Chemical Research in Chinese Universities ›› 2019, Vol. 35 ›› Issue (5): 866-873.doi: 10.1007/s40242-019-9120-7

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Synthesis of Pt-SnOx/TS-1@SBA-16 Composites and Their High Catalytic Performance for Propane Dehydrogenation

LI Hongda1, ZHAO Zhen1,2, LI Jiacheng1, LI Jianmei1, ZHAO Linlin2, SUN Jiachen1, FAN Xiaoqiang2   

  1. 1. State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, P. R. China;
    2. Institute of Catalysis for Energy and Environment, College of Chemistry and Chemical Engineering, Shenyang Normal University, Shenyang 110034, P. R. China
  • Received:2019-04-24 Online:2019-10-01 Published:2019-09-24
  • Contact: ZHAO Zhen E-mail:zhenzhao@cup.edu.cn
  • Supported by:
    Supported by the National Natural Science Foundation of China(Nos.21845201, 21761162016, 21603148).

Abstract: A novel composite material of TS-1@SBA-16 was synthesized by enwrapping TS-1 zeolite crystals with mesoporous SBA-16 silica. This composite was used as catalyst support for loading Pt-SnOx in the propane dehydrogenation(PDH) reaction. Catalysts were characterized by means of N2 adsorption-desorption, XRD, SEM, TEM, XPS, UV-Vis, and Raman spectroscopy. The effect of different contents of TS-1 on PDH was investigated, and the optimal amount of TS-1 was determined to be 10%. The catalyst with TS-1 content of 10% showed the highest PDH activity and the initial conversion of propane over it can achieve 54.5%, higher than those over TS-1 or SBA-16-supported ones. The superior catalytic performance of Pt-SnOx/TS-1@SBA-16 is related to the synergistic effect of the excellent mass transfer performance through the hierarchical porous structure, suitable acid acidity and electronic effect of Ti species.

Key words: Catalyst, Pt-SnOx, Propane, Dehydrogenation, TS-1 zeolite, Micro-and meso-porous material