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US 4,644,060 AGranted
Supercritical ammonia treatment of lignocellulosic materials
AssigneeE. I. Du Pont de Nemours and Company
InventorYu-Chia T. Chou
Life of this patent
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Abstract
The bioavailability of polysaccharide components of lignocellulosic materials can be increased substantially by treatment with ammonia in a supercritical or near-supercritical fluid state.
Claims20
A process for improving the bioavailability of polysaccharides in lignocellulosic materials, comprising contacting the lignocellulosic materials with ammonia at a temperature from about 100.degree. C. to about 200.degree. C., at a pressure from about 6.9 MPa to about 35 MPa, and at an ammonia density from about 0.10 g per mL to about 0.45 g per mL.
Dependencies are inferred from the claim text.