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

Andrea Zachariou; Alexander Hawkins; David Lennon; Stewart F. Parker; null Suwardiyanto; Santhosh K. Matam; C. Richard A. Catlow; Paul Collier; Ali Hameed; James McGregor; Russell F. Howe

doi:10.1016/j.apcata.2018.10.010

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

Andrea Zachariou, Alexander Hawkins, David Lennon, Stewart F. Parker, Suwardiyanto, Santhosh K. Matam, C. Richard A. Catlow, Paul Collier, Ali Hameed, James McGregor, Russell F. Howe^* (Corresponding Author)

^*Corresponding author for this work

Research output: Contribution to journal › Article

5 Citations (Scopus)

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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.

Original language	English
Pages (from-to)	1-7
Number of pages	7
Journal	Applied Catalysis A: General
Volume	569
Early online date	9 Oct 2018
DOIs	https://doi.org/10.1016/j.apcata.2018.10.010
Publication status	Published - 5 Jan 2019

Keywords

Coke formation
Dimethylether
Inelastic neutron scattering
ZSM-5

ASJC Scopus subject areas

Catalysis
Process Chemistry and Technology

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Investigation of ZSM-5 catalysts for dimethylether conversion using inelastic neutron scattering
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Zachariou, A., Hawkins, A., Lennon, D., Parker, S. F., Suwardiyanto, Matam, S. K., Catlow, C. R. A., Collier, P., Hameed, A., McGregor, J., & Howe, R. F. (2019). Investigation of ZSM-5 catalysts for dimethylether conversion using inelastic neutron scattering. Applied Catalysis A: General, 569, 1-7. https://doi.org/10.1016/j.apcata.2018.10.010

Investigation of ZSM-5 catalysts for dimethylether conversion using inelastic neutron scattering. / Zachariou, Andrea; Hawkins, Alexander; Lennon, David; Parker, Stewart F.; Suwardiyanto; Matam, Santhosh K.; Catlow, C. Richard A.; Collier, Paul; Hameed, Ali; McGregor, James; Howe, Russell F. (Corresponding Author).

In: Applied Catalysis A: General, Vol. 569, 05.01.2019, p. 1-7.

Research output: Contribution to journal › Article

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title = "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.",

keywords = "Coke formation, Dimethylether, Inelastic neutron scattering, ZSM-5",

author = "Andrea Zachariou and Alexander Hawkins and David Lennon and Parker, {Stewart F.} and Suwardiyanto and Matam, {Santhosh K.} and Catlow, {C. Richard A.} and Paul Collier and Ali Hameed and James McGregor and Howe, {Russell F.}",

note = "The UK Catalysis Hub is thanked for resources, support and access to the Research Complex at Harwell which is provided via our membership of the UK Catalysis Hub Consortium and funded by EPSRC (grants EP/K014706/1, EP/K014668/1, EP/K014854/1, EP/K014714/1 and EP/M013219/1). The STFC Rutherford Appleton Laboratory is thanked for access to the neutron beam facilities. Johnson Matthey plc is thanked for studentship support via the EPSRC Industrial CASE scheme (AZ and AH), and the provision of the ZSM5 catalyst plus some characterisation information.",

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AU - Zachariou, Andrea

AU - Hawkins, Alexander

AU - Lennon, David

AU - Parker, Stewart F.

AU - Suwardiyanto, null

AU - Matam, Santhosh K.

AU - Catlow, C. Richard A.

AU - Collier, Paul

AU - Hameed, Ali

AU - McGregor, James

AU - Howe, Russell F.

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PY - 2019/1/5

Y1 - 2019/1/5

N2 - 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.

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KW - Inelastic neutron scattering

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