Two-stage glucose-assisted crystallization of ZSM-5 to improve methanol to propylene (MTP)

Rui Feng, Xixi Wang, Jiawei Lin, Zheng Li, Kun Hou, Xinlong Yan, Xiaoyan Hu, Zifeng Yan, Mark J. Rood

Research output: Contribution to journalArticlepeer-review


Improving propylene selectivity and the lifetime of ZSM-5 catalyst is of great significance for methanol to propylene (MTP) reaction. Hierarchical ZSM-5 zeolites were synthesized by a two-stage crystallization method using glucose as a second template. The structural and surface properties and the morphologies of the prepared samples were characterized by low-temperature N2 sorption, XRD, 27Al and 29Si NMR, FTIR using pyridine probe molecule, NH3-TPD, SEM, and TEM analysis. The two-stage glucose-assisted crystallized ZSM-5 zeolites exhibited large prismatic crystallites, increased intracrystalline mesopores, and reduced acid amount and acid strength, compared with the conventional one-stage crystallized ZSM-5. Methanol to propylene (MTP) reaction at 450 °C and methanol WHSV of 3.8 h−1 revealed that the newly prepared ZSM-5 catalyst, such as ZSM-5-T3, exhibited highest propylene selectivity of 45.2%, propylene to ethylene ratio of 8.4, and C2 =-C4 = selectivity of 63.9%.

Original languageEnglish (US)
Pages (from-to)57-66
Number of pages10
JournalMicroporous and Mesoporous Materials
StatePublished - Nov 1 2018


  • Acid sites
  • Glucose
  • Methanol to propylene
  • Two-stage crystallization
  • ZSM-5

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials


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