燃料化学学报2017，Vol.45Issue(6)：669-674,6.
SO2-4/ZrO2-Al2O3催化剂表面酸性质对正丁烷异构化反应性能的影响研究
Study on the structure-reactivity correlation of SO2-4/ZrO2-Al2O3 in n-butane isomerization reaction
摘要
Abstract
A series of alumina-promoted sulfated zirconia catalysts were prepared by precipitation-impregnation method.The catalysts were characterized by N2 sorption, pyridine adsorption Fourier transform infrared spectroscopy (Py-FTIR), X-ray diffraction (XRD).Their catalytic performance in n-butane isomerization was evaluated in a continuous flow type fixed-bed micro-reactor at atmospheric pressure, 200℃, and H2∶C4=2∶3, with a weight hourly space velocity of n-butane (WHSV) of 3h-1.The structure-reactivity relationship between surface acidity and catalytic behavior was revealed.Py-FTIR indicates that the sulfated treatment enhances the strength and density of catalytic Brnsted acid sites, which are essential for n-butane isomerization.Therefore, sulfated treatment can significantly improve the activity of n-butane isomerization, and Lewis acidity has no direct effect on it.关键词
SO2-4/ZrO2-Al2O3/酸性位/正丁烷/异构化Key words
SO2-4/ZrO2-Al2O3/acidity/n-butane/isomerization分类
化学化工引用本文复制引用
张文芳,张敏秀,王鹏照,杨朝合,李春义..SO2-4/ZrO2-Al2O3催化剂表面酸性质对正丁烷异构化反应性能的影响研究[J].燃料化学学报,2017,45(6):669-674,6.基金项目
The project was supported by the Basic Research Fund of Central University (16CX06009A) and Graduate Student Innovation Project Funds of China University of Petroleum (YCXJ2016031) （16CX06009A）
中央高校基础研究基金(16CX06009A)和中国石油大学(华东)研究生自主创新工程基金(YCXJ2016031)资助 （16CX06009A）
