Silver-Modified η-Al2O3 Catalyst for DME Production

Ahmed Ibrahim Osman Ahmed; Jehad Abu-Dahrieh; Adel Abdelkader; Nourhan Hassan; Fathima Laffir; Mathew McLaren; David Rooney

doi:10.1021/acs.jpcc.7b04697

Silver-Modified η-Al2O3 Catalyst for DME Production

Ahmed Ibrahim Osman Ahmed, Jehad Abu-Dahrieh, Adel Abdelkader, Nourhan Hassan, Fathima Laffir, Mathew McLaren, David Rooney

School of Chemistry and Chemical Engineering

Research output: Contribution to journal › Article

13 Citations (Scopus)

232 Downloads (Pure)

Abstract

Herein, an in situ DRIFT technique was used to study the reaction mechanism of methanol dehydration to dimethyl ether (DME). Moreover, the effect of silver loading on the catalytic performance of η-Al2O3 was examined in a fixed bed reactor under the reaction conditions where the temperature ranged from 180 to 300 °C with a WHSV = 48.4 h–1. It was observed that the optimum Ag loading was found to be 10% Ag/η-Al2O3 with this novel catalyst also showing a high degree of stability under steady-state conditions, and this is attributed to the enhancement in both the surface Lewis acidity and the hydrophobicity.

Original language	English
Pages (from-to)	25018–25032
Journal	Journal of Physical Chemistry C
Volume	121
Issue number	45
DOIs	https://doi.org/10.1021/acs.jpcc.7b04697
Publication status	Published - 20 Oct 2017

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Silver-Modified η-Al2O3 Catalyst for DME Production
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Osman Ahmed, A. I., Abu-Dahrieh, J., Abdelkader, A., Hassan, N., Laffir, F., McLaren, M., & Rooney, D. (2017). Silver-Modified η-Al2O3 Catalyst for DME Production. Journal of Physical Chemistry C, 121(45), 25018–25032. https://doi.org/10.1021/acs.jpcc.7b04697

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AU - Abdelkader, Adel

AU - Hassan, Nourhan

AU - Laffir, Fathima

AU - McLaren, Mathew

AU - Rooney, David

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AB - Herein, an in situ DRIFT technique was used to study the reaction mechanism of methanol dehydration to dimethyl ether (DME). Moreover, the effect of silver loading on the catalytic performance of η-Al2O3 was examined in a fixed bed reactor under the reaction conditions where the temperature ranged from 180 to 300 °C with a WHSV = 48.4 h–1. It was observed that the optimum Ag loading was found to be 10% Ag/η-Al2O3 with this novel catalyst also showing a high degree of stability under steady-state conditions, and this is attributed to the enhancement in both the surface Lewis acidity and the hydrophobicity.

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