PRODUCT AND PROCESSES FROM AN INTEGRATED FOREST BIOREFINERY

摘要

An omnibus process of pulping and bleaching lignocellulosic materials in which a charge of a lignocellulosic material is biopulped and/or water extracted prior to pulping and bleaching. The lignocellulosic material may be mechanically pulped and bleached in the presence of an enzyme that breaks lignin-carbohydrate complexes. The aqueous extract in embodiments including a water extract step is separated into acetic acid and hemicellulose sugar aqueous solutions.

主权项

1. A process of pulping lignocellulosic materials comprising:
(a) contacting a lignocellulosic materials product with water at a temperature in the range of between about 20° C. and about 200° C. and a pH in the range of between about 3 and about 6.9 for a period in the range of between about 1 minute and about 7 days, wherein an aqueous extract and extracted lignocellulosic materials are obtained; and (b) pulping said extracted lignocellulosic materials wherein individual fibers and fiber bundles are produced and have a kappa number of about 10 after about 30 minutes or less.