Methane aromatization in the absence of oxygen over extruded and molded MoO_3/ZSM-5 catalysts:Influences of binder and molding method
Methane aromatization in the absence of oxygen over extruded and molded MoO_3/ZSM-5 catalysts:Influences of binder and molding method作者机构:State Key Laboratory of Fine Chemicals Dalian University of Technology Department of Catalytical Chemistry and Engineering Dalian 116012 Liaoning China Faculty of Chemistry and Chemical Engineering Bohai University Jinzhou 121000 Liaoning China School of Chemistry and Chemical Engineering Xinjiang University Urumqi 830046 Xinjiang China
出 版 物:《Journal of Natural Gas Chemistry》 (天然气化学杂志(英文版))
年 卷 期:2010年第19卷第6期
页 面:646-652页
核心收录:
学科分类:080503[工学-材料加工工程] 081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 0805[工学-材料科学与工程(可授工学、理学学位)]
基 金:supported by the National Basic Research Program of China(Grant 2005CB 221405)
主 题:methane aromatization extruded catalyst laminar catalyst ZSM-5 molybdenum
摘 要:The influences of binder and molding method on the catalytic performance of methane aromatization in the absence of O2 over MoO3/ZSM-5 catalysts were ***,NH3-TPD,FT-IR of adsorbed pyridine,N2 adsorption-desorption,cyclohexane adsorption and XPS were employed to characterize the physical and chemical properties of the *** was found that SiO2 was a suitable binder for the catalyst due to its appropriate weak *** laminar catalyst comprising of an inert spherical core and a MoO3/ZSM-5 laminar shell with 0.1 0.2 mm in thickness showed a better catalytic performance than the extruded *** improved activity of the laminar catalyst could be attributed to the easy carbonization of Mo species and the quick removal of reaction products from the catalyst surface.