Effect of the improved preparation method on the structure and acidity of WO3/ZrO2 solid superacid

Cun Zhang, Chun Yan Ma, Pan Ming Jian, Xiao Qin Liu

科研成果: 期刊稿件文章同行评审

5 引用 (Scopus)

摘要

In order to prepare the solid superacid catalyst with higher catalytic activity, the common impregnation process for preparing WO3/ZrO2 solid superacid was improved. The catalysts prepared by using Zr(OH)4 supports with and without alcoholation separately were characterized by BET, XRD, NH3-TPD and SEM, respectively. The results reveal that more dispersive tungsten active component can be loaded on the Zr(OH)4 support treated with alcoholation, and the catalyst prepared with this support possesses larger specific surface area. Besides, in the catalyst prepared with this support, ZrO2 exists mainly in the tetragonal phase after calcination at high temperature, which causes the prepared WO3/ZrO2 superacid catalyst to present higher acidic strength and total acid amount. Moreover, the above catalyst prepared disperses in small particles and gives higher catalytic activity when it is used in the catalytic oxidative desulfurization of diesel.

源语言英语
页(从-至)667-672
页数6
期刊Gao Xiao Hua Xue Gong Cheng Xue Bao/Journal of Chemical Engineering of Chinese Universities
23
4
出版状态已出版 - 8月 2009

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