INVESTIGATING THE ENDOTHERMIC NATURE OF THE REACTIONS OF HYBRID HYDROXIDE-PEROXIDE WITH LIGNIN IN CORN STOVER AND NAPIER GRASS FOR SIMPLE SUGAR PRODUCTION
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Abstract
Description
Napier grass and Corn Stover samples were collected as waste materials for sugar
production. The samples were pretreated and hydrolyzed using hydrogen peroxide and
Trichoderma ressei cellulase respectively. Chemical kinetics of the delignification process
shows that the reduction reactions of lignin during pretreatment are dependent on the nature of
raw material, temperature, concentration of the hydrogen peroxide and their activation
energies. The calculated activation energies show that the reactions of lignin in both biomasses
are though endothermic, but less energy intensive and more economically viable for Napier
grass when compared to corn Stover. Based on the results, in order to obtain higher sugar yield
from Napier grass and corn stover under the investigated conditions, both samples should be
processed at 105 0C for 96 hours using 0.3 M and 0.1M hydrogen peroxide concentrations
respectively.
Keywords
QC Physics, TP Chemical technology