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dc.contributor.authorRytter, Erling
dc.contributor.authorSalman, Ata ul Rauf
dc.contributor.authorTsakoumis, Nikolaos
dc.contributor.authorMyrstad, Rune
dc.contributor.authorYang, Jia
dc.contributor.authorLögdberg, Sara
dc.contributor.authorHolmen, Anders
dc.contributor.authorRønning, Magnus
dc.date.accessioned2020-12-11T13:35:00Z
dc.date.available2020-12-11T13:35:00Z
dc.date.created2017-12-04T08:52:54Z
dc.date.issued2018
dc.identifier.citationCatalysis Today. 2018, 299 20-27.en_US
dc.identifier.issn0920-5861
dc.identifier.urihttps://hdl.handle.net/11250/2718866
dc.description.abstractEight different silanes with chloro or methoxy active ligands have been examined to modify the surface of a standard γ-alumina support to investigate the effect of surface acidity and hydrophobicity in Fischer-Tropsch synthesis (FTS) at common operating conditions (210 °C; 20 bar; H2/CO = 2.1). Silanes were impregnated prior to cobalt (Pre) or after cobalt impregnation and calcination (Post). Samples were characterized by standard techniques (FTIR, XRD, TPD, TPR, TGA, BET). In the Post series, cobalt crystallite size is maintained, while it is reduced when cobalt impregnation is performed on a partly hydrophobic surface. Both series of catalysts have FTS performances that deviate significantly from a reference catalyst and, in combination with characterization data, the silanes have modified all the 15 examined catalysts. The Pre series offer options for improved selectivity to higher hydrocarbons in FTS. The effects of silylation on FT performance mechanisms are discussed in terms of gas diffusion limitations, strain in cobalt particles and partial blocking of CO activation sites.en_US
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/deed.no*
dc.titleHydrophobic Catalyst Support Surfaces by Silylation of γ-Alumina for Co/Re Fischer-Tropsch Synthesisen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionacceptedVersionen_US
dc.rights.holder© 2017. This is the authors’ accepted and refereed manuscript to the article.This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/en_US
dc.source.pagenumber20-27en_US
dc.source.volume299en_US
dc.source.journalCatalysis Todayen_US
dc.identifier.doihttps://doi.org/10.1016/j.cattod.2017.04.031
dc.identifier.cristin1522220
dc.relation.projectNorges forskningsråd: 174893en_US
cristin.unitcode7401,80,5,5
cristin.unitnameKinetikk og katalyse
cristin.ispublishedtrue
cristin.fulltextpostprint
cristin.qualitycode2


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Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal
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