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Open AccessArticle

Synthesis of ZSM-5 Zeolite Using Coal Fly Ash as an Additive for the Methanol to Propylene (MTP) Reaction

Key Laboratory of Coal Processing and Efficient Utilization (Ministry of Education), School of Chemical Engineering, China University of Mining & Technology, Xuzhou 221116, China
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Catalysts 2019, 9(10), 788; https://doi.org/10.3390/catal9100788
Received: 4 September 2019 / Revised: 15 September 2019 / Accepted: 18 September 2019 / Published: 22 September 2019
(This article belongs to the Special Issue Synthesis and Application of Zeolite Catalysts)
Using ZSM-5 zeolites as catalysts for the methanol to propylene (MTP) reaction is being widely investigated and has been industrially applied. In this study, pure ZSM-5 zeolite was successfully synthesized by a direct hydrothermal method using the fly ash of coal gasification as an additional raw material. Various analysis methods such as X-ray diffraction, N2 sorption, scanning electron microscopy, and infrared spectroscopy, were employed to characterize the physicochemical properties of parent and modified zeolites. Then, the prepared ZSM-5 catalysts were tested in the MTP reaction. The results showed that pure ZSM-5 could be directly synthesized in the optimized conditions using fly ash as additional silicon and aluminum sources, and those ZSM-5 catalysts turned out to be candidate catalysts for the MTP reaction. Whereas their catalytic lifetimes were not good enough due to the strong acid sites and needed improving. View Full-Text
Keywords: ZSM-5; coal fly ash; alkaline treatment; methanol to propylene ZSM-5; coal fly ash; alkaline treatment; methanol to propylene
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Feng, R.; Chen, K.; Yan, X.; Hu, X.; Zhang, Y.; Wu, J. Synthesis of ZSM-5 Zeolite Using Coal Fly Ash as an Additive for the Methanol to Propylene (MTP) Reaction. Catalysts 2019, 9, 788.

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