Dehydrogenation of n

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• 作者：Yuebing Xu ; Jiangyin Lu ; Mei Zhong ; Jide Wang
• 关键词：n-butane ; catalytic dehydrogenation ; butene ; VO_x supported SiO₂
• 刊名：Journal of Natural Gas Chemistry
• 出版年：2009
• 出版时间：March 2009
• 年：2009
• 卷：18
• 期：1
• 页码：88-93
• 全文大小：345 K

文摘

VO_x/SiO₂ catalysts prepared by impregnation method were used for catalytic dehydrogenation of n-butane to butenes and characterized by X-ray diffraction, FT-IR, UV-vis, Raman, and BET measurements. The effects of VO_x loading and the reaction temperature on the VO_x/SiO₂ catalysts and their catalytic performances for the dehydrogenation of n-butane were studied. When the VO_x loading was 12 % g/g_cat and reaction temperature was between 590 °C and 600 °C, n-butane conversion and butenes yields reached the highest value under H₂ flux of 10 ml/min and n-butane flux of 10 ml/min. Product distribution, such as the ratio of 2-butene to 1-butene and the ratio of cis-2-butene to trans-2-butene, was mainly influenced by the reaction temperature.