skip to main content

Title: Progressing batch hydrolysis process

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.
Authors:
 [1]
  1. (Denver, CO)
Publication Date:
OSTI Identifier:
866004
Report Number(s):
US 4615742
DOE Contract Number:
AC02-83CH10093
Resource Type:
Patent
Research Org:
MIDWEST RESEARCH INSTITUTE
Country of Publication:
United States
Language:
English
Subject:
progressing; batch; hydrolysis; process; progressive; batch; hydrolysis; process; producing; sugar; lignocellulosic; feedstock; comprising; passing; stream; dilute; acid; serially; plurality; percolation; hydrolysis; reactors; charged; feedstock; flow; rate; temperature; pressure; sufficient; substantially; convert; cellulose; component; feedstock; glucose; cooling; dilute; acid; stream; containing; glucose; exiting; percolation; hydrolysis; reactor; feeding; dilute; acid; stream; serially; plurality; prehydrolysis; percolation; reactors; charged; feedstock; flow; rate; temperature; pressure; sufficient; substantially; convert; hemicellulose; component; feedstock; glucose; cooling; dilute; acid; stream; containing; glucose; exits; prehydrolysis; reactor; flow rate; flow rate; stream containing; stream containing; dilute acid; dilute acid; dilute acid; dilute acid; pressure sufficient; pressure sufficient; hydrolysis process; hydrolysis process; sic feed; batch hydrolysis; batch hydrolysis /127/