Transesterification of Waste Cooking Oil using CaO Catalyst Derived from Madura Limestone for Biodiesel Production and Its Application in Diesel Engine

In this study, we report biodiesel production from waste cooking oil using CaO catalyst derived Madura limestone through a transesterification reaction. Many quarries in can be used as heterogeneous catalysts because they are cheap, easy to separate, and have high basicity. Conversion of into calcination at 900°C for 3 hours. The formed was characterized X-Ray Diffraction (XRD), Fourier Transform Infra-Red (FTIR), Scanning Electron Microscopy-Energy Dispersive (SEM-EDX) instruments. Biodiesel the reaction analyzed GC-MS. Furthermore, blends pure diesel were prepared volume percentages (B-10, B-20, B-30, B-40, B-100) testing on engine performance. results highest torque brake horsepower (BHP) obtained fuel (S-100) 2.49 Nm 381.12 watts, respectively. lowest consumption 1500 rpm is produced B-20 0.186 kg/h. Overall, emission characteristics carbon monoxide (CO), nitrogen oxides (NOx), (NO) with concentration resulted rather than diesel.