ENZYMATIC TREATMENT OF LIGNOCELLULOSIC MATERIALS
First Claim
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1. A method for treating a lignocellulosic feedstock comprising cellulose, hemicellulose and lignin to produce a sugar rich process stream, the method comprising:
- a) subjecting the feedstock to a first enzymatic hydrolysis process using a first enzyme preparation and obtaining a volatile component stream and a low viscosity effluent stream;
b) subjecting the low viscosity effluent stream to a second enzymatic hydrolysis process using a second enzyme preparation and obtaining a sugar rich process stream.
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Abstract
A method for treating plant materials to release fermentable sugars is disclosed. More specifically, a two-stage enzymatic hydrolysis process for treating lignocellulosic materials and producing a sugar rich process stream that may subsequently be subjected to fermentation to produce biofuels and chemicals is disclosed.
56 Citations
33 Claims
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1. A method for treating a lignocellulosic feedstock comprising cellulose, hemicellulose and lignin to produce a sugar rich process stream, the method comprising:
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a) subjecting the feedstock to a first enzymatic hydrolysis process using a first enzyme preparation and obtaining a volatile component stream and a low viscosity effluent stream; b) subjecting the low viscosity effluent stream to a second enzymatic hydrolysis process using a second enzyme preparation and obtaining a sugar rich process stream. - 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)
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Specification