Hydrothermal Pretreatment of Lignocellulosic Biomass and Kinetics

Lei, Hanwu;Cybulska, Iwona;Julson, James
(2013) Journal of Sustainable Bioenergy Systems — Vol. 03, n° 04, p. 250-259 (2013)

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Authors
  • Lei, HanwuBioproducts, Sciences and Engineering Laboratory, Department of Biological Systems Engineering, Washington State University, Richland, USA
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  • Cybulska, IwonaDepartment of Agricultural and Biosystems Engineering, South Dakota State University, Brookings, USA
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  • Julson, JamesDepartment of Agricultural and Biosystems Engineering, South Dakota State University, Brookings, USA
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Abstract
The study focus was an examination of the hydrothermal pretreatment method applied to the lignocellulosic substrate, represented by the prairie cord grass, and comparison between different conditions based on the yield of glucose after enzymatic hydrolysis. The treatment did not involve any chemicals usage. Enzymatic hydrolysis was performed in order to examine the amount of glucose which was released from pretreated materials. The most efficient pretreatment conditions were at high temperature and relatively short reaction time (210°C and 10 min), after which the lignocellulose structure was the most available for enzymes actions which resulted in a pretreatment conversion rate of 97%. Temperature had a significant influence on glucose release during the hydrolysis, which was confirmed by the Michaelis-Menten and kinetic models. Kinetic models were used to fit the inhibitors and their conversion rates were related to temperature.
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Lei, H., Cybulska, I., & Julson, J. (2013). Hydrothermal Pretreatment of Lignocellulosic Biomass and Kinetics. Journal of Sustainable Bioenergy Systems, 03(04), 250-259. https://doi.org/10.4236/jsbs.2013.34034 (Original work published 2013)