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Petroleum Science >2013, Issue 1: 112-119 DOI: https://doi.org/10.1007/s12182-013-0257-6

Influence of catalyst support structure on ethene/decene metathesis and coke formationover WO₃/SiO₂ catalyst Open Access

文章信息

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作者：Zheng Min,Chen Sheng-Li,Zhang Jun-Hui,Liu Yan,Sang Lei,You Ju and Wang Xiao-Dong

作者单位：

State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China;State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China;State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China;State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China;State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China;State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China;State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China

投稿时间：2011-09-07

引用方式：Zheng, M., Chen, SL., Zhang, JH. et al. Pet. Sci. (2013) 10: 112. https://doi.org/10.1007/s12182-013-0257-6

文章摘要

8wt%WO₃/SiO₂ metathesis (disproportionation) catalysts with different pore structures were prepared by the incipient-wetness-impregnation method. The as-synthesized catalysts were characterized by N2 adsorption-desorption, scanning electron microscopy (SEM), X-ray diffraction (XRD), UV-visible diffuse reflectance spectroscopy (DRS) and scanning transmission electron microscopy–high-angle annular dark field (STEM HAADF). The results of STEM HAADF showed that WO₃ species were not uniformly distributed on the SiO₂ support. The experimental results of 8wt%WO₃/SiO₂ performance in ethene/decene metathesis revealed that the catalytic effect of 8wt%WO₃/SiO₂ catalyst and coke formation over it were closely related to the support pore structure: The 8wt%WO₃/SiO₂ catalyst with a more complicated pore structure showed better catalytic performance but the coke deposition rate was also faster.

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