Product distribution and catalytic performance of nano-sized H-ZSM-5 zeolites in the methanol-to-aromatics (MTA) reaction |
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| Authors: | Lingzhi Yang Zhiyuan Liu Zhi Liu Wenyong Peng Chenguang Liu |
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| Affiliation: | State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum (East China), Qingdao, Shandong, China |
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| Abstract: | A study of the effect of SiO2/Al2O3 molar ratio on the activity and selectivity of H-ZSM-5 catalyst in the reaction of methanol to aromatics (MTA) has been carried out in this work. Aluminosilicate zeolite (ZSM-5) zeolites with different SiO2/Al2O3 molar ratios were successfully synthesized by the hydrothermal method. The SiO2/Al2O3 molar ratio of the prepared ZSM-5 zeolite particles could be easily controlled by changing the ratio of tetraethylorthosilicate to aluminum nitrate nonahydrate. The effect of SiO2/Al2O3 molar ratio on the activity of nano-sized H-ZSM-5 zeolites in the MTA reaction was studied. The H-ZSM-5 zeolite catalyst with low SiO2/Al2O3 molar ratios shows remarkable selectivity toward aromatics and benzene, toluene, and xylene (BTX) in the MTA reaction. |
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| Keywords: | aromatics BTX methanol nano-sized H-ZSM-5 SiO2/Al2O3 molar ratio |
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