Premium
Kinetic studies of corn stover saccharification using sulphuric acid
Author(s) -
Bhandari Nandan,
Macdonald Douglas G.,
Bakhshi Narendra N.
Publication year - 1984
Publication title -
biotechnology and bioengineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.136
H-Index - 189
eISSN - 1097-0290
pISSN - 0006-3592
DOI - 10.1002/bit.260260405
Subject(s) - hemicellulose , corn stover , hydrolysis , cellulose , chemistry , kinetics , acid hydrolysis , chromatography , organic chemistry , order of reaction , sulfuric acid , stover , raw material , reaction rate constant , agronomy , physics , quantum mechanics , crop , biology
The kinetics of crystalline cellulose and hemicellulose hydrolysis in corn stover were studied with a nonisothermal technique. Reactions were arrested at temperatures between 160 and 240°C and product sugars were analyzed using a Bio‐Rad HPX‐85 liquid chromatographic column. A simple first‐order series reaction model was used for both cellulose and hemicellulose hydrolysis reactions. Kinetic parameters were obtained for three different sulphuric acid concentrations (0.49, 0.92, and 1.47 wt %). Activation energies remained constant over this acid concentration range but the preexponential factors showed an increase with acid concentration. Relationships were obtained between the preexponential factors and acid concentrations. Cellulose hydrolysis and glucose degradation reactions were observed to be of higher order with respect to acid concentration in comparison with the previous studies with other raw materials.