文献类型：期刊文献

英文题名：Catalytic Transformation of Lignocellulosic Biomass into Arenes, 5-Hydroxymethylfurfural, and Furfural

作者：Guo, Tianye[1];Li, Xiangcheng[1];Liu, Xiaohui[1];Guo, Yong[1];Wang, Yanqin[1]

机构：[1]East China Univ Sci & Technol, Sch Chem & Mol Engn, Res Inst Ind Catalysis, Shanghai Key Lab Funct Mat Chem, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2018

卷号：11

期号：16

起止页码：2758

外文期刊名：CHEMSUSCHEM

收录：;EI(收录号：20183105632128);WOS:【SCI-EXPANDED(收录号:WOS:000442491300015)】；

基金：This work was supported financially by the NSFC of China (No. 91545103), the Fundamental Research Funds for the Central Universities (222201718003, 222201817022), and the Science and Technology Commission of Shanghai Municipality (10dz2220500).

语种：英文

外文关键词：aromatic hydrocarbons; biomass; furfural; heterogeneous catalysis; lignocellulose

摘要：The complete transformation of lignocellulosic biomass into valuable platform chemicals is of great significance. Herein, a catalytic process for the upgrading of lignocellulose to arenes, 5-hydroxymethylfurfural (HMF), and furfural is reported. Firstly, the lignin fraction in lignocellulosic biomass is selectively converted into lignin oil (82.9mol% yield of lignin monomers from birch wood) over a Pd/C catalyst and then further hydrodeoxygenated to arenes in catalytic hydrogen-transfer reactions over a Ru/Nb2O5 catalyst. High yields of C-7-C-9 hydrocarbons (95.6mol%) with 85.6wt% selectivity to arenes based on lignin oil are achieved owing to the synergistic effect between Ru and Nb2O5, which enables direct hydrogenolysis of the C-aromatic-OH bond in phenolics. Secondly, the cellulose and hemicellulose fractions in the Pd/C-containing solid residue, as well as methylated C-5 sugars produced during the stripping of lignin, are converted into HMF and furfural with a total yield of up to 24.5wt% (based on the amount of birch wood) in a THF/concentrated seawater (ca.30wt% salts) biphasic reaction system. Here, seawater played a key role in the conversion of cellulose and hemicellulose into HMF and furfural, respectively; more importantly, it made the separation and reuse of the Pd/C catalyst easier. With this catalytic process, the complete and efficient transformation of lignocellulose into highly value-added products with recycling of each catalyst and solvent has been realized.