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

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

doi:10.3390/catal6110171

Catalysts (Oct 2016)

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

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

Affiliations

Chunling Wei: Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200433, China
Fangqi Xue: Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200433, China
Changxi Miao: Shanghai Research Institute of Petrochemical Technology SINOPEC, Shanghai 201208, China
Yinghong Yue: Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200433, China
Weimin Yang: Shanghai Research Institute of Petrochemical Technology SINOPEC, Shanghai 201208, China
Weiming Hua: Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200433, China
Zi Gao: Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200433, China

DOI: https://doi.org/10.3390/catal6110171
Journal volume & issue: Vol. 6, no. 11
p. 171

Abstract

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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.

Published in Catalysts

ISSN: 2073-4344 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology: Chemical technology; Science: Chemistry
Website: https://www.mdpi.com/journal/catalysts

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