In this study, the level of free fatty acids in used oil are low at 0.73 %, hence, single stage transesterification was sufficient. Two process variables that been investigated were the molar ratio of methanol-to oil and ...

Waste cooking oil is generated in large amount all over the world. Hence, it has devised serious problems on its waste management. Disposal of waste cooking oil by pouring it into the drain and watercourse will result in ...