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Judul:	Optimasi Kondisi Reaksi Transesterifikasi Pada Pembuatan Biodiesel Dari Lemak Sapi
Penulis:	Rosmawaty, A. Bandjar & Suntoro Gunoroso \|\| email: rose@fmipa.unpatti.ac.id
Jurnal:	Indonesian Journal of Chemical Research Vol. 2 no. 2 - hal. 213-222 Tahun 2015 [ MIPA ]
Keywords:	Biodiesel, beef tallow, KOH, methanol, transesterification.
Abstract:	Biodiesel synthesis has been done from beef tallow through two step, esterification and transesterification reactions. Esterification process is done by using H2SO4 1M as a catalyst, methanol 1:9, temperature of 60-65Â°C, and for 3 hours. After separated between methanol and trigyceride, then proceed to the process of transesterification. To obtain the optimum reaction conditions then used some transesterification process variables, there are: the weight percentage catalyst of KOH between 0.1, 0.5, 1; 1.5, and 2%, the reaction time of 1-5 hours and the reaction temperature between 50 -70 oC. Optimum conditions of transesterification reaction for the synthesis of biodiesel derived from beef tallow with KOH catalyst is as follows: the weight percentage of 1% KOH catalyst, the reaction time of 3 hours and the reaction temperature of 65 oC. The results of physical testing of biodiesel fuel by ASTM method includes specific density of 0.8675 g/cm3, kinematic viscosity of 4.971 mm2/s, flash point of 134.5oC, pour point of 27oC, the Conradson carbon residue of 0.018%, and the copper corrosion-pieces of 1B.
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