文献类型：期刊文献

英文题名：Conversion of cellulose into 5-hydroxymethylfurfural in an H2O/tetrahydrofuran/cyclohexane biphasic system with Al2(SO4)3 as the catalyst

作者：Shi, Ning Zhu, Yuju Qin, Bangzhi Liu, Ying Zhang, Hongyan Huang, Hongsheng Liu, Yunhua

第一作者：石宁

机构：[1] School of Chemical Engineering, Guizhou Institute of Technology, Guiyang, 550003, China

第一机构：贵州理工学院化学工程学院

通信机构：School of Chemical Engineering, Guizhou Institute of Technology, Guiyang, 550003, China|贵州理工学院化学工程学院;贵州理工学院;

年份：2022

卷号：29

期号：4

起止页码：2257-2272

外文期刊名：Cellulose

收录：EI(收录号：20220711621098);Scopus(收录号：2-s2.0-85124373162)

语种：英文

外文关键词：Catalysts - Aluminum compounds - Cyclohexane

摘要：A simple and efficient biphasic system comprising H2O, tetrahydrofuran (THF), cyclohexane (CHX) and Al2(SO4)3 was employed to convert cellulose into 5-hydroxymethylfurfural (HMF). The volume ratio of the organic phase to the aqueous phase (Vorg/Vaque), concentration of Al2(SO4)3 in the aqueous phase (C[Al2(SO4)3]aque) and concentration of Al2(SO4)3 in the organic phase (C[Al2(SO4)3]org) of the biphasic system played critical roles in the conversion of cellulose into HMF. In the biphasic systems with H2O/THF/Al2(SO4)3 of 4/18/0.4 and H2O/THF/CHX/Al2(SO4)3 of 3/16/3/0.4, > 80% of the added H2O was dissolved in the organic phase, whereas most of the added Al2(SO4)3 remained in the aqueous phase under the reaction temperature, jointly leading to high Vorg/Vaque, high C[Al2(SO4)3]aque and low C[Al2(SO4)3]org in the biphasic system. All of these results yield the excellent performance of these biphasic systems in the conversion of cellulose into HMF. The addition of CHX into the biphasic system can decrease the solubility of Al2(SO4)3 in the organic phase, thus improving the stability of HMF in the reaction system. The influences of catalyst usage, reaction temperature and time, and cellulose/solvent ratio were all explored, and a high HMF yield of 71.2% was obtained in the H2O–THF–CHX biphasic system with an H2O/THF/CHX volume ratio of 3/16/3 under optimized conditions. Graphical abstract: [Figure not available: see fulltext.] ? 2022, The Author(s), under exclusive licence to Springer Nature B.V.