Dehydrogenation of Isobutane with Carbon Dioxide over SBA-15-Supported Vanadium Oxide Catalysts

Wei, Chunling; Xue, Fangqi; Miao, Changxi; Yue, Yinghong; Yang, Weimin; Hua, Weiming; Gao, Zi

doi:10.3390/catal6110171

Volume 6, Issue 11

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Dehydrogenation of Isobutane with Carbon Dioxide over SBA-15-Supported Vanadium Oxide Catalysts

Chunling Wei^1,2, Fangqi Xue¹, Changxi Miao^2,*, Yinghong Yue¹, Weimin Yang², Weiming Hua^1,* and Zi Gao¹

Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200433, China

Shanghai Research Institute of Petrochemical Technology SINOPEC, Shanghai 201208, China

Authors to whom correspondence should be addressed.

Academic Editor: Xiao-Feng Wu

Catalysts 2016, 6(11), 171; https://doi.org/10.3390/catal6110171

Received: 31 August 2016 / Revised: 25 October 2016 / Accepted: 25 October 2016 / Published: 31 October 2016

(This article belongs to the Special Issue Organometallic Catalysis for Organic Synthesis)

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Abstract

A series of vanadia catalysts supported on SBA-15 (V/SBA) with a vanadia (V) content ranging from 1% to 11% were prepared by an incipient wetness method. Their catalytic behavior in the dehydrogenation of isobutane to isobutene with CO₂ was examined. The catalysts were characterized by N₂ adsorption, X-ray diffraction (XRD), scanning electron microscopy (SEM), Raman spectroscopy, and temperature-programmed reduction (TPR). It was found that these catalysts were effective for the dehydrogenation reaction, and the catalytic activity is correlated with the amount of dispersed vanadium species on the SBA-15 support. The 7% V/SBA catalyst shows the highest activity, which gives 40.8% isobutane conversion and 84.8% isobutene selectivity. The SBA-15-supported vanadia exhibits higher isobutane conversion and isobutene selectivity than the MCM-41-supported one. View Full-Text

Keywords: dehydrogenation; isobutane; carbon dioxide; vanadia; SBA-15; supported catalyst

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Wei, C.; Xue, F.; Miao, C.; Yue, Y.; Yang, W.; Hua, W.; Gao, Z. Dehydrogenation of Isobutane with Carbon Dioxide over SBA-15-Supported Vanadium Oxide Catalysts. Catalysts 2016, 6, 171.