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dc.creatorPavlović, Stefan
dc.creatorMilovanović, Biljana
dc.creatorPaunović, Anđela
dc.date.accessioned2020-11-19T08:39:20Z
dc.date.available2020-11-19T08:39:20Z
dc.date.issued2019
dc.identifier.isbn978-86-7132-076-4
dc.identifier.urihttps://cer.ihtm.bg.ac.rs/handle/123456789/3779
dc.description.abstractModified highly active CaO catalyst (ESCHC-600) derived from waste chicken eggshells were prepared and used in the transesterification of sunflower oil. Eggshells were subjected to calcination-hydration-calcination (CHC) cycles described in detail previously [1]. After CHC treatments, highly active CaO was obtained, which indicates its great potential for biodiesel synthesis. The transesterification reaction was carried out in a batch reactor at 60 ºC, methanol to oil molar ratio of 12:1, and different catalyst concentrations ranging from 2 to 8 wt%. Fatty acid methyl esters (FAMEs) content was determined by the HPLC analytical technique. The highest triacylglycerols (TAGs) conversion to FAMEs was achieved at a catalyst loading of 4 wt% (Fig. 1a). A further increase in catalyst loading (> 4 wt%) led to a decrease in TAGs conversion. The higher catalyst loadings (6 and 8 wt%) limited mass transfer of the TAGs and reaction products (FAMEs, DAGs and MAGs) due to the higher reaction mixture density and viscosity of the complex multiphase system. Compared to raw eggshell calcined at 900 ºC (ES-900) (Fig. 1b), the synthesized ESCHC-600 catalyst showed a higher activity, which could be attributed to a more favourable pore structure of CHC treated catalyst and better availability of the active sites.en
dc.language.isoensr
dc.publisherBelgrade : Serbian Chemical Societysr
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45001/RS//sr
dc.rightsopenAccesssr
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.sourceBook of abstracts - Seventh Conference of the Young Chemists of Serbiasr
dc.subjectCaO catalystsr
dc.subjecttransesterificationsr
dc.subjectFAMEsr
dc.titleModified eggshell catalyst for transesterification of sunflower oil: The effects of catalyst loading on FAMEs contenten
dc.typeconferenceObjectsr
dc.rights.licenseBYsr
dcterms.abstractПавловић, Стефан; Пауновић, Aнђела; Миловановић, Биљана;
dc.description.otherConference of the Young Chemists of Serbia, Belgrade, 2nd November 2019en
dc.identifier.fulltexthttps://cer.ihtm.bg.ac.rs/bitstream/id/17642/M64_2.pdf
dc.type.versionpublishedVersionsr


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