Latif Sahubawa
Jurusan Perikanan & Kelautan, Fakultas Pertanian UGM
Process of the transesterification reaction of sardine flour oil waste with NaOH as base catalyst in producing biodiesel was conducted. The research purpose has studied the influence of NaOH concentration in transesterification process and examine its effect on the quality of biodiesel production, conversion, and physialc quality. The variables that analysed was the effect of NaOH concentration as catalyst (0,5%, 1,0%, 1,5%, and 2,0% from amount of oil and methanol) in the transesterification reaction step. The result showed that the increasing NaOH concentration (0,5% until 1,5%), enhanced the biodiesel conversion (%). The highest conversion of biodiesel was achieved by using 1,50% NaOH (w/w) with 45,34% biodiesel conversion. The major component in the biodiesel was methyl palmitate (20,31%). ASTM analysis data also supported that the biodiesel product was in agreement with automotive diesel fuel specification.
Keywords: catalyst, transesterification, biodiesel, quality, wastes