Wanodya Asri Kawentar

27 Desember 2011

Master Student,

System Engineering Department, Gadjah Mada University

Research title

Optimization of biodiesel production from second-used cooking oil.

Research outline:

Used cooking oils are oils that collected from waste oil in frying food. Many researches on converting used-cooking oils into biodiesel have been done, but the research have just focused on using the oil that collected from restaurant. These oils have just been used to frying 3 to 4 times. These oils are called first-used cooking oils. While the waste oils that collected from cadgers are called second-used cooking oil because they used the waste oil that collected from restaurant to cook.

            This study focused on analyzing the optimum condition in converting second-used cooking oil into biodiesel with esterification and transesterification. Sulfuric acid is used in esterification as an acid catalyst, while KOH is used in transesterification as a base catalyst. The research parameters are time, temperature, mol ratio, and percent catalyst. The process of utilize used-cooking oils into biodiesel is expected to be one of alternative in prosper waste utilization.