文献类型：期刊文献

英文题名：Synthesis of furfural from xylan in gamma-valerolactone/molten salt hydrate biphasic system

作者：Liu, Chao[1,2] Wei, Linshan[1] Yin, Xiaoyan[1] Pan, Xueyuan[1] Hu, Jun[3] Li, Neng[4] Xu, Junming[1,2] Jiang, Jianchun[1,2] Wang, Kui[1,2]

第一作者：Liu, Chao

通信作者：Jiang, JC[1];Wang, K[1];Jiang, JC[2];Wang, K[2]

机构：[1]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Key Lab Biomass Energy & Mat, Natl Engn Lab Biomass Chem Utilizat, Nanjing 210042, Jiangsu, Peoples R China;[2]Nanjing Forestry Univ, Coinnovat Ctr Efficient Proc & Utilizat Forest Re, Nanjing 210037, Peoples R China;[3]Northwest Univ, Sch Chem Engn, Xian 710069, Peoples R China;[4]Wuhan Univ Technol, State Key Lab Silicate Mat Architectures, 122 Luoshi Rd, Wuhan 430070, Peoples R China

年份：2021

卷号：425

外文期刊名：CHEMICAL ENGINEERING JOURNAL

收录：;EI(收录号：20212610571821);Scopus(收录号：2-s2.0-85108736502);WOS:【SCI-EXPANDED(收录号:WOS:000707126000081)】；

基金：The authors would like to thank the Fundamental Research Funds of CAF (CAFYBB2019QB007), National Science Foundation of China (31870714) and the Youth Talent Support Program for Science & Technology Innovation of National Forestry and Grassland (2019132603) for financial support. This research project was supported by Central for High Performance Computing of Northwestern Polytechnical University, China.

语种：英文

外文关键词：Lignocellulosic biomass; Xylan; Furfural; Molten salt hydrate; gamma-valerolactone

摘要：Herein, we reported a facile and efficient process for synthesis of furfural (FAL) from xylan in biphasic system. The excellent performance of more than 99.9% conversion of xylan with 77.22 mol% yield of FAL was obtained at 140 degrees C for 2 h. Notably, gamma-valerolactone (GVL) was selected as the organic phase which played a key role in extracting and preserving the product FAL. Furthermore, a self-prepared molten salt hydrate (LiCl center dot 3H(2)O) was designed as the water phase which conducted as both the solvent and catalyst. Besides, a proposed mechanism for the process is also investigated, especially on the pathways for the isomerization of xylose catalyzed by Al-2(SO4)(3) and LiCl center dot 3H(2)O, respectively. Moreover, density functional theory (DTF) calculations were implemented to get insights into the total activation free energy of xylose isomerization to xylulose under different solvent ratios. Both of the catalyst and biphasic system could be recycled by simple steps, accompanying with more than 73.0 mol% of FAL yield obtained after three retrievals, which sheds lights on facile and efficient industrial production of FAL from corncob and lignocellulosic biomass.