ALCHOLYSIS OF CORN OIL (Zea Mays (L)) USING NaOH CATALYSIS AT 1 ATM PRESSURE

Abstract

The increasing use of fuel oil makes the availability of fuel oil depleted, this is a challenge that must be anticipated by looking for other alternative energy sources as a renewable energy source. One of the alternatives that can be used is vegetable oil which can be used as raw material for making biodiesel. Biodiesel is an alternative energy obtained from animal fat or vegetable oil which can be used as fuel. One of them is corn oil. The manufacture of biodiesel from corn oil uses an alcoholysis process, where the triglyceride groups breakdown using alcohol to form esters and glycerol as a by-product.

The process of making biodiesel in this study uses corn oil, ethanol and NaOH as a catalyst. Performed using a three neck flask equipped with, heater, thermometer and magnetic stirrer as a stirrer. Samples were taken every 10 minutes, then the lower layer was analyzed for glycerol content by acetine to determine the conversion rate per part.

In this study the optimum conditions, found in 60 minutes, temperature 110 ° C, catalyst percentage 2.5%, stirring speed 350 ppm, and alcohol-oil ratio 5mg / mg. In that situation the conversion reached 0.7736 parts.