Приказ основних података о документу

dc.creatorMiladinović, Marija M.
dc.creatorKrstić, Jugoslav
dc.creatorZdujić, Miodrag V.
dc.creatorVeselinović, Ljiljana M.
dc.creatorVeljović, Đorđe
dc.creatorBanković-Ilić, Ivana B.
dc.creatorStamenković, Olivera
dc.creatorVeljković, Vlada B.
dc.date.accessioned2021-11-24T14:02:43Z
dc.date.available2021-11-24T14:02:43Z
dc.date.issued2022
dc.identifier.issn0960-1481
dc.identifier.urihttps://cer.ihtm.bg.ac.rs/handle/123456789/4868
dc.description.abstractHazelnut shell ash was investigated as a new base catalyst for the transesterification of used cooking sunflower oil to biodiesel. To understand its catalytic properties, the prepared ash was characterized by EDX, XRD, TGA/DTA, Hg porosimetry, N2 physisorption, FE-SEM, and basic strength measurements. The effects of the catalyst loading in the range of 1–5% of the oil weight and the methanol-to-oil molar ratio of 6:1–18:1 on the kinetics of the fatty acid methyl esters synthesis were established. Moreover, the leaching and reusability of the catalyst were assessed. The obtained results revealed that hazelnut shell ash was mostly composed of K, Ca, and Mg. The highest ester content (98%) was achieved at the catalyst loading of 5%, the methanol-to-oil molar ratio of 12:1, and the reaction time of 10 min. The contribution of homogeneous catalysis because of the catalyst leaching was confirmed but did not determine the overall reaction rate. The catalyst can be reused after the recalcination at 800 °C for 2 h achieving the high methyl esters content (>96%) in 30 min after three subsequent runs. The overall reaction followed the pseudo-first-order kinetics with respect to triacylglycerols. A linear relationship between the apparent reaction rate constant and the catalyst loading and the methanol-to-oil molar ratio was determined. The determined value of the reaction rate constant was 0.0576 dm6/(min•mol2).sr
dc.language.isoensr
dc.publisherElseviersr
dc.relationinfo:eu-repo/grantAgreement/MESTD/inst-2020/200026/RS//sr
dc.relationinfo:eu-repo/grantAgreement/MESTD/inst-2020/200133/RS//sr
dc.relationThe Project 0-14-18 of the SASA Branch in Niš, Serbiasr
dc.relationMinistry of Education, Science and Technological development of the Republic of Serbia, 451-03-9/2021–14/200383sr
dc.rightsrestrictedAccesssr
dc.sourceRenewable Energysr
dc.subjectAshsr
dc.subjectBiodieselsr
dc.subjectHazelnut shellsr
dc.subjectKineticssr
dc.subjectTransesterificationsr
dc.titleTransesterification of used cooking sunflower oil catalyzed by hazelnut shell ashsr
dc.typearticlesr
dc.rights.licenseARRsr
dc.citation.volume183
dc.citation.spage103
dc.citation.epage113
dc.citation.rankM21~
dc.identifier.doi10.1016/j.renene.2021.10.071
dc.identifier.scopus2-s2.0-85118578396
dc.identifier.wos000722817600009
dc.type.versionpublishedVersionsr


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Приказ основних података о документу