A Fresh Look at the Kinetics of Pentosan Removal from Lignocellulosic Biomass
American Journal of Chemical Engineering
Volume 4, Issue 6, November 2016, Pages: 161-169
Received: Oct. 4, 2016; Accepted: Oct. 13, 2016; Published: Jan. 7, 2017
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Surendra Pratap Yadav, Department of Polymer & Process Engg., Indian Institute of Technology Roorkee, Roorkee, India
Uttam Kumar Ghosh, Department of Polymer & Process Engg., Indian Institute of Technology Roorkee, Roorkee, India
Amiya Kumar Ray, Department of Polymer & Process Engg., Indian Institute of Technology Roorkee, Roorkee, India
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The effect of time, temperature and concentration of prehydrolyzing agent on the biomass prehydrolysis have been studied for pentosan removal. Basic kinetic parameters i.e. rate constant, order of reaction, energy of activation and frequency factor were calculated. This study on the kinetics of pentosan removal reveals that the rate of pentosan removal does not follow exactly first order kinetics and shifting of order is observed during the reaction. In searching for a kinetic equation for pentosan removal, it was found that the data was well fitted by an order at higher concentration and by another order at lower concentration of prehydrolyzing agent. The order of reaction of pentosan removal lies between 0.8 to 1.40. A regression model was developed for % pentosan removal relating to temperature and time for water prehydrolysis at higher temperatures. This model was well fitted by data given in literature.
Hemicelluloses, Pentosan, Prehydrolysis, Arrhenius, Reaction Order
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Surendra Pratap Yadav, Uttam Kumar Ghosh, Amiya Kumar Ray, A Fresh Look at the Kinetics of Pentosan Removal from Lignocellulosic Biomass, American Journal of Chemical Engineering. Vol. 4, No. 6, 2016, pp. 161-169. doi: 10.11648/j.ajche.20160406.14
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