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Biodiesel production from non-edible forage turnip oil by extruded catalyst

2019; Elsevier BV; Volume: 139; Linguagem: Inglês

10.1016/j.indcrop.2019.111503

1872-633X

Eurípedes Garcia Silveira, Leticia Fernandes Tavares Barcelos, Victor Haber Pérez, Oselys Rodríguez Justo, Leonardo Campos Ramírez, Luiz de Moraes Rêgo Filho, Maria Priscila Pessanha de Castro,

Advanced Combustion Engine Technologies

Oil from forage turnip (Raphanus sativus L) was investigated as a potential non-edible feedstock for ethanolic biodiesel production via transesterification using extrudate pellets of K2CO3/Sepiolite. The mechanical, structural and textural properties of the catalyst were measured using dynamometry, TGA, B.E.T and CO2-TPD. Catalytic performance during biodiesel synthesis in a volumetric glass reactor was evaluated after 2 and 4 h, for different catalyst mass (2, 3 and 5 wt%), oil/ethanol molar ratios (1:6, 1:9 and 1:12) and reaction temperatures (50 and 70 °C). A 99.9% biodiesel yield was obtained after 4 h at 70 °C, with a 1:12 oil/ethanol molar ratio and 2 wt% catalyst. Thus, the use of forage turnip oil for ethanolic biodiesel production using a heterogeneous catalyst (instead of the conventional homogeneous route) is viable.