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dc.creatorTodorović, Zoran B.
dc.creatorTroter, Dragan Z.
dc.creatorĐokić-Stojanović, Dušica R.
dc.creatorVeličković, Ana V.
dc.creatorAvramović, Jelena M.
dc.creatorStamenković, Olivera S.
dc.creatorVeselinović, Ljiljana
dc.creatorVeljković, Vlada B.
dc.date.accessioned2018-10-25T10:42:42Z
dc.date.available2018-10-25T10:42:42Z
dc.date.issued2019
dc.identifier.issn0016-2361
dc.identifier.urihttp://www.sciencedirect.com/science/article/pii/S0016236118317691
dc.identifier.urihttp://dais.sanu.ac.rs/123456789/4070
dc.description.abstractCrude biodiesel was proven as a cosolvent in the methanolysis of sunflower oil catalyzed by calcined CaO. This reaction was modeled and optimized statistically in terms of reaction temperature (33.2–66.8 °C), methanol-to-oil molar ratio (3.5:1–8.5:1) and catalyst concentration (0.219–1.065 mol/L). The cosolvent loading was 10 wt% (based on oil weight). The optimum reaction conditions were found to be: the methanol-to-oil molar ratio of 7.1:1, the catalyst concentration of 0.74 mol/L and the reaction temperature 52 °C, ensuring the best esters content of 99.8%, for the reaction time of 1.5 h, which is close to the reported experimental value of 98.9%. Also, the used catalyst was recycled with no additional treatment in the further four consecutive cycles under the following reaction conditions: methanol-to-oil molar ratio 6:1, the concentration of catalyst 0.642 mol/L (only in the first run), the reaction temperature 50 °C, cosolvent-crude biodiesel loading 10 wt% to oil weight. The second recycling reaction provided the highest FAME content of 97.7% after 5 h.
dc.publisherElsevier
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45001/RS//
dc.rightsrestrictedAccess
dc.sourceFuel
dc.subjectbiodiesel
dc.subjectcalcium leaching
dc.subjectCaO
dc.subjectcosolvent
dc.subjectmethanolysis
dc.subjectrecycling
dc.titleOptimization of CaO-catalyzed sunflower oil methanolysis with crude biodiesel as a cosolvent
dc.typearticleen
dc.rights.licenseARR
dcterms.abstractТодоровић, Зоран Б.; Тротер, Драган З.; Величковић, Aна В.; Aврамовић, Јелена М.; Стаменковић, Оливера С.; Веселиновић, Љиљана; Вељковић, Влада Б.; Ђокић-Стојановић, Душица Р.;
dc.citation.spage903
dc.citation.epage910
dc.citation.volume237
dc.identifier.wos000448573200087
dc.identifier.doi10.1016/j.fuel.2018.10.056
dc.identifier.scopus2-s2.0-85054878189
dc.description.otherAccepted version: [http://dais.sanu.ac.rs/123456789/4069]
dc.description.otherSupplementary material: [http://dais.sanu.ac.rs/123456789/4071]
dc.type.versionpublishedVersion


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