聚甲氧基二甲醚研究及应用进展  

Progress in academic and application researches on polyoxymethylene dimethyl ethers

作　　者：魏然 郑妍妍[1] 刘昉 王铁峰[1] WEI Ran;ZHENG Yanyan;LIU Fang;WANG Tiefeng(Department of Chemical Engineering,Tsinghua University,Beijing 100084,China)

机构地区：[1]清华大学化学工程系,北京100084

出　　处：《化工学报》2021年第1期425-439,共15页CIESC Journal

基　　金：国家重点研发计划项目(2018YFB0604804);国家自然科学基金项目(21676155)。

摘　　要：聚甲氧基二甲醚(PODEn)具有十六烷值高、含氧量高、挥发性好、无硫及芳香烃等特点,被认为是最具应用前景的柴油调和组分。在柴油或宽馏分油中以合适比例掺混PODEn,能够提高内燃机热效率,降低发动机污染物排放,对改善环境污染及节约能源具有重要意义。PODEn以甲醇及其衍生物为原料,契合我国资源特点且利于优化能源结构调整,是我国新型煤化工发展的重要方向。近几年,PODEn合成及应用得到广泛研究,本文详细介绍了PODEn的特性及应用情况,总结了国内外合成PODEn的常见反应体系及特点,详细分析了PODEn合成反应动力学、机理及聚合产物分布等研究情况,同时介绍了现阶段我国PODEn的产业化情况,为PODEn的进一步研究发展提供指导。Polymethoxy dimethyl ether(PODEn)has the characteristics of high cetane number,high oxygen content,good volatility,no sulfur and aromatic hydrocarbons,and is considered to be the most promising diesel blending component.When blended with diesel or wide distillation fuel,PODEn can improve engine efficiency and reduce soot emission,contributing to environmental protection and energy conservation.PODEn are derived from coal or biomass,which conforms to the characteristics of energy structure in China.The development of PODEn industry has been a new branch of coal chemical industry in China.The synthesis and application of PODEn have been widely studied in recent years due to its characteristics mentioned above.This paper reviews the synthesis and application of PODEn.The reaction kinetics,mechanism and product distribution of PODEn synthesis are discussed in detail,followed by an introduction to the industrialization status of PODEn.The above studies provide guidance for further research on PODEn.

关 键 词：聚甲氧基二甲醚 含氧燃料 合成反应 催化 反应动力学 产物分布 

分 类 号：TQ223.2[化学工程—有机化工]