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Synthesis of biodiesel over activated cao-based catalyst: optimisation of process parameters and effects of using biodiesel

dc.contributor.advisorZarubica, Aleksandra
dc.contributor.otherBojić, Aleksandar
dc.contributor.otherMiljković, Milena
dc.contributor.otherGadžurić, Slobodan
dc.contributor.otherMilićević, Dragan
dc.creatorLjupković, Radomir B.
dc.date.accessioned2016-01-05T13:23:41Z
dc.date.available2016-01-05T13:23:41Z
dc.date.available2020-07-03T16:11:53Z
dc.date.issued2014-12-25
dc.identifier.urihttp://eteze.ni.ac.rs/application/showtheses?thesesId=1931
dc.identifier.urihttp://nardus.mpn.gov.rs/handle/123456789/3966
dc.identifier.urihttps://fedorani.ni.ac.rs/fedora/get/o:967/bdef:Content/download
dc.identifier.urihttp://vbs.rs/scripts/cobiss?command=DISPLAY&base=70052&RID=1024887017
dc.description.abstractThe influence of the physicochemical properties of a series of CaO catalysts activated at different temperatures on the biodiesel production was investigated. These catalysts show dissimilar yields in the transesterification of triglycerides with methanol. We have found significant relationships between structural properties (the type of the pore system, the typical CaO crystal phase and the sizes of crystallites (up to 25 nm), the minimal weight percentage of CaO phase, the total surface basicity and potential existence of two types of basic active sites) of CaO prepared and activated by means of thermal treatment at highest temperature and catalytic efficiency. Benefits of this catalyst are short contact time, standard operating temperature and atmospheric conditions, relatively low molar ratios and small catalyst loading. These all together resulted in a very high biodiesel yield of high purity. The properties of different biodiesel (obtained with the use of the prepared CaO catalyst) blends with different diesel and biodiesel ratios indicate that the higher the fraction of biodiesel fuel the better the achieved fuel properties according to the EU standards. A significant reduction of CO2 and CO emissions and only a negligible NOx increase occurred when blends with an increased biodiesel portion was used. The use of biodiesel derived blends, and the eventual complete replacement of fossil fuels with biodiesel as a renewable, alternative fuel for diesel engines, would greatly contribute to the reduction of greenhouse gases emissions.en
dc.formatapplication/pdf
dc.languagesr
dc.publisherУниверзитет у Нишу, Природно-математички факултетsr
dc.relationinfo:eu-repo/grantAgreement/MESTD/Technological Development (TD or TR)/34008/RS//
dc.rightsopenAccessen
dc.sourceУниверзитет у Нишуsr
dc.subjectBiodizelsr
dc.subjectbiodiesel productionen
dc.subjecttransеsterifikacijasr
dc.subjectkalcijum-oksidsr
dc.subjectkatalizatorsr
dc.subjectemisija gasova staklene baštesr
dc.subjectCaO catalysten
dc.subjectgreenhouse gases emissionen
dc.subjectstructural catalytic propertiesen
dc.titleSinteza biodizela na aktiviranom katalizatoru na bazi CaO: optimizacija procesnih parametara i efekti korišćenja biodizelasr
dc.titleSynthesis of biodiesel over activated cao-based catalyst: optimisation of process parameters and effects of using biodieselen
dc.typedoctoralThesis
dc.rights.licenseBY-NC-ND
dcterms.abstractЗарубица, Aлександра; Бојић, Aлександар; Милићевић, Драган; Миљковић, Милена; Гаджурић, Слободан; Љупковић, Радомир Б.; Синтеза биодизела на активираном катализатору на бази ЦаО: оптимизација процесних параметара и ефекти коришћења биодизела; Синтеза биодизела на активираном катализатору на бази ЦаО: оптимизација процесних параметара и ефекти коришћења биодизела;
dc.identifier.fulltexthttp://nardus.mpn.gov.rs/bitstream/id/54193/Ljupkovic_Radomir_B.pdf
dc.identifier.fulltexthttp://nardus.mpn.gov.rs/bitstream/id/54192/Disertacija.pdf


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