Black liquor-derived carbonaceous solid acid catalyst for the hydrolysis of pretreated rice straw in ionic liquid
文献类型: 外文期刊
第一作者: Bai, Chenxi
作者: Bai, Chenxi;Zhu, Linfeng;Shen, Feng;Qi, Xinhua;Bai, Chenxi;Zhu, Linfeng
作者机构:
关键词: Biomass;Alkali pretreatment;Black liquor;Lignin;Ionic liquid
期刊名称:BIORESOURCE TECHNOLOGY ( 影响因子:9.642; 五年影响因子:9.237 )
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收录情况: SCI
摘要: Lignin-containing black liquor from pretreatment of rice straw by KOH aqueous solution was applied to prepare a carbonaceous solid acid catalyst, in which KOH played dual roles of extracting lignin from rice straw and developing porosity of the carbon material as an activation agent. The synthesized black liquor-derived carbon material was applied in catalytic hydrolysis of the residue solid from the pretreatment of rice straw, which was mainly composed of cellulose and hemicellulose, and showed excellent activity for the production of total reducing sugars (TRS) in ionic liquid, 1-butyl-3-methyl imidazolium chloride. The highest TRS yield of 63.4% was achieved at 140 degrees C for 120 min, which was much higher than that obtained from crude rice straw under the same reaction conditions (36.6% TRS yield). Overall, this study provides a renewable strategy for the utilization of all components of lignocellulosic biomass. (C) 2016 Elsevier Ltd. All rights reserved.
分类号: Q
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