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首页> 外文期刊>Кинетика и катализ >SYNTHESIS OF ZEOLITE IM-5 UNDER ROTATING AND STATIC CONDITIONS AND THE CATALYTIC PERFORMANCE OF MO/H-IM-5 CATALYST IN METHANE NON-OXIDATIVE AROMATIZATION
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SYNTHESIS OF ZEOLITE IM-5 UNDER ROTATING AND STATIC CONDITIONS AND THE CATALYTIC PERFORMANCE OF MO/H-IM-5 CATALYST IN METHANE NON-OXIDATIVE AROMATIZATION

机译：旋转和静态条件下IM-5沸石的合成及MO / H-IM-5催化剂在甲烷非氧化芳构化反应中的催化性能

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摘要

The hydrothermal crystallization of zeolite IM-5 was investigated under rotating (denoted as IM-5-R) and static (denoted as IM-5-S) synthesis conditions. Mo-modified catalysts (Mo-IM-5-R and Mo-IM-5-S) were prepared for the methane non-oxidative aromatization. The physical properties and acidities of the samples were characterized by XRD, SEM, BET and IR spectroscopy. Compared with Mo-IM-5-S, the Mo-IM-5-R catalyst showed both a higher conversion of methane and higher selectivity to benzene in methane aromatization. A higher catalytic activity of Mo-IM-5-R may be attributed to the preferable textural properties and acidities of zeolite IM-5-R. Moreover, the catalyst prepared by the physical mixing method exhibited lower initial activity, but better stability for methane aromatization than that prepared by the impregnation method.
机译：在旋转（表示为IM-5-R）和静态（表示为IM-5-S）合成条件下研究了IM-5沸石的水热结晶。制备了用于甲烷非氧化芳构化的Mo改性催化剂（Mo-IM-5-R和Mo-IM-5-S）。样品的物理性质和酸度通过XRD，SEM，BET和IR光谱表征。与Mo-IM-5-S相比，Mo-IM-5-R催化剂在甲烷芳构化中显示出更高的甲烷转化率和更高的对苯选择性。 Mo-IM-5-R的较高的催化活性可以归因于沸石IM-5-R的优选的质构性质和酸度。此外，通过物理混合方法制备的催化剂表现出较低的初始活性，但是与通过浸渍方法制备的催化剂相比，具有更好的甲烷芳构化稳定性。

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