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Synthesis of Mo/TNU-9 (TNU-9 Taejon National University No. 9) catalyst and its catalytic performance in methane non-oxidative aromatization

Author

Listed:
  • Liu, Heng
  • Yang, Shuang
  • Wu, Shujie
  • Shang, Fanpeng
  • Yu, Xiaofang
  • Xu, Chen
  • Guan, Jingqi
  • Kan, Qiubin

Abstract

Mo-modified catalysts of Mo/TNU-9 were prepared for the non-oxidative aromatization of methane. The effects of different Si/Al ratios, Mo loadings and temperatures on the catalytic performance of Mo/TNU-9 catalysts were also investigated. Furthermore, for comparison, Mo/ZSM-5 was synthesized for the same reaction. The physical properties and acidities of the samples were characterized by XRD (X-ray diffraction), SEM (scanning electron microscopy), BET (Brunauer–Emmett–Teller method) and IR (infrared) spectroscopy. The best conditions for methane aromatization with Mo/TNU-9 are as follows: Si/Al ratio = 50, 6 wt.% MoO3 loading, and reaction temperature = 973 K. Compared with Mo/ZSM-5, the Mo/TNU-9 catalyst showed both a higher conversion of methane and higher selectivity to benzene. In addition, the stability of Mo/TNU-9 was also better than that of Mo/ZSM-5. The superior catalytic behavior of Mo/TNU-9 may be attributed to its unique three-dimensional 10-member-ring channel structure with the presence of large 12-member-ring cavities.

Suggested Citation

  • Liu, Heng & Yang, Shuang & Wu, Shujie & Shang, Fanpeng & Yu, Xiaofang & Xu, Chen & Guan, Jingqi & Kan, Qiubin, 2011. "Synthesis of Mo/TNU-9 (TNU-9 Taejon National University No. 9) catalyst and its catalytic performance in methane non-oxidative aromatization," Energy, Elsevier, vol. 36(3), pages 1582-1589.
    • Handle: RePEc:eee:energy:v:36:y:2011:i:3:p:1582-1589
    DOI: 10.1016/j.energy.2010.12.073
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    References listed on IDEAS

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