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

被引：22

作者：

Wei, Chunling ^{[1
,2
]}

Xue, Fangqi ^{[1
]}

Miao, Changxi ^{[2
]}

Yue, Yinghong ^{[1
]}

Yang, Weimin ^{[2
]}

Hua, Weiming ^{[1
]}

Gao, Zi ^{[1
]}

机构：

[1] Fudan Univ, Dept Chem, Shanghai Key Lab Mol Catalysis & Innovat Mat, Shanghai 200433, Peoples R China

[2] Shanghai Res Inst Petrochem Technol SINOPEC, Shanghai 201208, Peoples R China

来源：

CATALYSTS | 2016年 / 6卷 / 11期

基金：

中国国家自然科学基金;

关键词：

dehydrogenation; isobutane; carbon dioxide; vanadia; SBA-15; supported catalyst; OXIDATIVE DEHYDROGENATION; ETHYLBENZENE DEHYDROGENATION; SUPPORTED CATALYSTS; MESOPOROUS MCM-41; LIGHT ALKANES; PROPANE; ALUMINA; CHROMIUM; ETHYLENE; PROPENE;

D O I：

10.3390/catal6110171

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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 N-2 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.

引用

页数：13

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