Ball milling promoted direct liquefaction of lignocellulosic biomass in supercritical ethanol
球 milling 在 supercritical 乙醇支持了 lignocellulosic 生物资源的直接液化作者机构：School of Chemical EngineeringSichuan UniversityChengdu 610065China Institute of New Energy and Low-Carbon TechnologySichuan UniversityChengdu 610207China
出 版 物：《Frontiers of Chemical Science and Engineering》 (化学科学与工程前沿（英文版）)
年 卷 期：2020年第14卷第4期
页 面：605-613页
核心收录：
学科分类：082903[工学-林产化学加工工程] 08[工学] 0829[工学-林业工程]
基 金：supported by the Key Program of National Natural Science Foundation of China(Grant No.21336008) the Fundamental Research Funds for the Central Universities(No.2018SCU12002)
主 题：ball milling lignocellulose superitial etha-nol liquefaction bio-oil
摘 要：In the present work,ball milling was applied for the pretreatment of lignocellulose to obtain high conversion and bio-oil yield in supercritical *** milling substantially decreased the crystallinity and particle size of lignocellulose,thereby improving its accessibility in ethanol *** increased bio-oil yield of 59.2%was obtained for the ball milled camphor-wood sawdust at 300℃,compared with 39.6%for the original *** crystallinity signifi-cantly benefited the conversion of the cellulose component from 60.8%to 91.7%,and decreased particle size was beneficial for the conversion of all *** obtained bio-oil had a high phenolic content,as analyzed by gas chromatography-mass *** and retro-aldol condensation were observed during alcoholysis,and the reaction pathways of lignocellulose in supercritical ethanol were attributed to the action of free radicals.
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