Optimization of the Mass Yield in the Biodiesel Production from Chicken Viscera Oil

• Published in: Journal of the American Oil Chemists' Society 2021-01, Vol.98 (1), p.31-41
• Main Authors: Mazatto, Amanda Caroline Fernandes, Silva, Geovane Aparecido Ramos, Santos, Patricia Daniele Silva, Senes, Carlos Eduardo Rubio, Visentainer, Jesui Vergilio, Oliveira Santos, Oscar
• Format: Article
• Language: English
• Subjects: Biodiesel; Fatty Acids; Gas chromatography; Response surface
• ISSN: 0003-021X; 1558-9331
• DOI: 10.1002/aocs.12437

This work proposes the conversion of chicken viscera oil into biodiesel through the transesterification reaction using basic catalysis. For this, the properties of the raw material and the interferences of the variables on the mass yield of the chemical procedure were evaluated, such as reaction temperature (50–90 °C), catalyst concentration (0.5–2.5% m/m), oil: alcohol molar ratio (1:3 to 1:15) and reaction time (15–75 min).Through the execution of an experimental design procedure and subsequent application of the response surface methodology it was possible to maximize the yield of the transesterification reaction to 87.41% w/w, using the following experimental conditions: reaction temperature 70 °C, catalyst concentration 1% m/m, molar ratio 1:9, and reaction time 30 min. This result provides a reduction of 200% in the percentage of the catalyst used, 67% in the volume of alcohol, and 700% in the reaction time when compared to works using similar raw material published in the literature. Besides, the quality of the biodiesel produced was verified and is following the standards required by ASTM D6751 and EN 14214.