Investigation of ZSM-5 catalysts for dimethylether conversion using inelastic neutron scattering

Abstract

We report the characterisation of zeolite ZSM-5 catalysts used in the conversion of dimethylether to hydrocarbons. Inelastic neutron scattering spectroscopy, supported by solid state NMR, shows that the more rapid deactivation occurring with dimethylether compared with methanol is associated with the formation of less methylated aromatic coke species and attributed to the lower levels of water present during dimethylether conversion. The ability of inelastic neutron scattering to probe a working catalyst with no sample preparation is demonstrated.

This paper is dedicated to Chuck Peden on the occasion of his 65th birthday.

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Item Type:	Article
Authors/Creators:	Zachariou, A. Hawkins, A. Lennon, D. Parker, S. Suwardiyanto Matam, S. Catlow, C. Collier, P. Hameed, A. McGregor, J. https://orcid.org/0000-0001-6813-306X Howe, R.
Copyright, Publisher and Additional Information:	© 2018 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (https://creativecommons.org/licenses/by/4.0/).
Keywords:	ZSM-5; inelastic neutron scattering; dimethylether; coke formation
Dates:	Accepted: 7 October 2018 Published (online): 9 October 2018 Published: 5 January 2019
Institution:	The University of Sheffield
Academic Units:	The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Chemical and Biological Engineering (Sheffield)
Depositing User:	Symplectic Sheffield
Date Deposited:	10 Oct 2018 13:04
Last Modified:	17 May 2024 13:40
Status:	Published
Publisher:	Elsevier
Refereed:	Yes
Identification Number:	10.1016/j.apcata.2018.10.010
Open Archives Initiative ID (OAI ID):	oai:eprints.whiterose.ac.uk:136922

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Investigation of ZSM-5 catalysts for dimethylether conversion using inelastic neutron scattering

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