The Effect of Co-feeding Methyl Acetate on the H-ZSM5 Catalysed Methanol-to-Hydrocarbons Reaction View Full Text


Ontology type: schema:ScholarlyArticle      Open Access: True


Article Info

DATE

2020-04-03

AUTHORS

A. Zachariou, A. P. Hawkins, P. Collier, R. F. Howe, S. F. Parker, D. Lennon

ABSTRACT

The reactivity of methanol and methyl acetate mixtures over a HZSM-5 catalyst is studied over a period of 6 h at 350 °C, with small molecular weight olefins and aromatic compounds observed as reaction products. Post-reaction analysis of the catalyst shows the coke content to increase with methyl acetate content. Vibrational spectra (DRIFTS and inelastic neutron scattering, INS) indicate the major hydrocarbon species present in the coked catalysts to be methylated aromatic molecules, with INS spectra indicating a greater degree of methylation in the catalysts used with higher methyl acetate content. The greater extent of deactivation at higher methyl acetate concentrations is tentatively attributed to a diminishment of water in the zeolite cavity, which would otherwise facilitate re-generation of the active sites. More... »

PAGES

370-377

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s11244-020-01258-3

DOI

http://dx.doi.org/10.1007/s11244-020-01258-3

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1126110037


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