Prehydrolysis of lignocellulose

Patent · 01 January 1996

OSTI ID:870362

Torget, Robert W ^[1]; Kadam, Kiran L ^[2]; Hsu, Teh-An ^[2]; Philippidis, George P ^[3]; Wyman, Charles E ^[4]

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1. Littleton, CO
2. Golden, CO
3. Highlands Ranch, CO
4. Lakewood, CO

The invention relates to the prehydrolysis of lignocellulose by passing an acidic or alkaline solution through solid lignocellulosic particles with removal of soluble components as they are formed. The technique permits a less severe combination of pH, temperature and time than conventional prehydrolysis. Furthermore, greater extraction of both hemicellulose and lignin occurs simultaneously in the same reactor and under the same conditions.

• Research Organization: Midwest Research Institute (Kansas City, MO)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-83CH10093
• Assignee: Midwest Research Institute (Kansas City, MO)
• Patent Number(s): US 5503996
• OSTI ID: 870362
• Country of Publication: United States
• Language: English

Related Subjects

/435/999/
acidic
alkaline
alkaline solution
combination
components
conditions
conventional
conventional prehydrolysis
extraction
formed
furthermore
hemicellulose
lignin
lignin occurs
lignocellulose
lignocellulosic
lignocellulosic particles
occurs
occurs simultaneously
particles
passing
permits
ph
prehydrolysis
reactor
relates
removal
severe
severe combination
simultaneously
solid
solid lignocellulosic
soluble
soluble components
solution
technique
technique permits
temperature
time