MFI vs. FER zeolite during methanol dehydration to dimethyl ether: The crystal size plays a key role

被引：32

作者：

Catizzone, Enrico ^{[1
,2
]}

Aloise, Alfredo ^{[1
]}

Giglio, Emanuele ^{[1
]}

Ferrarelli, Giorgia ^{[1
]}

Bianco, Micaela ^{[1
,3
]}

Migliori, Massimo ^{[1
]}

Giordano, Girolamo ^{[1
]}

机构：

[1] Univ Calabria, Lab Catalysis & Ind Chem, Via P Bucci 1, I-87036 Arcavacata Di Rende, Italy

[2] Italian Natl Agcy New Technol Energy & Sustainabl, ENEA, Trisaia Res Ctr, I-75026 Rotondella, Italy

[3] Waste Methane Srl, Via M Polo, Arcavacata Di Rende, CS, Italy

来源：

CATALYSIS COMMUNICATIONS | 2021年 / 149卷

关键词：

Methanol conversion; Dimethyl ether; Molecular sieves; Crystal size; Nanosized zeolites; Coke formation; PHASE DEHYDRATION; DME; CATALYSTS; FERRIERITE; DEPOSITION; ALUMINA; OLEFINS; SYNGAS;

D O I：

10.1016/j.catcom.2020.106214

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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 microsized 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.

引用

页数：7

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