| Study on Bifunctionality of Mo/HZSM-5 Catalysts for Methane Dehydro-Aromatization under Non-oxidative Condition |
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| 引用本文： | Lingling Su,Yide Xu,Xinhe BaoState Key Laboratory of Catalysis,Dalian Institute of Chemical Physics,Chinese Academy of Sciences,457 Zhongshan Road,P. O. Box 110,Dalian,116023,China[Manuscript received June 10,2002, revised July 20,2002]. Study on Bifunctionality of Mo/HZSM-5 Catalysts for Methane Dehydro-Aromatization under Non-oxidative Condition[J]. 天然气化学杂志, 2002, 0(Z1) |
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| 作者姓名： | Lingling Su Yide Xu Xinhe BaoState Key Laboratory of Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road P. O. Box 110 Dalian 116023 China[Manuscript received June 10 2002 revised July 20 2002] |
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| 摘 要： | The optimum Mo/[H~+] ratio per unit cell of the active precursors in Mo/HZSM-5 catalysts for methane dehydro-aromatization, measured by 1H MAS NMR, was found to be about 1 when adjusting the acid sites by altering either the SiO2/Al2O3 ratios or the Mo loading. This implies that a concerted interaction between the Mo species and the Bronsted acid sites probably features the bifunctionality of the Mo/HZSM-5 catalyst. On the other hand, it was found that the driving force for Mo species to move into the HSZM-5 zeolite channels and the interaction between the Mo species and the Bronsted acid sites are closely and proportionably related with the amount of Bronsted acid sites per unit cell.
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Study on Bifunctionality of Mo/HZSM-5 Catalysts for Methane Dehydro-Aromatization under Non-oxidative Condition |
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| Lingling Su,Yide Xu,Xinhe BaoState Key Laboratory of Catalysis,Dalian Institute of Chemical Physics,Chinese Academy of Sciences, Zhongshan Road,P. O. Box ,Dalian,,China[Manuscript received June ,, revised July ,]. Study on Bifunctionality of Mo/HZSM-5 Catalysts for Methane Dehydro-Aromatization under Non-oxidative Condition[J]. Journal of Natural Gas Chemistry, 2002, 0(Z1) |
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| Authors: | Lingling Su Yide Xu Xinhe BaoState Key Laboratory of Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences Zhongshan Road P. O. Box Dalian China[Manuscript received June revised July ] |
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| Abstract: | The optimum Mo/[H~+] ratio per unit cell of the active precursors in Mo/HZSM-5 catalysts for methane dehydro-aromatization, measured by1H MAS NMR, was found to be about 1 when adjusting the acid sites by altering either the SiO2/Al2O3 ratios or the Mo loading. This implies that a concerted interaction between the Mo species and the Bronsted acid sites probably features the bifunctionality of the Mo/HZSM-5 catalyst. On the other hand, it was found that the driving force for Mo species to move into the HSZM-5 zeolite channels and the interaction between the Mo species and the Bronsted acid sites are closely and proportionably related with the amount of Bronsted acid sites per unit cell. |
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| Keywords: | methane dehydro-aromatization Mo/HZSM-5 SiO2/Al2O3 ratio bifunctionality |
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