Growth process and short chain alcohol separation performance of fluoride-containing NaY zeolite membrane

被引：9

作者：

Chen, Xiaopan ^{[1
]}

Zhu, Meihua ^{[1
]}

Xiang, Sitong ^{[1
]}

Gui, Tian ^{[1
]}

Wu, Ting ^{[1
]}

Li, Yuqin ^{[1
]}

Hu, Na ^{[1
]}

Kumakiri, Izumi ^{[2
]}

Chen, Xiangshu ^{[1
,2
]}

Kita, Hidetoshi ^{[2
]}

机构：

[1] Jiangxi Normal Univ, Coll Chem & Chem Engn, Inst Adv Mat, State Prov Joint Engn Lab Zeolite Membrane Mat, Nanchang 330022, Jiangxi, Peoples R China

[2] Yamaguchi Univ, Grad Sch Sci & Technol Innovat, Grad Sch Sci & Engn, Ube, Yamaguchi 7558611, Japan

来源：

CHINESE JOURNAL OF CHEMICAL ENGINEERING | 2021年 / 29卷

基金：

中国国家自然科学基金;

关键词：

NaY zeolite membrane; Growth process; Fluoride-containing; Short chain alcohols; Pervaporation;

D O I：

10.1016/j.cjche.2020.09.005

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Growth process of the NaY zeolite membranes was investigated by fluoride-containing precursor synthesis gel. Compared with the fluoride-free precursor synthesis gel, the irregular NaY zeolite crystals were dissolved into amorphous by the fluoride-containing precursor synthesis gel initially, the amorphous contained the Y-type zeolite characteristic bands by the IR characterization. The fine square NaY zeolite crystals arose from the amorphous, which were accumulated and gradually grew into a dense NaY zeolite layer on the support surface after 6.5 h. Because the excessive NaY zeolites were dissolved by the strong alkaline and fluoride-containing precursor synthesis gel, there was plenty of amorphous on NaY zeolites layer for prolonging the crystallization time. The as-synthesized NaY zeolite membranes had a good separation performance and repeatability for separation of 10 wt% methanol (MeOH)/methyl methacrylate (MMA) mixture by pervaporation, the flux and separation factor were (1.27 +/- 0.07) kg.m(-2).h(-1) and (4900 +/- 1500) at 323 K, respectively. Besides, the NaY zeolite membranes were applied to separate the other short chain alcohol from the various alcohol/organic ester and alcohol/organic ether mixtures, the NaY zeolite membranes showed high short chain alcohol perm-selectivity. (C) 2020 The Chemical Industry and Engineering Society of China, and Chemical Industry Press Co., Ltd. All rights reserved.

引用

页码：154 / 159

页数：6

共 23 条

[1] Material encapsulation in poly(methyl methacrylate) shell: A review [J].