Study of methanol shape-selective aromatization over ZnO/SiO<sub>2</sub>/ZSM-5 modified with mental oxide and silicon deposition

TONG Kai; LI Jun-hui; XI Zhi-wen; ZHU Zhi-rong

Volume 43 Issue 02

Feb. 2015

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Article Navigation > Journal of Fuel Chemistry and Technology > 2015 > 43(02): 221-227

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(02): 221-227.

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(02): 221-227.

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

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

Received Date: 2014-09-15
Rev Recd Date: 2014-11-13
Publish Date: 2015-02-28

Abstract

Abstract

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.
- ZSM-5,
- methanol,
- aromatization,
- shape-selective,
- p-xylene

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References(16)

References

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