A process insight into production of ethyl levulinate via a stepwise fractionation  

作　　者：Yan Ma Hongxiao Wang Ziyang Wu Weihong Tan Guodong Feng Jianchun Jiang 

机构地区：[1]Institute of Chemical Industry of Forest Products,Chinese Academy of Forestry,Nanjing 210042,China [2]Jiangsu Province Key Lab.of Biomass Energy and Material,Nanjing 210042,China [3]National Engineering Lab.for Biomass Chemical Utilization,Nanjing 210042,China [4]Co-Innovation Center of Efficient Processing and Utilization of Forest Resources,Nanjing Forestry University,Nanjing 210037,China

出　　处：《Journal of Bioresources and Bioproducts》2024年第2期233-242,共10页生物质资源与工程（英文）

基　　金：supported by National Science Foundation of China(No.32001274).

摘　　要：Ethyl levulinate(EL)is a key biomass-derived compounds due to its socio-economic benefits for the synthesis of commodity chemicals.Herein,we proposed an efficient one-step bamboo conversion to EL in ethanol,and a novel stepwise fractionation to purify EL and lignocellulose degradation products.A proton acid,due to its high catalytic efficiency,yielded 26.65%EL in 120 min at 200℃.The productions of ethyl glucoside and 5-ethoxymethylfurfural were analyzed in terms of by-products formation.To the best of our knowledge,there is no single report on catalyst for one step synthesis of EL directly from bamboo,as well as a stepwise fractionation to purify EL.Due to similar physiochemical properties in each fraction,the platform molecules could broaden a new paradigm of bamboo biomass utilization for renewable energy and value-added biochemicals.In addition,glucose,ethyl glucoside,corn starch,and microcrystalline cellulose were also investigated as substrates,so that the reaction intermediates of this one-pot procedure were identified and a possible reaction mechanism was proposed.

关 键 词：Ethyl levulinate LIQUEFACTION Biomass ETHANOL By-products 

分 类 号：O62[理学—有机化学]