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Transactions of Tianjin University

, Volume 25, Issue 1, pp 9–22 | Cite as

Facile One-Pot Synthesis of ZSM-5 Aggregates with Inter- and Intra-Crystalline Mesopores for Methanol to Gasoline Conversion

  • Yaquan WangEmail author
  • Chunyang Fan
  • Hongyao Li
  • Xiao Wang
  • Fanjun Meng
  • Chao Sun
  • Liying Sun
Research Article
  • 140 Downloads

Abstract

ZSM-5 aggregates consisting of superfine and hierarchical nanocrystals (combined with micropores and intra-crystalline mesopores) with an average size of 30 nm were prepared through one-pot synthesis with the assistance of anionic polyacrylamide (APAM). The resultant zeolites (AHN-ZSM-5) were characterized by XRD, ICP-OES, SEM, TEM, BET, NH3-TPD, Py-IR, and TG analyses and evaluated in the methanol to gasoline (MTG) reaction. Characterization results show that the hierarchical ZSM-5 aggregates possessed two kinds of mesopores, namely inter- and intra-crystalline mesopores. The amount of APAM considerably influenced the mesoporosity and textural properties of AHN-ZSM-5 zeolites. With the addition of APAM in the synthesis, the AHN-ZSM-5 zeolites exhibited large mesopore volume, large external surface area, and appropriate acidity. When applied in the MTG reaction, AHN-ZSM-5 demonstrated a catalytic lifetime that was 1.6 times longer than that of conventional ZSM-5 synthesized in the absence of APAM.

Keywords

Hierarchical nanocrystal Intra-crystalline mesopore ZSM-5 aggregate Anionic polyacrylamide Methanol to gasoline 

Notes

Acknowledgements

This work was supported by the National Natural Science Foundation of China (No. 21276183).

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Copyright information

© Tianjin University and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Yaquan Wang
    • 1
    Email author
  • Chunyang Fan
    • 1
  • Hongyao Li
    • 1
  • Xiao Wang
    • 1
  • Fanjun Meng
    • 1
  • Chao Sun
    • 1
  • Liying Sun
    • 1
  1. 1.Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and TechnologyTianjin UniversityTianjinChina

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