Fabrication and Characterization of Titanate Nanotube Supported ZSM-5 Zeolite Composite Catalyst for Ethanol Dehydration to Ethylene

被引：3
作者：
Wu, Liangpeng [1 ]
Li, Xinjun [1 ]
Yuan, Zhenhong [1 ]
Chen, Yong [1 ]
机构：
[1] Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China
来源：
BULLETIN OF THE KOREAN CHEMICAL SOCIETY | 2014年 / 35卷 / 02期
基金：
中国国家自然科学基金;
关键词：
ZSM-5; zeolite; TiO2; nanotube; Ethanol; Dehydration; Ethylene; MODIFIED H-ZSM-5 CATALYSTS; CONVERSION; PERFORMANCE; ALUMINA; ETHER;
D O I：
10.5012/bkcs.2014.35.2.525
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Titanium dioxide nanotube supported ZSM-5 zeolite composite catalyst was fabricated by decorating ZSM-5 zeolite on the hydrothermally synthesized titanium dioxide via hydrothermal process and subsequent annealing. The catalyst was characterized by X-ray powder diffraction (XRD), Transmission electron microscopy (TEM) and Nitrogen adsorption-desorption (BET). The surface acidity of the catalyst was measured by means of Fourier transform infrared (FT-IR) spectrum of pyridine adsorption. And the catalytic activity for ethanol dehydration to ethylene was evaluated in a continuous flow fixed-bed reactor. Attributed to the increase of the effective surface acid sites caused by titanium dioxide nanotube as electron acceptor, titanium dioxide nanotube supported ZSM-5 zeolite composite catalyst exhibits strongly enhanced activity for ethanol dehydration to ethylene.
引用
收藏
页码：525 / 530
页数：6
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