Dehydrogenation of Propane to Propene over Ga2O3/HZSM-5 Catalysts

作者：Ren Ying-Jie; Hua Wei-Ming; Yue Ying-Hong^*; Gao Zi

来源：Chemical Journal of Chinese Universities, 2009, 30(6): 1162-1167.

• Ga2O3/HZSM-5
• Propane
• Dehydrogenation
• Carbon dioxide
• Stability

Dehydrogenation of propane to propene in the presence of CO2 was carried out over Ga2O3 catalysts supported on HZSM-5 with different Si/Al molar ratios. The structural and acidic properties were characterized by XRD, XRF, N-2 adsorption, Al-27 MAS NMR, NH3-TPD and model acid-catalyzed reaction. It is found that the stability of supported Ga2O3 catalysts for the reaction improves with increasing Si/Al molar ratio of HZSM-5 support, which is thought to be caused by the decrease of the acidity of the catalysts, resulting in the suppression of the side reactions. The stability can also be enhanced by the mesopores generated by steaming, due to the promotion of the diffusion and desorption of the propene.

• 出版日期2009-6-10
• 单位复旦大学