A comparative study on the kinetics of carbon dioxide reforming of methane over Pt-Ni/Al2O3 catalyst: Effect of Pt/Ni Ratio

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dc.contributor.authorOzkara-Aydinoglu, Seyma
dc.contributor.authorAksoylu, A. Erhan
dc.date.accessioned2024-03-13T10:30:57Z
dc.date.available2024-03-13T10:30:57Z
dc.date.issued2013
dc.departmentİstanbul Beykent Üniversitesien_US
dc.description.abstractKinetics and surface reaction mechanism of CO2 reforming of methane (CDRM) was studied over 0.2%Pt-15%Ni/Al2O3 and 0.3%Pt-10%Ni/Al2O3 catalysts in order to determine the effect of Ni/Pt loading ratio on kinetic behavior. The simple power-law type rate expressions obtained for 0.3%Pt-10%Ni/Al2O3 and 0.2%Pt-15%Ni/Al2O3 have reaction orders of 1 and 1.09 for CH4 and 0.87 and 1.40 for CO2, respectively, confirming methane consumption rate for 0.2%Pt-15%Ni/Al2O3 sample is more sensitive to the increase in partial pressure of CO. The comparative analysis of meaningful surface reaction models for the catalysts and the optimized model parameters obtained revealed that the surface reaction mechanisms are completely different CO inhibition effect is stronger and CO2 utilization is suppressed on the catalyst with high Ni:Pt loading ratio. On the other hand, with a decrease in Ni:Pt loading ratio, CH4 adsorption becomes weaker, ability of utilizing CO2 as the oxygen source gets stronger and CO inhibition effect is practically eliminated. (C) 2012 Elsevier B.V. All rights reserved.en_US
dc.description.sponsorshipBogazici University [BAP 6755]; State Planning Organization of Turkey [DPT 071K20630]; TUBITAK [111M144]en_US
dc.description.sponsorshipThis study has been supported by Bogazici University through Project BAP 6755, by State Planning Organization of Turkey through Project DPT 071K20630 and by TUBITAK through project 111M144.en_US
dc.identifier.doi10.1016/j.cej.2012.11.034
dc.identifier.endpage549en_US
dc.identifier.issn1385-8947
dc.identifier.issn1873-3212
dc.identifier.scopus2-s2.0-84873036514en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage542en_US
dc.identifier.urihttps://doi.org/10.1016/j.cej.2012.11.034
dc.identifier.urihttps://hdl.handle.net/20.500.12662/3625
dc.identifier.volume215en_US
dc.identifier.wosWOS:000316032100067en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Science Saen_US
dc.relation.ispartofChemical Engineering Journalen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectPt-Ni catalystsen_US
dc.subjectDry reforming of methaneen_US
dc.subjectKineticsen_US
dc.subjectCO2 reforming of methaneen_US
dc.subjectSynthesis gasen_US
dc.titleA comparative study on the kinetics of carbon dioxide reforming of methane over Pt-Ni/Al2O3 catalyst: Effect of Pt/Ni Ratioen_US
dc.typeArticleen_US

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