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Application of ZSM-5 zeolite membrane for esterification of isoamyl acetate

Authors： XUE Miao, ZHU Meihua*, ZHONG Caijun, YANG Yiming, LI Yuqin, HU Na, ZHANG Fei, Chen Xiangshu*

Units： Institute of Advanced Materials, College of Chemistry and Chemical Engineering, Jiangxi Normal University,

KeyWords： ZSM-5 zeolite membrane; Isoamyl acetate; Esterification; Pervaporation

ClassificationCode：O6，TQ， G3

year,volume(issue):pagination： 2018,38(4):107-112

Abstract：

The high performance ZSM-5 zeolite membrane is in-situ removed H2O from the esterification of acetic acid and isoamyl alcohol by pervaporation. Influences of reaction conditions on the ethanol conversion are studied in details. Compared with the traditional esterification of acetic acid and isoamyl alcohol, the esterification with “membrane extractor” has a well isoamyl acetate yields at low reaction temperature. As the reaction temperature, acetic acid/ isoamyl alcohol molar ratio, and effective membrane surface area to esterification mixture ratio volume are 100 ºC, 3.0/1.0 and 0.26 cm2/cm3, the isoamyl acetate yields is 98.39%, and the corrseponding membrane total flux and separation factor (H2O to organic) are 0.21 kg·m-2·h-1 and 1040, respectively. Besides, the ZSM-5 zeolite membrane shows well long-term stablilty and reproducibility for the pervaporation-esterification, the isoamyl acetate yields of the esterification-pervaporation for intermittent 8 times or continuous 160 h are still kept 97.73%. In addition, the ZSM-5 zeolite membrane is still kept the MFI zeolite structure and morphology by XRD, SEM and EDX characterization results.

Funds：

国家自然科学基金面上项目(21476099)，国家国际科技合作专项（2015DFA50190），江西省科技厅科技项目((20171BCB24005)，江西省自然科学基金（20151BAB213037）

AuthorIntro：

第一作者简介：薛淼（1994年4月），女，陕西咸阳，硕士研究生，研究方向为分子筛膜的制备与应用 E-mail：xuemiao0402@163.com 通讯作者，E-mail：zhumeihua@jxnu.edu.cn, cxs66cn@jxnu.edu.cn

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