Kinetics of thermochemical pretreatment of lignocellulosic materials

The results of an experimental study of the acid hydrolysis of hardwood are presented in the form of values for the three parameters activation energy, power on the acid concentration, and pre-exponential factor, of the first order kinetic constants for each of the following reaction participants: x...

Full description

Saved in:
Bibliographic Details
Published in:Applied biochemistry and biotechnology 1989-01, Vol.20 (1), p.63-78
Main Authors: Converse, A.O. (Dartmouth College, Hanover, NH), Kwarteng, I.K, Grethlein, H.E, Ooshima, H
Format: Article
Language:English
Subjects:
ACTIVIDAD ENZIMATICA
ACTIVITE ENZYMATIQUE
ENZYMIC ACTIVITY
GLUCANE
GLUCANO
GLUCANS
HIDROLISIS
HYDROLYSE
HYDROLYSIS
LIGNOCELLULOSE
LIGNOCELULOSA
PROPIEDADES TERMOQUIMICAS
PROPRIETE THERMOCHIMIQUE
THERMOCHEMICAL PROPERTIES
wood
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The results of an experimental study of the acid hydrolysis of hardwood are presented in the form of values for the three parameters activation energy, power on the acid concentration, and pre-exponential factor, of the first order kinetic constants for each of the following reaction participants: xylan dremaining, glucan remaining, xylose formed, and xylose decomposed. These are used as a base for a quantitative theory to predict the temperature, time, and acid concentrations needed for effective pretreatment of the substrate for subsequent enzymatic hydrolysis of the glucan. This theory is based on the assumption that successful pretreatment requires > 90% removal of the xylan, < 10% removal of the glucan, and > 80% xylose yield. This theory is compared with selected published data.
ISSN:0273-2289
1559-0291
DOI:10.1007/BF02936473