生物质催化制备5-乙氧基甲基糠醛研究进展  

Progress in the preparation of 5-ethoxymethylfurfural by biomass alcoholysis

作　　者：徐桂转[1] 郑张斌 王世杰 王晨 张少浩 XU Guizhuan;ZHENG Zhangbin;WANG Shijie;WANG Chen;ZHANG Shaohao(College of Mechanical and Electrical Engineering,Henan Agricultural University,Zhengzhou 450002,China)

机构地区：[1]河南农业大学机电工程学院,郑州450002

出　　处：《华中农业大学学报》2020年第5期176-184,共9页Journal of Huazhong Agricultural University

基　　金：国家自然科学基金联合基金项目(U1904122)。

摘　　要：生物质醇解是生物质高值化利用的一种方式,可以转化制备得到与汽油和柴油燃烧特性相近的液体燃料5-乙氧基甲基糠醛(5-ethoxymethylfurfural,EMF)。本文对生物质醇解转化制备EMF的原料、催化体系和溶剂体系进行了文献综述,总结了糖类、木质纤维素类不同原料制备液体燃料的现状和趋势;综述和分析了均相和非均相催化体系在生物质醇解制备EMF中的优劣;探讨了EMF制备过程中溶剂体系的作用和效果,对生物质醇解制备EMF的研究趋势进行了展望。Biomass alcoholysis is a way of high-value utilization of biomass,which can be directly converted into 5-ethoxymethylfurfural(EMF)known as a liquid fuel and fuel additives with similar combustion characteristics and energy density to gasoline and diesel.The high octane number,high boiling point and stable flash point of EMF make it a suitable transportation fuel.In this paper,the feedstock,catalytic system and solvent system for the preparation of liquid fuel by biomass alcoholysis was reviewed.The current situation and developing trend of the preparation of liquid fuels from different materials including lignocellulosic materials,fructose and glucose were summarized.The homogeneous,heterogeneous and ionic liquid catalytic systems in the process of EMF preparation from biomass were reviewed and analyzed.The advantages and disadvantages of different catalytic systems were compared.Traditional homogeneous catalysts have the advantages of easy availability and low cost with a moderate yields of EMF in general,but the recycle of the homogeneous catalysts and the corrosion of equipment are still far from satisfactory.Among them,ionic liquids have attracted wide attention due to their low toxicity,high polarity,adjustable acidity,easy separation and recovery,and high catalytic efficiency,but the cost is too high for large-scale industrial production,which is the main drawback to be solved.Heterogeneous catalysts can reduce equipment corrosion and make it much easier for the separation and recovery after the reaction.Most of the heterogeneous catalysts have the advantage of adjustable acidity,high mechanical strength,high thermal stability and high chemical stability.Heterogeneous catalysts are therefore considered to be promising.The function and effect of solvent system in the process of biomass alcoholysis were discussed.Ethanol is the most widely used solvent system in the EMF production,for it is also the necessary reactant in the alcoholysis reaction.Organic solvents including DMSO(dimethyl sulfoxide),THF(tetrahyd

关 键 词：5-乙氧基甲基糠醛 5-羟甲基糠醛 生物质 固体催化剂 液体燃料 催化体系 两组溶剂体系 燃料添加剂 

分 类 号：S216.2[农业科学—农业机械化工程]