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

被引：40

作者：

Liu, Heng ^{[1
]}

Yang, Shuang ^{[1
]}

Wu, Shujie ^{[1
]}

Shang, Fanpeng ^{[1
]}

Yu, Xiaofang ^{[1
]}

Xu, Chen ^{[1
]}

Guan, Jingqi ^{[1
]}

Kan, Qiubin ^{[1
]}

机构：

[1] Jilin Univ, Coll Chem, Changchun 130023, Peoples R China

来源：

ENERGY | 2011年 / 36卷 / 03期

关键词：

TNU-9; Methane aromatization; Molybdenum; ZSM-5; DEHYDRO-AROMATIZATION; MO/HZSM-5; CATALYSTS; MAS NMR; CONVERSION; BENZENE; DEHYDROGENATION; ZEOLITE; ACIDITY; ABSENCE; OXYGEN;

D O I：

10.1016/j.energy.2010.12.073

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Mo-modified catalysts of Mo/TNU-9 were prepared for the non-oxidative aromatization of methane. The effects of different Si/AI 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/AI 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. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：1582 / 1589

页数：8

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