Mixed super critical fluid hydrolysis and alcoholysis of cellulose to form glucose and glucose derivatives

摘要

The present invention relates to a process for generating glucose and glucose derivatives from the direct contacting of cellulose, hemicelluloses and/or polysaccharides with a mixed super critical fluid system of alcohol and water whereby the partial pressure of the system provides for both alcoholysis and hydrolysis of the material to generate primarily glucose, and glucose derivatives.

主权项

1. A method for making a glucose, the method comprising:
(a) (i) combining a feedstock with an alcohol and water, wherein the feedstock comprises a cellulosic material, a protein, or both a cellulosic material and a protein; or
(ii) combining a feedstock with an alcohol and water, wherein the feedstock comprises a cellulosic material, a hemicellulose-comprising material, or both a cellulosic material and a hemicellulose-comprising material; (b) reacting the feedstock and the alcohol and water at a temperature in the range of between about 140° C. to 350° C., and at a pressure in a range of between about 500 psig to 3200 psig to cleave the cellulosic material to generate a product comprising an alkyl glucoside; and (c) hydrolyzing the alkyl glucoside using a weak acid and additional water, wherein the resulting mixture comprises a glucose and an alcohol.