Biodiesel Production From Waste Cooking Oil Using Catalyst CaO Derived From Strombus canarium shells

In this article, we address the optimal biodiesel production through transesterification reaction using waste cooking oil, methanol and presence of calcium oxide (CaO) as a solid base catalyst. CaO catalyst was activated from calcined Strombus canarium shells, collected at Bangka Belitung Islands Province, Indonesia. X-Ray Diffraction and X-Ray Fluorescence (XRF) were applied to characterize the prepared catalyst. The transesterification process will produce methyl ester (biodiesel) yield of 83.5% was obtained in the optimum condition at the waste cooking oil to methanol molar ratio of 1:12, presence catalyst 3.0% wt relative to oil and temperature reaction of 65 oC for 4 h. The GC-MS analysis assured to identify the chemical composition of the synthesized biodiesel which contained methyl myristate and methyl palmitoleate as the dominant esters. As such, the uses of Strombus canarium shells as a catalyst source and waste cooking oil as a feedstock for biodiesel production. (paper)