Mechanochemical synthesis of CaO·ZnO·K2CO3 catalyst: Characterization and activity for methanolysis of sunflower oil
Article (Published version)
Metadata
Show full item recordAbstract
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.
Keywords:
biodiesel synthesis / CaO / K2CO3 / mechanochemical synthesis / mixed oxides / ZnOSource:
Chemical Industry and Chemical Engineering Quarterly, 2015, 21, 1, 1-12Publisher:
- Belgrade: Association of the Chemical Engineers of Serbia
Funding / projects:
DOI: 10.2298/CICEQ131026041K
ISSN: 1451-9372
WoS: 000354755400001
Scopus: 2-s2.0-84946185788
Institution/Community
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - JOUR AU - Kesić, Željka AU - Lukić, Ivana AU - Zdujić, Miodrag AU - Jovalekić, Čedomir AU - Liu, Hui AU - Skala, Dejan PY - 2015 UR - https://dais.sanu.ac.rs/123456789/3542 AB - 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. PB - Belgrade: Association of the Chemical Engineers of Serbia T2 - Chemical Industry and Chemical Engineering Quarterly T1 - Mechanochemical synthesis of CaO·ZnO·K2CO3 catalyst: Characterization and activity for methanolysis of sunflower oil SP - 1 EP - 12 VL - 21 IS - 1 DO - 10.2298/CICEQ131026041K UR - https://hdl.handle.net/21.15107/rcub_dais_3542 ER -
@article{ author = "Kesić, Željka and Lukić, Ivana and Zdujić, Miodrag and Jovalekić, Čedomir and Liu, Hui and Skala, Dejan", year = "2015", 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.", publisher = "Belgrade: Association of the Chemical Engineers of Serbia", journal = "Chemical Industry and Chemical Engineering Quarterly", title = "Mechanochemical synthesis of CaO·ZnO·K2CO3 catalyst: Characterization and activity for methanolysis of sunflower oil", pages = "1-12", volume = "21", number = "1", doi = "10.2298/CICEQ131026041K", url = "https://hdl.handle.net/21.15107/rcub_dais_3542" }
Kesić, Ž., Lukić, I., Zdujić, M., Jovalekić, Č., Liu, H.,& Skala, D.. (2015). Mechanochemical synthesis of CaO·ZnO·K2CO3 catalyst: Characterization and activity for methanolysis of sunflower oil. in Chemical Industry and Chemical Engineering Quarterly Belgrade: Association of the Chemical Engineers of Serbia., 21(1), 1-12. https://doi.org/10.2298/CICEQ131026041K https://hdl.handle.net/21.15107/rcub_dais_3542
Kesić Ž, Lukić I, Zdujić M, Jovalekić Č, Liu H, Skala D. Mechanochemical synthesis of CaO·ZnO·K2CO3 catalyst: Characterization and activity for methanolysis of sunflower oil. in Chemical Industry and Chemical Engineering Quarterly. 2015;21(1):1-12. doi:10.2298/CICEQ131026041K https://hdl.handle.net/21.15107/rcub_dais_3542 .
Kesić, Željka, Lukić, Ivana, Zdujić, Miodrag, Jovalekić, Čedomir, Liu, Hui, Skala, Dejan, "Mechanochemical synthesis of CaO·ZnO·K2CO3 catalyst: Characterization and activity for methanolysis of sunflower oil" in Chemical Industry and Chemical Engineering Quarterly, 21, no. 1 (2015):1-12, https://doi.org/10.2298/CICEQ131026041K ., https://hdl.handle.net/21.15107/rcub_dais_3542 .