Efficient microwave-assisted production of biofuel ethyl levulinate from corn stover in ethanol medium

查看全文 作　　者：Yuxuan [1]Zhang;Xue [1]Wang;Tao [1]Hou;Huan [1]Liu;Lujia [1]Han;Weihua [1,2]Xiao

机构地区：[1]Biomass and Bioresource Utilization Laboratory,College of Engineering,China Agricultural University,Beijing 100083.Chino;[2]Key Laboratory of Clean Production and Utilization of Renewable Energy,Ministry of Agriculture,Beijing 100083,China

出　　处：《Journal of Energy Chemistry》索引2018年第27卷第3期,共8页

基　　金：financially supported by the National Key R&D Program of China(no.2016YFE0112800);National Natural Science Foundation of China(no.31671572) 摘　　要：Levulinate esters are versatile chemicals that have been used in various fields. Herein, the production of ethyl levulinate(EL) from corn stover was investigated under microwave irradiation. Several reaction parameters, including acid concentration, reaction temperature, reaction time, and liquid-to-solid mass ratio, were investigated to evaluate the reaction conditions. Response surface methodology(RSM) was employed to optimize the reaction conditions for the production of EL. A quadratic polynomial model was fitted to the data with an R2 value of 0.93. The model validation results reflected a good fit between the experimental and predicted values. A high conversion yield(58.1 mol%) was obtained at the optimum conditions of 190 °C, 30.4 min, 2.84 wt% acid, and 15 g/g liquid-to-solid mass ratio. Compared with conventional heating, microwave irradiation facilitated the conversion of corn stover to EL by dramatically shortening the reaction time from several hours to ~30 min. Thus, microwave-assisted conversion of corn stover to EL is an efficient way of utilizing a renewable biomass resource. 关键词：生产优化玉米微波乙醇媒介反应参数反应时间反应条件

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Efficient microwave-assisted production of biofuel ethyl levulinate from corn stover in ethanol medium

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