Dilute acid/metal salt hydrolysis of lignocellulosics
Abstract
A modified dilute acid method of hydrolyzing the cellulose and hemicellulose in lignocellulosic material under conditions to obtain higher overall fermentable sugar yields than is obtainable using dilute acid alone, comprising: impregnating a lignocellulosic feedstock with a mixture of an amount of aqueous solution of a dilute acid catalyst and a metal salt catalyst sufficient to provide higher overall fermentable sugar yields than is obtainable when hydrolyzing with dilute acid alone; loading the impregnated lignocellulosic feedstock into a reactor and heating for a sufficient period of time to hydrolyze substantially all of the hemicellulose and greater than 45% of the cellulose to water soluble sugars; and recovering the water soluble sugars.
- Inventors:
-
- Golden, CO
- Lakewood, CO
- Issue Date:
- Research Org.:
- Midwest Research Institute, Kansas City, MO (United States)
- OSTI Identifier:
- 874609
- Patent Number(s):
- 6423145
- Assignee:
- Midwest Research Institute (Kansas City, MO)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C12 - BIOCHEMISTRY C12P - FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE {
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:
- AC36-99GO10337
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- dilute; acidmetal; salt; hydrolysis; lignocellulosics; modified; acid; method; hydrolyzing; cellulose; hemicellulose; lignocellulosic; material; conditions; obtain; overall; fermentable; sugar; yields; obtainable; comprising; impregnating; feedstock; mixture; amount; aqueous; solution; catalyst; metal; sufficient; provide; loading; impregnated; reactor; heating; period; time; hydrolyze; substantially; 45; water; soluble; sugars; recovering; aqueous solution; metal salt; sufficient period; lignocellulosic material; /127/106/
Citation Formats
Nguyen, Quang A, and Tucker, Melvin P. Dilute acid/metal salt hydrolysis of lignocellulosics. United States: N. p., 2002.
Web.
Nguyen, Quang A, & Tucker, Melvin P. Dilute acid/metal salt hydrolysis of lignocellulosics. United States.
Nguyen, Quang A, and Tucker, Melvin P. Tue .
"Dilute acid/metal salt hydrolysis of lignocellulosics". United States. https://www.osti.gov/servlets/purl/874609.
@article{osti_874609,
title = {Dilute acid/metal salt hydrolysis of lignocellulosics},
author = {Nguyen, Quang A and Tucker, Melvin P},
abstractNote = {A modified dilute acid method of hydrolyzing the cellulose and hemicellulose in lignocellulosic material under conditions to obtain higher overall fermentable sugar yields than is obtainable using dilute acid alone, comprising: impregnating a lignocellulosic feedstock with a mixture of an amount of aqueous solution of a dilute acid catalyst and a metal salt catalyst sufficient to provide higher overall fermentable sugar yields than is obtainable when hydrolyzing with dilute acid alone; loading the impregnated lignocellulosic feedstock into a reactor and heating for a sufficient period of time to hydrolyze substantially all of the hemicellulose and greater than 45% of the cellulose to water soluble sugars; and recovering the water soluble sugars.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2002},
month = {1}
}