Progressing batch hydrolysis process

Patent · Wed Jan 01 00:00:00 EST 1986

OSTI ID:866004

Wright, John D ^[1]

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1. Denver, CO

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.

• Research Organization: Midwest Research Institute, Kansas City, MO (United States)
• DOE Contract Number: AC02-83CH10093
• Assignee: United States of America as represented by Department of Energy (Washington, DC)
• Patent Number(s): US 4615742
• OSTI ID: 866004
• Country of Publication: United States
• Language: English

Related Subjects

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
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