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 |
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Pages (from-to) | 1-7 |
Number of pages | 7 |
Journal | Applied Catalysis A: General |
Volume | 569 |
Early online date | 9 Oct 2018 |
DOIs | |
Publication status | Published - 5 Jan 2019 |
Bibliographical 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.Keywords
- Coke formation
- Dimethylether
- Inelastic neutron scattering
- ZSM-5