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首页> 外文期刊>Catalysts >Vanadium Oxide Supported on MSU-1 as a Highly Active Catalyst for Dehydrogenation of Isobutane with CO 2
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Vanadium Oxide Supported on MSU-1 as a Highly Active Catalyst for Dehydrogenation of Isobutane with CO 2

机译：MSU-1负载的氧化钒作为异丁烷与CO 2脱氢的高活性催化剂

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摘要

Vanadium oxide supported on MSU-1, with VO x loading ranging from 2.5 to 17.5 wt. %, was developed as a highly active catalyst in dehydrogenation of isobutane with CO 2 . The obtained catalysts of VO x /MSU-1 were characterized by X-ray diffraction (XRD), N 2 adsorption-desorption, and H 2 -temperature programmed reduction (H 2 -TPR) methods and the results showed that the large surface area of MSU-1 was favorable for the dispersion of VO x species and the optimal loading of VO x was 12.0 wt. %. Meanwhile, the catalytic activity of VO x /MSU-1 was investigated, and VO x /MSU-1 with 12.0 wt. % VO x content was found to be the best one, with the conversion of isobutane (58.8%) and the selectivity of isobutene (78.5%) under the optimal reaction conditions. In contrast with the reaction in the absence of CO 2 , the presence of CO 2 in the reaction stream could obviously enhance the isobutane dehydrogenation, which raised the conversion of reaction and the stability of VO x /MSU-1.
机译：氧化钒负载在MSU-1上，VOx负载量为2.5至17.5 wt。 ％，被开发为在CO 2异丁烷脱氢中的高活性催化剂。通过X射线衍射（XRD），N 2吸附-脱附和H 2-程序升温还原（H 2 -TPR）方法对得到的VO x / MSU-1催化剂进行了表征，结果表明该催化剂具有较大的比表面积。 MSU-1的VOX有利于VO x物质的分散，并且VO x的最佳负载为12.0wt。％。 ％。同时，研究了VO x / MSU-1的催化活性，并以12.0wt。％的VO x / MSU-1进行了分析。发现在最佳反应条件下，异丁烷的转化率（58.8％）和异丁烯的选择性（78.5％）是最好的VOx含量％。与不存在CO 2的反应相反，反应流中存在CO 2可以明显增强异丁烷的脱氢反应，从而提高了反应转化率和VO x / MSU-1的稳定性。

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