Research Article

Extruded Catalysts with Magnetic Properties for Biodiesel Production

Figure 3

Ethanolic sunflower biodiesel production of catalysts: (a) K2CO3/γ-Al2O3, (b) K2CO3/γ-Al2O3/(0.3)Fe3O4, and (c) K2CO3/γ-Al2O3/sepiolite/(0.3)Fe3O4, under reaction conditions: 5 wt.% mass of extruded catalyst, oil:ethanol molar ratio 1:12, 80°C, 200 rpm, and 4 h reaction time.
(a)
(b)
(c)