Production Biodiesel from Vegetable Oils Using Duck Egg Shell Catalyst

Abstract

Population growth causes energy needs to increase. Energy needs in Indonesia currently still depend on petroleum fuel. This research aims to determine the effect of the concentration of adding catalyst from egg shells on the production of biodiesel and determine the quality of biodiesel produced using egg shell catalyst. This research was carried out in 2 stages, namely catalyst preparation and the biodiesel manufacturing process. In catalyst preparation, egg shells that have been washed clean are then dried and crushed, then calcined using a furnace at a temperature of 1000°C for 7 hours. Next is the stage of making biodiesel using the conventional method which is carried out with variations in catalyst concentration of 1%, 2%, 3%, 4% and 5% (w/w). The research results showed that the best product yield was 78% at a concentration of 3% in 2 hours with a specific gravity of 0.889 gr/cm3 and a viscosity of 5.74 cSt.