聚甲氧基二甲醚的合成及工艺技术研究进展

Research progress on synthesis and technology of polymethoxy dimethyl ethers

聚甲氧基二甲醚因具有十六烷值高、与柴油互溶性好、含氧量高等优点,与柴油混配后作为柴油燃料可以提高柴油机热效率,大幅降低污染物排放,是很有发展前景的绿色环保柴油添加组分。本文综述了聚甲氧基二甲醚当前研究进展情况,重点介绍了聚甲氧基二甲醚的物化特性及优势、合成方法、反应机理及工艺技术等研究进展,分析了聚甲氧基二甲醚的应用及前景,指出聚甲氧基二甲醚在作为柴油调和组分、溶剂和柴油低温流动性改进剂等方面具有很好的应用前景。

Polymethoxy dimethyl ethers（PODE_n） are the new kind of green and environment-friendly diesel fuel additive,which have excellent performance and great application potential because of their high cetane number,high oxygen content and non-intermiscibility gap between diesels.It can improve the diesel fuel’s cetane number and combustibility while reduce the emissions of pollutant.This work provided an overview of the progress of PODE_nresearch in China and abroad,with the focus on the research background and significance,advantages of PODE_n,synthesis methods,process and technology.Finally,potential applications of PODE_n were analyzed,and it was prospected that they were favorable to be used as diesel blending compounds,solvents or low temperature flow improver for diesel fuel.