Solid oxides are the most used catalyst for the synthesis of biodiesel, one of which is calcium oxide (CaO). This research reports the synthesis of CaO catalysts sourced from chicken eggshells through the calcination process. Chicken eggshells were cleaned and dried for 24 h at 120 o C. The eggshells were then calcined at temperatures varying from 600 o C to 900 o C for 6 h and the resulted sample were characterized by FTIR and XRD. The biodiesel synthesis was conducted at 65 ºC with a reaction time of 2 h and the concentration of catalyst was varied at 3 wt%, 6 wt%, and 9 wt%. The optimal biodiesel synthesis was obtained at a concentration of CaO catalyst formed at a calcination temperature of 900 ºC at 9 wt%. The yield of biodiesel conversion was obtained at 81.43 % and glycerol was produced as a by-product
Lizda Johar Mawarani, Thomas Andherson Sihombing, Doty Dewi Risanti, Muhannad Illayan Massadeh, Dwi Prananto. (2021) Utilization of Chicken Eggshells as Catalyst in Biodiesel Synthesis from Waste Cooking Oil, , Proc. of the PAS: A;58, No. S.
