 Biodiesel production via transesterification of canola oil in the presence of Na–K doped CaO derived from calcined eggshellMaryam Khatibi, Farhad Khorasheh and Afsanehsadat Larimi Renewable Energy, 2021, vol. 163, issue C, 1626-1636 Abstract: CaO derived from calcined eggshell was doped with Na–K by wet impregnation method and the effect of different Na/K molar ratios was investigated on biodiesel production from canola oil. The catalysts were characterized by X-ray Powder Diffraction (XRD), Brunauer–Emmett–Teller (BET), Scanning Electron Microscopy (SEM), Energy Dispersive X-ray (EDX), and Thermogravimetric (TGA) analyses. FAME yields were determined by Gas Chromatography-Mass Spectrometry (GC-MS). The Na–K/CaO catalyst with Na/K molar ratio of 1 showed the highest FAME yield of 97.6% at optimum reaction conditions. Structural investigation of materials revealed that FAME yield was proportional to the number of basic sites on the surface of catalyst. The optimum reaction conditions were found to be catalyst loading of 3 wt%, methanol to oil molar ratio of 9:1, reaction temperature of 50 °C, and reaction time of 3 h. Keywords: Biodiesel; Na–K/CaO; Transesterification; Canola oil; Eggshell (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:163:y:2021:i:c:p:1626-1636 DOI: 10.1016/j.renene.2020.10.039 Access Statistics for this article Renewable Energy is currently edited by Soteris A. Kalogirou and Paul Christodoulides More articles in Renewable Energy from Elsevier |
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