FRACTIONATION OF LIGNOCELLULOSIC BIOMASS FOR CELLULOSIC ETHANOL AND CHEMICAL PRODUCTION

USPTO Patent Application US 2018/0258450 A1
Application Date: Sep. 13rd, 2018

ABSTRACT

A process is defined for the continuous steam pretreatment and fractionation of low lignin lignocellulosic biomass to produce a concentrated cellulose solid stream that is sensitive to enzymatic hydrolysis. Valuable...
Application Number:
15/979,768
International Classification:
C12P 7/14 (20060101); D21B 1/36 (20060101); C12P 7/10 (20060101); C13K 13/00 (20060101); D21C 3/22 (20060101); C13K 1/02 (20060101)
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CLAIMS

What is claimed is:

1. A continuous process for fractionation of lignocellulosic biomass having a lignin content of less than 12%, comprising the steps of: a) exposing the lignocellulosic biomass to steam and an acid catalyst in a reaction vessel at a preselected temperature and a preselected reaction pressure, for a preselected exposure time, and...

DESCRIPTION

CROSS REFERENCE TO RELATED APPLICATIONS

This application is a continuation of U.S. patent application Ser. No. 15/150,946 filed May 10, 2016, which is a continuation-in-part of U.S. patent application Ser. No. 13/551,087 filed Jul. 17, 2012 (abandoned), which is a continuation-in-part of U.S. patent application Ser. No. 13/460,207 filed Apr. 30, 2012 (abandoned), which is...
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