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题名: Effect of Mg addition on catalytic performance of Mo/ZSM-5 catalyst for methane aromatization
作者: Bai, J;  Liu, SL;  Xie, SJ;  Xu, LY;  Lin, LW
关键词: molybdenum ;  ZSM-5 zeolite ;  magnesium ;  modification ;  methane ;  aromatization
刊名: CHINESE JOURNAL OF CATALYSIS
发表日期: 2004
卷: 25, 期:1, 页:70-74
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Applied ;  Chemistry, Physical ;  Engineering, Chemical
研究领域[WOS]: Chemistry ;  Engineering
英文摘要: The effect of Mg addition no the Mo/ZSM-5 catalyst Was investigated by XRD, nitrogen adsorption and pyridine FTAR methods. The FTAR spectra of pyridine adsorbed on Mo-Mg/ZSM-5 indicated that the ratio of Lewis acid sites to Bronsted acid sites on the catalyst samples increased with the increase of Mg loading. When Mo-Mg/ZSM-5 was used in methane dehydro-aromatization, the carbon deposition on the catalyst decreased with the increase of Mg loading, and only the stability of 6% Mo-0.75% Mg/ZSM-5 was higher than that of 6% Mo/ZSM-5. This illuminated that the catalyst stability can be enhanced by optimizing the ratio of Lewis acid sites to Bronsted acid sites with medium/strong strength in the presence of enough Bronsted acid sites.
关键词[WOS]: ZEOLITE CATALYSTS ;  FT-IR ;  MO/HZSM-5 ;  ABSENCE ;  DEHYDROGENATION ;  HZSM-5 ;  CONVERSION ;  ACIDITY ;  BENZENE ;  OXYGEN
语种: 英语
WOS记录号: WOS:000188980500016
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/139382
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Liaoning, Peoples R China

Recommended Citation:
Bai, J,Liu, SL,Xie, SJ,et al. Effect of Mg addition on catalytic performance of Mo/ZSM-5 catalyst for methane aromatization[J]. CHINESE JOURNAL OF CATALYSIS,2004,25(1):70-74.
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