Show simple item record

dc.contributor.authorMazoyer, Etienne
dc.contributor.authorSzeto, Kaï Chung
dc.contributor.authorMerle, Nicolas
dc.contributor.authorThivolle-Cazat, Jean
dc.contributor.authorBoyron, Olivier
dc.contributor.authorBasset, Jean-Marie
dc.contributor.authorNicholas, Christopher P.
dc.contributor.authorTaoufik, Mostafa
dc.date.accessioned2015-08-03T11:52:20Z
dc.date.available2015-08-03T11:52:20Z
dc.date.issued2014-04
dc.identifier.citationMazoyer, E., Szeto, K. C., Merle, N., Thivolle-Cazat, J., Boyron, O., Basset, J.-M., … Taoufik, M. (2014). Insights into the deactivation mechanism of supported tungsten hydride on alumina (W-H/Al2O3) catalyst for the direct conversion of ethylene to propylene. Journal of Molecular Catalysis A: Chemical, 385, 125–132. doi:10.1016/j.molcata.2014.01.025
dc.identifier.issn13811169
dc.identifier.doi10.1016/j.molcata.2014.01.025
dc.identifier.urihttp://hdl.handle.net/10754/563472
dc.description.abstractTungsten hydride supported on alumina prepared by the surface organometallic chemistry method is an active precursor for the direct conversion of ethylene to propylene at low temperature and pressure. An extensive contact time study revealed that the dimerization of ethylene to 1-butene is the primary and also the rate limiting step. The catalytic cycle further involves isomerization of 1-butene to 2-butene, followed by cross-metathesis of ethylene and 2-butene to yield propylene with high selectivity. The deactivation mechanism of this reaction has been investigated. The used catalyst was extensively examined by DRIFTS, solid-state NMR, EPR, UV-Vis, TGA and DSC techniques. It was found that a large amount of carbonaceous species, which were due to side reaction like olefin polymerization took place with time on stream, significantly hindering the dimerization of ethylene to 1-butene and therefore the production of propylene. Crown Copyright © 2014 Published by Elsevier B.V. All rights reserved.
dc.publisherElsevier BV
dc.subjectCatalyst deactivation
dc.subjectHeterogeneous catalysis
dc.subjectPolymerization
dc.subjectSolid state NMR
dc.subjectTGA/DSC
dc.titleInsights into the deactivation mechanism of supported tungsten hydride on alumina (W-H/Al2O3) catalyst for the direct conversion of ethylene to propylene
dc.typeArticle
dc.contributor.departmentChemical Science Program
dc.contributor.departmentKAUST Catalysis Center (KCC)
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalJournal of Molecular Catalysis A: Chemical
dc.contributor.institutionUniversité Lyon 1, C2P2, ICL, 43 Bd du 11 Novembre 1918, 69616 Villeurbanne, France
dc.contributor.institutionExploratory Catalysis Research, UOP LLC, A Honeywell Company, 25 East Algonquin Road, Des Plaines, IL 60017, United States
kaust.personBasset, Jean-Marie


This item appears in the following Collection(s)

Show simple item record