dc.creator | Kesić, Željka | |
dc.creator | Lukić, Ivana | |
dc.creator | Zdujić, Miodrag | |
dc.creator | Jovalekić, Čedomir | |
dc.creator | Liu, Hui | |
dc.creator | Skala, Dejan | |
dc.date.accessioned | 2018-07-25T13:12:50Z | |
dc.date.available | 2018-07-25T13:12:50Z | |
dc.date.issued | 2015 | |
dc.identifier.issn | 1451-9372 | |
dc.identifier.uri | https://dais.sanu.ac.rs/123456789/3542 | |
dc.description.abstract | The goal of this study was to prepare a CaO·ZnO catalyst containing a small amount of K2CO3 and analyze its activity for biodiesel synthesis. The catalyst was prepared using the following procedure: CaO and ZnO (mole ratio of 1:2), water and K2CO3 (in various amounts) were mechanochemically treated and after milling heated at 700 °C in air atmosphere for obtaining mixed CaO·ZnO/xK2CO3 oxides (x = 0, 1, 2 and 4 mol of K2CO3 per 10 mol of CaO). All the samples were characterized by X-ray diffraction (XRD), inductively coupled plasma (ICP), X-ray photoelectron spectroscopy (XPS), thermogravimetric analysis (TGA), infrared spectroscopy (FTIR), scanning electron microscopy/energy-dispersive spectroscopy (SEM/EDS), particle size laser diffraction (PSLD) distribution, solubility measurement of Ca, Zn and K ions in methanol as well as by determination of their alkalinity (Hammett Indicator method). Prepared CaO·ZnO/xK2CO3 composite powders were tested as catalysts for methanolysis of sunflower oil at 70 °C using mole ratio of sunflower oil to methanol of 1:10 and with 2 mass% of catalyst based on oil weight. The presence of K2CO3 in prepared samples was found to increase the activity of catalyst, and that such effect is caused by homogeneous-heterogeneous catalysis of biodiesel synthesis. © 2015, CI and CEQ. All Rights Reserved. | en |
dc.publisher | Belgrade: Association of the Chemical Engineers of Serbia | |
dc.relation | info:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45001/RS// | |
dc.rights | openAccess | |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/4.0/ | |
dc.source | Chemical Industry and Chemical Engineering Quarterly | |
dc.subject | biodiesel synthesis | |
dc.subject | CaO | |
dc.subject | K2CO3 | |
dc.subject | mechanochemical synthesis | |
dc.subject | mixed oxides | |
dc.subject | ZnO | |
dc.title | Mechanochemical synthesis of CaO·ZnO·K2CO3 catalyst: Characterization and activity for methanolysis of sunflower oil | en |
dc.type | article | en |
dc.rights.license | BY-NC-ND | |
dcterms.abstract | Јовалекић, Чедомир; Кесић, Жељка; Лукић, Ивана; Здујић, Миодраг; Лиу, Хуи; Скала, Дејан; | |
dc.citation.spage | 1 | |
dc.citation.epage | 12 | |
dc.citation.volume | 21 | |
dc.citation.issue | 1 | |
dc.identifier.wos | 000354755400001 | |
dc.identifier.doi | 10.2298/CICEQ131026041K | |
dc.identifier.scopus | 2-s2.0-84946185788 | |
dc.type.version | publishedVersion | |
dc.identifier.fulltext | https://dais.sanu.ac.rs/bitstream/id/11276/Kesic_2015_Chemical-Industry-and-Chemical-Engineering-Quarterly_21_1.pdf | |
dc.identifier.rcub | https://hdl.handle.net/21.15107/rcub_dais_3542 | |