聚甲氧基二甲醚研究及应用进展

doi:10.11949/0438-1157.20201189

摘要/Abstract

摘要：

聚甲氧基二甲醚（PODE_n）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PODE_n，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。PODE_n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，PODE_n合成及应用得到广泛研究，本文详细介绍了PODE_n的特性及应用情况，总结了国内外合成PODE_n的常见反应体系及特点，详细分析了PODE_n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PODE_n的产业化情况，为PODE_n的进一步研究发展提供指导。

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

Abstract:

Polymethoxy dimethyl ether (PODE_n) 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, PODE_n can improve engine efficiency and reduce soot emission, contributing to environmental protection and energy conservation. PODE_n are derived from coal or biomass, which conforms to the characteristics of energy structure in China. The development of PODE_n industry has been a new branch of coal chemical industry in China. The synthesis and application of PODE_nhave been widely studied in recent years due to its characteristics mentioned above. This paper reviews the synthesis and application of PODE_n. The reaction kinetics, mechanism and product distribution of PODE_n synthesis are discussed in detail, followed by an introduction to the industrialization status of PODE_n. The above studies provide guidance for further research on PODE_n.

Key words: polyoxymethylene dimethyl ethers, oxygenated fuel, synthesis reaction, catalysis, kinetics, product distribution

中图分类号:

TQ 223.2

魏然, 郑妍妍, 刘昉, 王铁峰. 聚甲氧基二甲醚研究及应用进展[J]. 化工学报, 2021, 72(1): 425-439.

WEI Ran, ZHENG Yanyan, LIU Fang, WANG Tiefeng. Progress in academic and application researches on polyoxymethylene dimethyl ethers[J]. CIESC Journal, 2021, 72(1): 425-439.

图/表 5

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