The effect of volume ratio of methanol and temperature on yields and properties of biodiesel from callophylum inophylum oil

Renewable energy is an alternative energy to anticipate the decrease of fuel oil. The vegetable oil based fuels are expected to reduce the dependence on unrenewable fuels. Calophyllum inophyllum oil is naturally organic, has similar physical properties with a mineral oil base. It was extracted from Calophyllum inophyllum plant which is abundant and called Nyamplung in Indonesia. So it is important to conduct research using callophlyum inophylum oil to produce an alternative biofuel. The aim of this work is to investigate the effect of methanol volume ratio and temperature on yield and properties of biodiesel. The methanol volume ratio was set up in a range of 5%, 10%, 15%, 20%, and 25% while temperature was 400C, 500C, 600C, 700C, and 800C. The results show that methanol volume ratio and temperature have an effect on biodiesel yield. The maximum yield of 83,7% was reached at methanol volume ratio of 20% and temperature of 60°C. The characteristics of biodiesel at that point are density value of 882 kg/m3, acid number value of 0.493 mg-KOH/G, and Iod number 22.84 G-I2/100g. These properties have fulfilled the standard quality of biodiesel according to SNI-7182:2015.