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http://dx.doi.org/10.9713/kcer.2016.54.1.1

Two-step Acid Hydrolysis Method for Producing Fermentable Sugar from Lignocellulosic Biomass  

Park, Jang Han (Department of Chemical Engineering, Kyonggi University)
Kim, Jun Seok (Department of Chemical Engineering, Kyonggi University)
Publication Information
Korean Chemical Engineering Research / v.54, no.1, 2016 , pp. 1-5 More about this Journal
Abstract
For obtain fermentable sugar, we conducted acid hydrolysis with lignocellulosic biomass without enzyme. The lignocellulosic biomass used pinus rigida and Palm residues (EFB; empty fruit bunches). In the acid hydrolysis, we consider the hydrolysis condition to reduce a denatured sugar. So this study was conducted 2-step acid hydrolysis. First-step hydrolysis used high concentration (72 wt%) sulfuric acid at $80^{\circ}C$. At the condition, we obtained 11.49 wt%, 32 wt% glucose conversion for pinus rigida and EFB. After the step, the liquor was dilute until 9~15 wt% acid concentration and conducted second hydrolysis at $50{\sim}120^{\circ}C$. In the second hydrolysis, we obtained maximum glucose conversion (pinus rigida 86.8 wt% (39 g/L) and EFB 95.3 wt% (32.4 g/L)) at 9 wt% acid concentration and $120^{\circ}C$ for 80 min. All samples through the process are analyzed on the basis of mass balance.
Keywords
Lignocellulosic Biomass; Acid Hydrolysis; Two-step Pretreatment; Fermentable Sugar;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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