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Citation: TONG Kai, LI Jun-hui, XI Zhi-wen, ZHU Zhi-rong. Study of methanol shape-selective aromatization over ZnO/SiO2/ZSM-5 modified with mental oxide and silicon deposition[J]. Journal of Fuel Chemistry and Technology, ;2015, 43(2): 221-227. shu

Study of methanol shape-selective aromatization over ZnO/SiO2/ZSM-5 modified with mental oxide and silicon deposition

  • 1.

    Functional Material and Green Catalysis Laboratory, Department of Chemistry of Tongji University, Shanghai 200092, China

  • Corresponding author: ZHU Zhi-rong, 
  • Received Date: 15 September 2014
    Available Online: 13 November 2014

    Fund Project: 国家自然科学基金石油化工联合基金(U13171009) (U13171009)上海市重点基础研究项目(11JC1412500) 。 (11JC1412500)

  • ZnO/SiO2/ZSM-5 zeolites were prepared from ZSM-5 by vacuum metal impregnation of metallic oxides and silicon deposition. The resulted zeolite were characterized by XRD, BET, NH3-TPD, SEM and TEM. Furthermore, the influence of silicon deposition time and the content of impregnated ZnO to the selectivity and yield of p-xylene (PX) on the reaction of aromatization of methanol was investigated. The results indicated that by twice silicon deposition and 2.0% ZnO, the modified ZSM-5 had the highest PX selectivity. The yield of PX could reach up to 28% at 420 ℃, 0.2 MPa and 1.25 h-1 of methanol WHSV.
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