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Kinetics and optimization of biodiesel production from rapeseed oil over calcined waste filter cake from sugar beet processing plant
dc.creator | Nježić, Zvonko | |
dc.creator | Kostić, Milan D. | |
dc.creator | Marić, Boško D. | |
dc.creator | Stamenković, Olivera | |
dc.creator | Šimurina, Olivera D. | |
dc.creator | Krstić, Jugoslav | |
dc.creator | Veljković, Vlada B. | |
dc.date.accessioned | 2022-11-22T09:02:36Z | |
dc.date.available | 2022-11-22T09:02:36Z | |
dc.date.issued | 2023 | |
dc.identifier.issn | 0016-2361 | |
dc.identifier.uri | https://cer.ihtm.bg.ac.rs/handle/123456789/5399 | |
dc.description.abstract | A low-cost, highly active CaO-based catalyst was prepared from waste filter cake (WFC) from a sugar beet processing factory by calcination in air at 900 °C for 2 h, referred to as the calcined filter cake (CFC). It was used to catalyze the rapeseed oil transesterification with methanol under mild reaction conditions (methanol-to-oil molar ratio of 9:1, catalyst loading of 4–10 %, and reaction temperature of 40–60 °C). Rapeseed oil was characterized regarding the physicochemical properties and fatty acid profile. Low free fatty acid content (about 2.0 mg KOH/g) allowed the direct use of the base CFC catalyst for rapeseed oil transesterification. Rapeseed oil has more unsaturated fatty acids (about 93 %), with oleic acid as the most abundant, than saturated fatty acids (about 7 %). A simplified model combining the changing mechanism of the reaction and the triacylglycerols mass transfer limitation successfully describes the kinetics of transesterification. A good agreement between the model and the experiment was proved by the mean relative percentage deviation for the conversion degree of only ± 7.43 % (based on 42 data). The apparent reaction rate constant follows the Arrhenius equation with the activation energy of 51.9 kJ mol−1. The FAME content higher than 96.5 % can be obtained in wide ranges of the catalyst amount (4–10 %) and the reaction time (about 45–70 min). The following conditions were optimum: the reaction temperature of 59.2 °C, the catalyst loading of 9.1 % (based on the oil weight), and the reaction time of 47 min. | sr |
dc.language.iso | en | sr |
dc.publisher | Elsevier | sr |
dc.relation | info:eu-repo/grantAgreement/MESTD/inst-2020/200026/RS// | sr |
dc.relation | info:eu-repo/grantAgreement/MESTD/inst-2020/200133/RS// | sr |
dc.relation | The Serbian Academy of Sciences and Arts (Project F-78) | sr |
dc.rights | restrictedAccess | sr |
dc.source | Fuel | sr |
dc.subject | Biodiesel | sr |
dc.subject | Calcination | sr |
dc.subject | Kinetic modeling | sr |
dc.subject | Statistical optimization | sr |
dc.subject | Transesterification | sr |
dc.subject | Waste filter cake | sr |
dc.title | Kinetics and optimization of biodiesel production from rapeseed oil over calcined waste filter cake from sugar beet processing plant | sr |
dc.type | article | sr |
dc.rights.license | ARR | sr |
dc.citation.volume | 334 | |
dc.citation.spage | 126581 | |
dc.citation.rank | M21~ | |
dc.identifier.doi | 10.1016/j.fuel.2022.126581 | |
dc.identifier.scopus | 2-s2.0-85141496754 | |
dc.type.version | publishedVersion | sr |