曹悦^1,2,李宇璇¹,马晓华¹,许振良¹

• 1:化学工程联合国家重点实验室，华东理工大学 化学工程研究所膜科学与工程研发中心，上海 200237
• 2:西北大学 食品科学与工程学院，陕西 西安 710069

摘要(Abstract)：

针对乙醇和叔丁醇反应制备乙基叔丁基醚（ETBE）时产物水的阻碍效应所造成的ETBE收率不高的问题，提出以中空纤维NaA分子筛膜为核心元件，构建渗透汽化膜反应器（PVMR），使反应生成的水能够通过渗透汽化作用高效地在线脱除。通过与普通反应器的对比实验发现，料液初始醇比的升高可以抑制副反应的进行，提高ETBE的最终收率，但同时乙醇的稀释作用会导致PVMR脱水效率的下降。此外，无论是增加初始料液中乙醇的用量，还是采用具有过程强化作用的PVMR，对该醚化反应过程的促进作用均体现在主反应选择性的提高，而对叔丁醇转化率的影响则相对较小。结果表明，通过反应条件的优化，ETBE的收率由最低时的9%提高到25%。

关键词(KeyWords)： NaA分子筛膜;渗透汽化;膜反应器;乙基叔丁基醚;醚化反应

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金（21176067）；陕西省自然科学基金重点研发计划（2020NY-123）。

作者(Author): 曹悦^1,2,李宇璇¹,马晓华¹,许振良¹

DOI: 10.3969/j.issn.1003-9015.2021.04.009

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