process to form a product. The methods include processing biomass materials using a screw extrusion process, and treating the biomass material with a screw extrusion process in size-reduction and treating steps.
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Citations
54 Claims
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1. A method of producing sugars using a screw extrusion process, the method comprising:
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hydrolyzing one or more lignocellulosic materials with cellulase while conveying the one or more lignocellulosic materials through a screw extrusion process, the one or more lignocellulosic materials having been exposed to ionizing radiation; and discharging an extrudate from the screw extrusion process, the extrudate comprising one or more fermentable sugars released from cellulolytic hydrolysis of the one or more lignocellulosic materials. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54)
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Specification