Relevance of the Physicochemical Properties of Calcined Quail Eggshell (CaO) as a Catalyst for Biodiesel Production
| Autor: | Leandro Marques Correia, Juan Antonio Cecilia, Enrique Rodríguez-Castellón, Célio Loureiro Cavalcante, Rodrigo Silveira Vieira |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: | |
| Zdroj: | Journal of Chemistry, Vol 2017 (2017) |
| Druh dokumentu: | article |
| ISSN: | 2090-9063 2090-9071 |
| DOI: | 10.1155/2017/5679512 |
| Popis: | The CaO solid derived from natural quail eggshell was calcined and employed as catalyst to produce biodiesel via transesterification of sunflower oil. The natural quail eggshell was calcined at 900°C for 3 h, in order to modify the calcium carbonate present in its structure in CaO, the activity phase of the catalyst. Both precursor and catalyst were characterized using Hammett indicators method, X-ray fluorescence (XRF), X-ray diffraction (XRD), thermogravimetric analysis (TG/DTG), CO2 temperature-programmed desorption (CO2-TPD), X-ray photoelectronic spectroscopy (XPS), Fourier infrared spectroscopy (FTIR), scanning electron microscopy (SEM), N2 adsorption-desorption at −196°C, and distribution particle size. The maximum biodiesel production was of 99.00 ± 0.02 wt.% obtained in the following transesterification reaction conditions: XMR (sunflower oil/methanol molar ratio of 1 : 10.5 mol : mol), XCAT (catalyst loading of 2 wt.%), XTIME (reaction time of 2 h), stirring rate of 1000 rpm, and temperature of 60°C. |
| Databáze: | Directory of Open Access Journals |
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