Two-stage dilute acid prehydrolysis of biomass
Abstract
A two-stage dilute acid prehydrolysis process on xylan containing hemicellulose in biomass is effected by: treating feedstock of hemicellulosic material comprising xylan that is slow hydrolyzable and xylan that is fast hydrolyzable under predetermined low temperature conditions with a dilute acid for a residence time sufficient to hydrolyze the fast hydrolyzable xylan to xylose; removing said xylose from said fast hydrolyzable xylan and leaving a residue; and treating said residue having a slow hydrolyzable xylan with a dilute acid under predetermined high temperature conditions for a residence time required to hydrolyze said slow hydrolyzable xylan to xylose.
- Inventors:
-
- Winter Haven, FL
- Littleton, CO
- Issue Date:
- Research Org.:
- Midwest Research Institute, Kansas City, MO (United States)
- OSTI Identifier:
- 868366
- Patent Number(s):
- 5125977
- Assignee:
- United States of America as represented by United States (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:
- two-stage; dilute; acid; prehydrolysis; biomass; process; xylan; containing; hemicellulose; effected; treating; feedstock; hemicellulosic; material; comprising; slow; hydrolyzable; fast; predetermined; temperature; conditions; residence; time; sufficient; hydrolyze; xylose; removing; leaving; residue; required; cellulosic material; time required; temperature conditions; residence time; material comprising; time sufficient; dilute acid; hydrolysis process; two-stage dilute; acid prehydrolysis; /127/
Citation Formats
Grohmann, Karel, and Torget, Robert W. Two-stage dilute acid prehydrolysis of biomass. United States: N. p., 1992.
Web.
Grohmann, Karel, & Torget, Robert W. Two-stage dilute acid prehydrolysis of biomass. United States.
Grohmann, Karel, and Torget, Robert W. Wed .
"Two-stage dilute acid prehydrolysis of biomass". United States. https://www.osti.gov/servlets/purl/868366.
@article{osti_868366,
title = {Two-stage dilute acid prehydrolysis of biomass},
author = {Grohmann, Karel and Torget, Robert W},
abstractNote = {A two-stage dilute acid prehydrolysis process on xylan containing hemicellulose in biomass is effected by: treating feedstock of hemicellulosic material comprising xylan that is slow hydrolyzable and xylan that is fast hydrolyzable under predetermined low temperature conditions with a dilute acid for a residence time sufficient to hydrolyze the fast hydrolyzable xylan to xylose; removing said xylose from said fast hydrolyzable xylan and leaving a residue; and treating said residue having a slow hydrolyzable xylan with a dilute acid under predetermined high temperature conditions for a residence time required to hydrolyze said slow hydrolyzable xylan to xylose.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1992},
month = {1}
}
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