化工学报Issue(11)：4557-4563,7.DOI:10.3969/j.issn.0438-1157.2014.11.049
瞬间弹射蒸汽爆破联用化学法预处理玉米秸秆的组分和酶解分析
Evaluation of instant catapult steam explosion combined with chemical pretreatments on corn stalk by components and enzymatic hydrolysis analysis
摘要
Abstract
Combining with instant catapult steam explosion (ICSE), corn stalk was pretreated by different chemical methods, including dilute acid, sodium hydroxide, aqueous ammonia, organic solvent, and ionic liquid. In order to obtain a green and highly efficient process, materials were analyzed by components and enzymatic hydrolysis analysis. ICSE could significantly prompt the effects of chemical methods on lignocellulose pretreatment. Among these approaches, ICSE combined with sodium hydroxide had the highest glucose yield 77.54%. Meanwhile, compared with the solo ionic liquid pretreated method, ICSE combined with ionic liquid pretreatment increased glucose yield by 7.78 folds, reaching 60.04%. Considering the requirements of efficiency, green process and low energy cost on pretreatment, the method of ICSE plus ionic liquid was selected as the optimal method and materials then were analyzed with Fourier transformed infrared (FT-IR), X-ray diffraction (XRD) and scanning electron microscope (SEM) to analyze its mechanism. The materials treated by ICSE were porous, unconsolidated, low hemicellulose content and inclined to be dissolved by ionic liquid. When ICSE was combined with ionic liquid pretreatment, lignocellulosic cellulose components were transformed from cellulose-Ⅰ to cellulose-Ⅱ with the lowest crystallinity index.关键词
生物燃料/生物质/预处理/玉米秸秆/瞬间弹射蒸汽爆破/离子液体/酶解Key words
biofuel/biomass/pretreatment/corn stalk/instant catapult steam explosion/ionic liquid/enzymatic hydrolysis分类
化学化工引用本文复制引用
刘黎阳,郝学密,刘晨光,白凤武..瞬间弹射蒸汽爆破联用化学法预处理玉米秸秆的组分和酶解分析[J].化工学报,2014,(11):4557-4563,7.基金项目
中国博士后科学基金特别资助项目 （）
中央高校基本科研业务费专项资金项目 （）
国家高技术研究发展计划项目 （）
国家国际科技合作专项（2013DFA60470-1）。@@@@ supported by the China Postdoctoral Science Special Foundation (2013T60286), the Fundamental Research Funds for Central Universities (DUT14QY19), the National High Technology Research and Development Program of China(2012AA021205) and the International S&T Cooperation Program of China(2013DFA60470-1) （2013T60286）
