Abstract—Fractionation process of lignocellulosic biomass are a primary step for converting multi-structure biomass to biofuels and other industrial products in integrated biorefinery processes. This research was performed in order to study the effect homogeneous and heterogeneous acid promoter (H
2SO
4 and H
3PO
4-activated carbon (AC-H
3PO
4) respectively) and subsequence hydrolysis reaction in the presence of solid acid catalyst to enhance the yield and purity of sugar production. Clean fractionation (CF), a single-step aqueous-organosolv fractionation and subsequence hydrolysis reaction, of eucalyptus wood chips was studied. The operating of fractionation process contained 16.7% w/v biomass in a ternary mixture of methyl isobutyl ketone:methanol:water (25:42:33) with 5% AC-H
3PO
4 and incubated at 180 ºC for 60 min and subsequence hydrolysis reaction contained at 200 ºC for 5 min. Under these conditions, it was found that the optimized conditions that maximize the yield of sugar production are the hydrolysis of fractionated eucalyptus in the presence of AC-H
3PO
4 at 200ºC for 5 min let to 10% (35 % of substrate) glucose yield. Importantly, the great benefits of fractionation prior to the hydrolysis are the achievement of high sugar yield and the capability to separate glucose and xylose in the final product.
Index Terms—Fractionation, homogeneous, heterogeneous, and subsequence.
T. Klamrassamee and N. Laosiripojana are with the the Joint Graduate School of Energy and Environment (JGSEE), King Mongkut’s University of Technology Thonburi, Prachauthit Road, Bangmod, Bangkok 10140, Thailand (e-mail: deknaw8989@gmail.com, navadol@jgsee.kmutt.ac.th).
V. Champreda is with the Enzyme Technology Laboratory, National Center for Genetic Engineering and Biotechnology, 113 Thailand Science Park, Phahonyothin Road, Khlong Nueng, Khlong Luang, Pathum Thani 12120, Thailand (e-mail: verawat@biotec.or.th).
W. Wiyaratn is with the Department of Production Technology and Education, Faculty of Industrial Education and Technology, King Mongkut’s University of Technology Thonburi, Prachauthit Road, Bangmod, Bangkok 10140, Thailand (e-mail: wisitsree.wiy@kmutt.ac.th).
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Cite: T. Klamrassamee, V. Champreda, W. Wiyaratn, and N. Laosiripojana, "Comparison of Fractionated and Non-Fractionated Eucalyptus in Organic Solvent Subsequence Hydrolysis Reaction to Sugar Production," International Journal of Chemical Engineering and Applications vol. 6, no. 2, pp. 134-137, 2015.
