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Judul:	Pengelolaan Lemak Sapi Menjadi Biodiesel Dengan Katalis Heterogen
Penulis:	A. Bandjar, I Wayan Sutapa, Rosmawaty & Nurlina Mahulau \|\| email: info@mx.unpatti.ac.id
Jurnal:	Indonesian Journal of Chemical Research Vol. 2 no. 1 - hal. 166-170 Tahun 2014 [ MIPA ]
Keywords:	Biodiesel, Heterogenous catalyst, esterification, beef tallow, methanol, transeterification
Abstract:	The research of utilitasion of beef tallow into biodiesel with heterogenous (CaO) catalyst has been conducted. Biodiesel production initially by esterification reaction with catalyst H2SO4 1% (toward oil and methanol weight) with molar ratio oil : methanol (1:9). After esterification process, trygliceride separated from methanol and continued by transesterification step with molar ratio 1:12 (oils and methanol) and CaO catalyst 11% wt. Esterification and transesterification process carried out for 2 hours and 6 hours respectively at 65 â„ƒ. Composition of the biodiesel was analyzed by 1HNMR, Gas Chromatography-Mass Spectrometry (GC-MS) and their physical properties analyzed by ASTM method. Result of biodiesel conversion is 93.99% while based on GC-MS analysis showed that mayor component of biodiesel were mixture of methyl esters with methyl octadecanoat as the major coumpound (40.65%). Based on data from ASTM, biodiesel produced from beef tallow have qualified as diesel fuel.
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