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Title: Progressing batch hydrolysis process

Abstract

A progressive batch hydrolysis process for producing sugar from a lignocellulosic feedstock, comprising passing a stream of dilute acid serially through a plurality of percolation hydrolysis reactors charged with said feedstock, at a flow rate, temperature and pressure sufficient to substantially convert all the cellulose component of the feedstock to glucose; cooling said dilute acid stream containing glucose, after exiting the last percolation hydrolysis reactor, then feeding said dilute acid stream serially through a plurality of prehydrolysis percolation reactors, charged with said feedstock, at a flow rate, temperature and pressure sufficient to substantially convert all the hemicellulose component of said feedstock to glucose; and cooling the dilute acid stream containing glucose after it exits the last prehydrolysis reactor.

Inventors:
 [1]
  1. Denver, CO
Issue Date:
Research Org.:
Midwest Research Institute, Kansas City, MO (United States)
OSTI Identifier:
866004
Patent Number(s):
4615742
Assignee:
United States of America as represented by Department of Energy (Washington, DC)
Patent Classifications (CPCs):
C - CHEMISTRY C13 - SUGAR INDUSTRY C13K - SACCHARIDES, OTHER THAN SUCROSE, OBTAINED FROM NATURAL SOURCES OR BY HYDROLYSIS OF NATURALLY OCCURRING DI-, OLIGO- OR POLYSACCHARIDES
DOE Contract Number:  
AC02-83CH10093
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
progressing; batch; hydrolysis; process; progressive; producing; sugar; lignocellulosic; feedstock; comprising; passing; stream; dilute; acid; serially; plurality; percolation; reactors; charged; flow; rate; temperature; pressure; sufficient; substantially; convert; cellulose; component; glucose; cooling; containing; exiting; reactor; feeding; prehydrolysis; hemicellulose; exits; flow rate; stream containing; dilute acid; pressure sufficient; hydrolysis process; sic feed; batch hydrolysis; /127/

Citation Formats

Wright, John D. Progressing batch hydrolysis process. United States: N. p., 1986. Web.
Wright, John D. Progressing batch hydrolysis process. United States.
Wright, John D. Wed . "Progressing batch hydrolysis process". United States. https://www.osti.gov/servlets/purl/866004.
@article{osti_866004,
title = {Progressing batch hydrolysis process},
author = {Wright, John D},
abstractNote = {A progressive batch hydrolysis process for producing sugar from a lignocellulosic feedstock, comprising passing a stream of dilute acid serially through a plurality of percolation hydrolysis reactors charged with said feedstock, at a flow rate, temperature and pressure sufficient to substantially convert all the cellulose component of the feedstock to glucose; cooling said dilute acid stream containing glucose, after exiting the last percolation hydrolysis reactor, then feeding said dilute acid stream serially through a plurality of prehydrolysis percolation reactors, charged with said feedstock, at a flow rate, temperature and pressure sufficient to substantially convert all the hemicellulose component of said feedstock to glucose; and cooling the dilute acid stream containing glucose after it exits the last prehydrolysis reactor.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1986},
month = {1}
}

Patent:

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