| Non-Oxidative Aromatization of CH4-C3H8 La-Promoted Zn/HZSM-5 Catalysts |
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| 作者姓名： | Lihe Zheng Dong Xuan Jianjun Guo Hui Lou Xiaoming Zheng |
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| 作者单位： | Institute of Catalysis, Chemistry Department, Zhejiang University, Hangzhou 310028, China |
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| 基金项目： | This work is supported by the National Science Foundation of China （Grant Nos 20343002; 20433030） and PetroChina. |
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| 摘 要： | The non-oxidative aromatization of mixed CH4 with C3H8 over La-promoted Zn/HZSM-5 catalysts was studied in a fixed-bed reactor at 823 K with space velocity 600 h^-1 and CH4/C3H8 （mol ratio）=5：l. The propane conversion and the aromatic selectivities were up to 99% and 60% over the catalyst respectively, while methane conversion had an induction period with the highest conversion of 30%. The structure and surface acidity of the catalysts were characterized by XRD, NH3-TPD and TG-DTA. The influences of reaction and regenerative conditions on the activity and selectivity were also investigated.
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| 收稿时间： | 2005-10-25 |
| 修稿时间： | 2005-12-30 |
Non-Oxidative Aromatization of CH4-C3H8 over La-Promoted Zn/HZSM-5 Catalysts |
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| Lihe Zheng Dong Xuan Jianjun Guo Hui Lou Xiaoming Zheng.Non-Oxidative Aromatization of CH4-C3H8 La-Promoted Zn/HZSM-5 Catalysts[J].Journal of Natural Gas Chemistry,2006,15(1):52-57. |
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| Authors: | Lihe Zheng Dong Xuan Jianjun Guo Hui Lou Xiaoming Zheng |
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| Institution: | Institute of Catalysis, Chemistry Department, Zhejiang University, Hangzhou 310028, China |
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| Abstract: | The non-oxidative aromatization of mixed CH4 with C3H8 over La-promoted Zn/HZSM-5 catalysts was studied in a fixed-bed reactor at 823 K with space velocity 600 h−1 and CH4/C3H8 (mol ratio)=5:1. The propane conversion and the aromatic selectivities were up to 99% and 60% over the catalyst respectively, while methane conversion had an induction period with the highest conversion of 30%. The structure and surface acidity of the catalysts were characterized by XRD, NH3-TPD and TG-DTA. The influences of reaction and regenerative conditions on the activity and selectivity were also investigated. |
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| Keywords: | aromatization methane propane regeneration La Zn HZSM-5 |
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