Biodiesel from Rapeseed and Sunflower Oil: Effect of the Transesterification Conditions and Oxidation Stability

Elena Khan, Kadir Ozaltin, Damiano Spagnuolo, Andres Bernal-Ballen, Maxim V. Piskunov and Antonio Di Martino ()
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Elena Khan: Research School of Chemistry & Applied Biomedical Sciences, Tomsk Polytechnic University, Lenin Avenue 43, Tomsk 63400, Russia
Kadir Ozaltin: Centre of Polymer Systems, University Institute, Tomas Bata University in Zlin, Nam. T.G.M. 5555, 76001 Zlin, Czech Republic
Damiano Spagnuolo: Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Salita Sperone 31, 98166 Messina, Italy
Andres Bernal-Ballen: Facultad de Educación, Grupo de investigacion Conciencia, Universidad Antonio Nariño, Calle 22 sur No. 12D-81, Bogota 111821, Colombia
Maxim V. Piskunov: Heat Mass Transfer Laboratory, Tomsk Polytechnic University, Lenin Avenue 43, Tomsk 63400, Russia
Antonio Di Martino: Research School of Chemistry & Applied Biomedical Sciences, Tomsk Polytechnic University, Lenin Avenue 43, Tomsk 63400, Russia

Energies, 2023, vol. 16, issue 2, 1-13

Abstract: In this study, we produced biodiesel fuel from two vegetal sources, rapeseed oil and sunflower oil, by transesterification reaction. The study aims to evaluate the impact of type of alcohol, its concentration and the reaction time, while keeping constant the temperature and the catalyst on the yield and quality of the biodiesel. For alcohol, methanol and ethanol were used at a molar ratio with the oil from 3 to 24. Transesterification was performed at various reaction times; 20, 40, 60 and 90 min for each oil and defined alcohol:oil molar ratio. The influence of these parameters on the biodiesel yield and properties were investigated in terms of density, viscosity, heating value, flash point, elemental content, density and oxidative stability of the final product. The benefit of oxidation stabilizers, catechol and 4-allyl-2,6-dimethoxyphenol was investigated. Results demonstrate that for rapeseed oil, the optimum reaction conditions to obtain a higher yield and quality of biodiesel were an alcohol:oil molar ratio of 15:1, with 60-min reaction time at 50 °C; while in the case of sunflower oil, the best yield and biodiesel quality were at an 18:1 molar ratio, with a 40-min reaction time and at 50 °C. In both cases, methanol provides the highest yields of biodiesel, and the obtained products satisfy the required standards and present a similarity with mineral diesel tested in same conditions.

Keywords: biofuel; rapeseed oil; sunflower oil; transesterification; catechol; 4-allyl-2,6-dimethoxyphenol (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (6)

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