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dc.contributor.authorFranz, Robert
dc.contributor.authorKühlewind, Tobias
dc.contributor.authorShterk, Genrikh
dc.contributor.authorAbou-Hamad, Edy
dc.contributor.authorParastaev, Alexander
dc.contributor.authorUslamin, Evgeny
dc.contributor.authorHensen, Emiel J.M.
dc.contributor.authorKapteijn, Freek
dc.contributor.authorGascon, Jorge
dc.contributor.authorPidko, Evgeny A.
dc.date.accessioned2020-06-02T13:43:22Z
dc.date.available2020-06-02T13:43:22Z
dc.date.issued2020
dc.date.submitted2020-04-22
dc.identifier.citationFranz, R., Kühlewind, T., Shterk, G., Abou-Hamad, E., Parastaev, A., Uslamin, E., … Pidko, E. A. (2020). Impact of small promoter amounts on coke structure in dry reforming of methane over Ni/ZrO2. Catalysis Science & Technology. doi:10.1039/d0cy00817f
dc.identifier.issn2044-4753
dc.identifier.issn2044-4761
dc.identifier.doi10.1039/d0cy00817f
dc.identifier.urihttp://hdl.handle.net/10754/662975
dc.description.abstractCoke deposition is one of the main challenges in the commercialisation of dry reforming of methane over supported Ni catalysts. Besides the coke quantity, the structure of the deposits is also essential for the catalyst lifetime. Accordingly, in this study, we analysed the effect of Na, K, and Cs promoters on both these variables over Ni/ZrO2 catalysts. Besides blocking the most active coke-forming sites already at low loading, the promoting effect of the alkali metals is also contributed to by their coke gasification activity. To evaluate the additional impact of the latter, the behaviour of alkali-doped catalysts was compared to that for Mn-doped catalysts, exclusively featuring the site-blocking promotion mechanism. While the conversion is barely affected by the type of promoter, it has a profound effect on the amount and the composition of carbon deposits formed during the reaction. Promoting with K or Mn reduces the coke content to a similar degree but with less carbon fibres observed in the case of K. The promotion by Cs and Na results in the lowest coke content. The superior performance of Cs and Na-doped Ni/ZrO2 catalysts is attributed to the enhanced coke gasification via carbonate species on top of the site blocking effects.
dc.description.sponsorshipFinancial support by the CatC1Chem project of NWO, BASF, SABIC and Sasol is gratefully acknowledged.
dc.publisherRoyal Society of Chemistry (RSC)
dc.relation.urlhttp://xlink.rsc.org/?DOI=D0CY00817F
dc.relation.urlhttps://pubs.rsc.org/en/content/articlepdf/2020/cy/d0cy00817f
dc.rightsThis is an open access article licensed under a Creative Commons Attribution 3.0 Unported Licence.
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/
dc.titleImpact of small promoter amounts on coke structure in dry reforming of methane over Ni/ZrO2
dc.typeArticle
dc.contributor.departmentAdvanced Catalytic Materials, KAUST Catalysis Center, King Abdullah University of Science and Technology, Thuwal 23955, Saudi Arabia
dc.contributor.departmentChemical Engineering Program
dc.contributor.departmentChemical Science
dc.contributor.departmentImaging and Characterization Core Lab
dc.contributor.departmentKAUST Catalysis Center (KCC)
dc.contributor.departmentNMR
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalCatalysis Science & Technology
dc.eprint.versionPost-print
dc.contributor.institutionInorganic Systems Engineering, Department of Chemical Engineering, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
dc.contributor.institutionCatalysis Engineering, Department of Chemical Engineering, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
dc.contributor.institutionLaboratory of Inorganic Materials and Catalysis, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, Eindhoven, The Netherlands
kaust.personShterk, Genrikh
kaust.personAbou-Hamad, Edy
kaust.personGascon, Jorge
dc.date.accepted2020-05-21
dc.relation.issupplementedbyDOI:10.4121/uuid:44f4246c-734f-45ce-9ced-c6ee4c614dd2
refterms.dateFOA2020-06-02T13:44:41Z
display.relations<b>Is Supplemented By:</b><br/> <ul><li><i>[Dataset]</i> <br/> Franz, R.P.M. (Robert), Kühlewind, T. (Tobias), Shterk, G. (Genrikh), Abou-Hamad, E. (Edy), Parastaev, A. (Alexander), Uslamin, E. (Evgeny), Hensen, E.J.M. (Emiel), Kapteijn, F. (Freek), Gascon, J. (Jorge), &amp; Pidko, E.A. (Evgeny). (2020). <i>Supplementary data for the paper: Impact of small promoter amounts on coke structure in dry reforming of methane over Ni/ ZrO2</i> [Data set]. 4TU.Centre for Research Data. https://doi.org/10.4121/UUID:44F4246C-734F-45CE-9CED-C6EE4C614DD2. DOI: <a href="https://doi.org/10.4121/uuid:44f4246c-734f-45ce-9ced-c6ee4c614dd2" >10.4121/uuid:44f4246c-734f-45ce-9ced-c6ee4c614dd2</a> Handle: <a href="http://hdl.handle.net/10754/665158" >10754/665158</a></a></li></ul>


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