Citation: Jian Fei Ding, Zhang Feng Qin, Xue Kuan Li, Guo Fu Wang, Jian Guo Wang. Coupling dehydrogenation of isobutane in the presence of carbon dioxide over chromium oxide supported on active carbon[J]. Chinese Chemical Letters, ;2008, 19(9): 1059-1062. doi: 10.1016/j.cclet.2008.05.041 shu

Coupling dehydrogenation of isobutane in the presence of carbon dioxide over chromium oxide supported on active carbon

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

Received Date: 21 March 2008

Fund Project: 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.

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.
- Dehydrogenation,
- Isobutane,
- Carbon dioxide,
- Isobutene,
- Reaction coupling,
- Cr₂O₃/AC
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