Dehydrogenation of propane over In(2)O(3)-Al(2)O(3) mixed oxide in the presence of carbon dioxide

作者：Chen Miao; Xu Jie; Cao Yong^*; He He Yong; Fan Kang Nian; Zhuang Ji Hua

来源：Journal of Catalysis, 2010, 272(1): 101-108.

DOI：10.1016/j.jcat.2010.03.007

• Propane
• Propylene
• Dehydrogenation
• In(2)O(3)-Al(2)O(3)
• Carbon dioxide
• In(0)

Dehydrogenation of propane (PDH) to propylene in the presence of CO(2) was performed over binary In(2)O(3)-Al(2)O(3) mixed oxides prepared by alcoholic coprecipitation. Synergistic effect of different composition on the catalytic performance has been observed. Characterization by X-ray diffraction and X-ray photoelectron spectroscopy revealed that the combination of the two components can result in significant modification in the surface properties and bulk dispersion of the In(2)O(3) phase, which in turn leads to a higher reducibility of the In-Al-O composite. A correlation between the temperature-programmed reduction data and the PDH activity for In(2)O(3)-Al(2)O(3) revealed that the creation of surface metallic indium species during the reaction is crucial for the dehydrogenation performance. The promoting effect of CO(2) on the yield of propylene has been attributed to a facilitation of simple dehydrogenation by its coupling with the reverse water gas shift reaction based on the results from temperature-programmed reaction of CO(2) with H(2).

• 出版日期2010-5-25
• 单位复旦大学