1. MFI vs. FER zeolite during methanol dehydration to dimethyl ether: The crystal size plays a key role
- Author
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Enrico Catizzone, Alfredo Aloise, Emanuele Giglio, Giorgia Ferrarelli, Micaela Bianco, Massimo Migliori, and Girolamo Giordano
- Subjects
Methanol conversion ,Dimethyl ether ,Molecular sieves ,Crystal size ,Nanosized zeolites ,Coke formation ,Chemistry ,QD1-999 - Abstract
FER-type zeolite was recently recognized as good catalyst for DME synthesis via methanol dehydration or one-pot CO2 hydrogenation, in terms of DME selectivity, stability and coke formation. In this research, we investigated the role of crystal size of both FER- and MFI-type zeolites on catalysis of methanol dehydration to DME reaction. The results show that FER-type zeolites, both micro- and nano-sized, exhibit better performances than micro-sized MFI-type zeolite. On the contrary, the application of nano-sized MFI allows to obtain a DME selectivity similar to FER, but with higher DME production rate and a lower coke deposition.
- Published
- 2021
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