期刊
BIORESOURCE TECHNOLOGY
卷 212, 期 -, 页码 111-119出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2016.04.014
关键词
AVAP (R) process; Biorefinery; Biofuels; SO2-ethanol-water fractionation; Sugarcane straw
资金
- American Process Inc.
Kinetics of SO2-ethanol-water (AVAP (R)) fractionation was determined for sugarcane (SC) straw in terms of pulp composition (non-carbohydrate components, cellulose, hemicelluloses) and properties (kappa number, pulp intrinsic viscosity in CED and cellulose degree of polymerization). Effect of temperature (135-165 degrees C) and time (18-118 min) was studied at fixed liquor composition (SO2/ethanol/water = 12:22.5:65.5, w/w) and a liquor-to-solid ratio (4 L kg (1)). Interpretation is given in terms of major fractionation reactions, removal of non-carbohydrate components and xylan, as well as acid hydrolysis of cellulose, and is compared to other lignocellulosic substrates (beech, spruce and wheat straw). Overall, SO2-ethanol-water process efficiently fractionates SC straw by separating cellulose from both noncarbohydrate components and xylan while reducing cellulose DP. (C) 2016 Elsevier Ltd. All rights reserved.
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