Abstract
The purpose of this study is to evaluate the feasibility of used waste cooking oil as an alternative fuel in diesel engines. In this work, biodiesel was produced from lipase-catalyzed hydrolysis of waste cooking oil (WCO) followed by esterification of the hydrolyzed WCO. The hydrolysis of acylglycerin was carried out at 30°C in sodium and the esterification of WCO was carried out at 40°C with methanol in a solvent hydroxide medium. In this study, waste cooking oil was prepared to waste cooking oil generated from the franchise chicken stores, and applied to a diesel engine to confirm the possibility and cost-effectiveness of biodiesel waste cooking oil. The results showed that WCO is a promising feedstock for use in the production of biodiesel. As a result, biofuels of used waste cooking oil showed slightly higher of specific fuel consumption, and NOx. As carbon monoxide and soot were decreased, also decreased pressure was decreased but the rate of pressure rose.
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