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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
作者單位：

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

投稿時間：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.

關鍵詞

    Metathesis, WO3/SiO2 catalysts, pore structure, coke formation
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