文献类型：期刊文献

英文题名：Acid pretreatment of bagasse pith at low temperature with steam-assisted heating

作者：Lu Bianfang[1];Zhang Suping[2];Wang Gang[1];Chen Yuancheng[1];Ren Zhengwei[2];Xu Qingli[2];Yan Yongjie[2]

机构：[1]E China Univ Sci & Technol, Dept Chem Engn Energy Resources, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Minist Educ, Key Lab Coal Gasificat & Energy Chem Engn, Shanghai 200237, Peoples R China

年份：2013

卷号：5

期号：4

外文期刊名：JOURNAL OF RENEWABLE AND SUSTAINABLE ENERGY

收录：;EI(收录号：20133816766765);WOS:【SCI-EXPANDED(收录号:WOS:000323945600050)】；

基金：The study supported by Chinese National High-tech R&D Program (863 Program) (2012AA101806), National Key Technology Support Program (2012BAD32B0705, 2011BAD22B01-04), and the program for New Century Excellent Talents (NCET-11-0642) in University are greatly appreciated.

语种：英文

外文关键词：Bagasse - Cellulose

摘要：In this paper, dilute acid pretreatment of bagasse pith was investigated at low temperature. Process parameters varied including mass ratio of liquid to solid (r = 6:1-12:1 l/kg), reaction temperature (T = 100 degrees C-130 degrees C), and acid concentration (c = 0.75wt.%-1.5 wt.%) in order to effectively transform hemicellulose to fermentable sugar to improve the utilization of bagasse pith. The effects of dilute acid pretreatment were evaluated by fermentable sugar yield and decomposition products concentration. The optimum pretreatment conditions for depolymerization of hemicellulose bagasse pith was obtained at r = 10:1 l/kg, T = 120 degrees C, c = 1.0 wt. %, t = 16 min. From this paper, it could be concluded that dilute acid pretreatment can be successfully applied to bagasse pith to achieve high yield of xylose (84.41%) with acceptable levels of fermentation inhibitors formation. (C) 2013 AIP Publishing LLC.