Methane Aromatization in the Absence of Oxygen over Molded MoO3/ZSM-5: Influence of Binders and Molding Methods

能源化学(英文) ›› 2010, Vol. 19 ›› Issue (6): 0-0.

• Articles •

Methane Aromatization in the Absence of Oxygen over Molded MoO3/ZSM-5: Influence of Binders and Molding Methods

Dongmei Ren¹,李钢²,Xiangsheng Wang³,Xiaojing Cheng²,Huayun Long²,Lidong Chen²

1. 辽宁省大连市甘井子区凌工路二号大连理工大学化工与环境生命学部工业催化系邮编 116024 王祥生收
2. State Key Laboratory of Fine Chemicals, Department of Catalytical Chemistry and Engineering, Dalian University of Technology, Dalian 116012, PR China
3. 辽宁省大连市甘井子区凌工路二号大连理工大学化工与环境生命学部工业催化系

收稿日期:2010-05-26 修回日期:2010-09-05 出版日期:2010-11-30 发布日期:2010-11-25
通讯作者: Dongmei Ren

Methane Aromatization in the Absence of Oxygen over Molded MoO3/ZSM-5: Influence of Binders and Molding Methods

Received:2010-05-26 Revised:2010-09-05 Online:2010-11-30 Published:2010-11-25

摘要/Abstract

摘要： The influence of binders and molding methods on the performance of MoO3/ZSM-5 used for methane aromatization without O2 is investigated. SEM, NH3-TPD, and FT-IR of adsorbed pyridine, low-temperature N2 adsorption, adsorption of cyclohexane and XPS were employed to characterize the catalysts. Results reveal that silica is a suitable binder for the catalyst due to its appropriate acidity. The laminar catalyst with an inert ball core and a MoO3/ZSM-5 lamina shell 0.1-0.2 mm in thickness, showed a better performance than the extruded catalyst. The improved activity of the laminar catalyst could be attributed to the easy carbonization of Mo species and short diffusion lengths of the product.

关键词: methane, aromatization, extruded catalyst, laminar catalyst, ZSM-5, molybdenum, methane, aromatization, extruded catalyst, laminar catalyst, ZSM-5, molybdenum

Abstract: The influence of binders and molding methods on the performance of MoO3/ZSM-5 used for methane aromatization without O2 is investigated. SEM, NH3-TPD, and FT-IR of adsorbed pyridine, low-temperature N2 adsorption, adsorption of cyclohexane and XPS were employed to characterize the catalysts. Results reveal that silica is a suitable binder for the catalyst due to its appropriate acidity. The laminar catalyst with an inert ball core and a MoO3/ZSM-5 lamina shell 0.1-0.2 mm in thickness, showed a better performance than the extruded catalyst. The improved activity of the laminar catalyst could be attributed to the easy carbonization of Mo species and short diffusion lengths of the product.

Dongmei Ren 李钢 Xiangsheng Wang Xiaojing Cheng Huayun Long Lidong Chen. Methane Aromatization in the Absence of Oxygen over Molded MoO3/ZSM-5: Influence of Binders and Molding Methods [J]. 能源化学(英文), 2010, 19(6): 0-0.

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Methane Aromatization in the Absence of Oxygen over Molded MoO3/ZSM-5: Influence of Binders and Molding Methods

Methane Aromatization in the Absence of Oxygen over Molded MoO3/ZSM-5: Influence of Binders and Molding Methods

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