Biodiesel Production from Waste Coocking Oil with CaO Heterogeneous Catalyst from Egg Shell

Nowadays, the substitute for biofuel diesel fuel is biodiesel. Waste cooking oil has potential as a biodiesel feedstock due to its environmentally friendly, inexpensive, reduces household waste and does not compete with food needs. Generally, catalyst used in homogeneous but disadvantages. One effort that can be done use CaO from eggshell waste. Eggshells contain 95,28% CaCO3 which calcined produce CaO. In this research, production of by using eggshells various variables determine best calcination conditions preparation catalyst. The were at variable temperatures (600,700,800 900°C) during time (2,3,4 5 hours). operating transesterification reaction 60°C 2hours stirring speed 700rpm mole ratio methanol 1:12. results obtained, producing catalysts temperature 900°C 2 hours 75.90% mass recovery. addition, achieved yield FAME 64,56% density 0.8573 gr/mL viscosity 7.18 cSt.