Isomerization of alpha-pinene over calcined natural zeolites

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dc.contributor.authorAkpolat, O
dc.contributor.authorGunduz, G
dc.contributor.authorOzkan, F
dc.contributor.authorBesun, N
dc.date.accessioned2019-10-27T19:03:06Z
dc.date.available2019-10-27T19:03:06Z
dc.date.issued2004
dc.departmentEge Üniversitesien_US
dc.description.abstractIn this work, isomerization reaction of alpha-pinene was studied over several heat-treated natural zeolite catalysts, rich in clinoptilolite, from Balykesir-Bigadic region in Turkey in a batch slurry reactor under nitrogen atmosphere. Zeolite samples were calcined at different temperatures such as 300, 450 and 600degreesC. All catalysts were tested in the isomerization reaction of alpha-pinene and were characterised by nitrogen adsorption experiments, IR, and XRD measurements. Acidity strength and the distribution of Lewis and Bronsted acid sites of the samples were determined. Selectivities to main reaction products, camphene and limonene, and reaction kinetics were investigated. Catalytic activity, that is total conversion of alpha-pinene, of heat-treated samples decreased with increasing calcination temperatures. Selectivity to limonene is dependent on alpha-pinene conversion at high conversion levels while the selectivity to camphene is not. The formation of heavy products increased with treatment temperature. It was seen that alpha-pinene consumption could be described by a first-order kinetics. (C) 2004 Elsevier B.V. All rights reserved.en_US
dc.identifier.doi10.1016/j.apcata.2003.12.055
dc.identifier.endpage22en_US
dc.identifier.issn0926-860X
dc.identifier.issn1873-3875
dc.identifier.issn0926-860Xen_US
dc.identifier.issn1873-3875en_US
dc.identifier.issue1en_US
dc.identifier.startpage11en_US
dc.identifier.urihttps://doi.org/10.1016/j.apcata.2003.12.055
dc.identifier.urihttps://hdl.handle.net/11454/38080
dc.identifier.volume265en_US
dc.identifier.wosWOS:000221630100002en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.language.isoenen_US
dc.publisherElsevier Science Bven_US
dc.relation.ispartofApplied Catalysis A-Generalen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectalpha-pineneen_US
dc.subjectisomerizationen_US
dc.subjectcampheneen_US
dc.subjectlimoneneen_US
dc.subjectnatural zeoliteen_US
dc.subjectcatalyst characterizationen_US
dc.subjectclinoptiloliteen_US
dc.subjectkinetic modellingen_US
dc.titleIsomerization of alpha-pinene over calcined natural zeolitesen_US
dc.typeArticleen_US

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