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| Coupling dehydrogenation of isobutane in the presence of carbon dioxide over chromium oxide supported on active carbon |
| Jian Fei Dinga,b, Zhang Feng Qina, Xue Kuan Lia, Guo Fu Wanga, Jian Guo Wanga |
a State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, P. O. Box 165, Taiyuan 030001, China;
b Graduate School of the Chinese Academy of Sciences, Beijing 100049, China |
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Abstract The dehydrogenation of isobutane (IB) to produce isobutene coupled with reverse water gas shift in the presence of carbon dioxide was investigated over the catalyst Cr2O3 supported on active carbon (Cr2O3/AC). The results illustrated that isobutane conversion and isobutene yield can be enhanced through the reaction coupling in the presence of carbon dioxide. Moreover, carbon dioxide can partially eliminate carbonaceous deposition on the catalyst and keep the active phase (Cr2O3), which are then helpful to alleviate the catalyst deactivation.
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Received: 21 March 2008
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| Fund:The authors are grateful for the financial support of the State Key Fundamental Research Project (2006CB202504) and the National Natural Science Foundation of China (No. 20676140) and Natural Science Foundation of Shanxi Province. |
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Corresponding Authors:
Jian Guo Wang,iccjgw@sxicc.ac.cn
E-mail: iccjgw@sxicc.ac.cn
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