Studies on the Hydrogenation of Acetonitrile over Fresh Mo2C/γ-Al2O3 Catalyst by In-situ IR Spectroscopy

被引：0

作者：

Zhang Jing ^{[1
]}

Wu Weicheng ^{[1
]}

Liu Chuang ^{[1
]}

Ding Xiaoguang ^{[2
]}

Chu Gang ^{[1
]}

Zhang Jianguo ^{[3
]}

机构：

[1] Liaoning Shihua University, College of Chemistry, Chemical Engineering and Environmental Engineering

[2] School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology

[3] Liaoning Shihua University, School of Computer and Communication Engineering

来源：

China Petroleum Processing & Petrochemical Technology | 2015年 / 17卷 / 03期

基金：

中国国家自然科学基金;

关键词：

fresh Mo2C/γ-Al2O3 catalyst; hydrogenation; acetonitrile; in situ IR spectroscopy;

D O I：

暂无

中图分类号：

O643.36 [催化剂];

学科分类号：

081705 ;

摘要：

The adsorption of acetonitrile, the co-adsorption of acetonitrile with CO, and hydrogenation of acetonitrile on fresh Mo2C/γ-Al2O3 catalyst were studied by in situ IR spectroscopy. It was found out that CH3CN exhibited strong interaction with the fresh Mo2C/γ-Al2O3 catalyst and was adsorbed mainly on Moδ+ sites of fresh Mo2C/γ-Al2O3 catalyst. Moreover, CH3CN could affect the shifting of IR spectra for CO adsorption towards a lower wave number. The IR spectroscopic study on acetonitrile hydrogenation showed that CH3CN could be easily hydrogenated in the presence of H2 on the Mo2C/γ-Al2O3 catalyst. Furthermore, it was observed that CH3 CN could be selectively hydrogenated to imines on fresh Mo2C/γ-Al2O3 catalyst. Additionally, the active sites of fresh Mo2C/γ-Al2O3 catalyst might be covered with coke during the hydrogenation reaction of acetonitrile. The treatment of catalyst with hydrogen at 673 K could not completely remove coke deposits on the surface of the Mo2C/γ-Al2O3 catalyst.

引用

页码：61 / 66

页数：6

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