Heterogeneous catalysts are promising catalyst for the transesterification reaction of vegetable oils to produce
biodiesel. In this study, the Pomacea sp. shell was used as the raw material for CaO catalyst. The calcination of
Pomacea sp. shell was conducted at 900ฐC for 2 h. The raw material and the resulting CaO catalyst were
characterized using X-ray diffraction, X-ray fluorescense spectrometry, and Fourier transform infrared spectroscopy
analysis. From the experimental results, it was found that the maximum yield of fatty acid methyl esters was
95.61% at the following reaction conditions: reaction temperature of 60ฐC, a reaction period of 4 h, a ratio of
methanol-oil at 7:1, and amount of catalyst at 4% w/w. The physical and chemical properties of biodiesel were
determined based on ASTM standard, and the values obtained were confirmed with the Indonesian National
Standard (SNI-04-7182-2006) and (B100)-ASTM D6751-07b.
Heterogeneous catalysts are promising catalyst for the transesterification reaction of vegetable oils to producebiodiesel. In this study, the Pomacea sp. shell was used as the raw material for CaO catalyst. The calcination ofPomacea sp. shell was conducted at 900ฐC for 2 h. The raw material and the resulting CaO catalyst werecharacterized using X-ray diffraction, X-ray fluorescense spectrometry, and Fourier transform infrared spectroscopyanalysis. From the experimental results, it was found that the maximum yield of fatty acid methyl esters was95.61% at the following reaction conditions: reaction temperature of 60ฐC, a reaction period of 4 h, a ratio ofmethanol-oil at 7:1, and amount of catalyst at 4% w/w. The physical and chemical properties of biodiesel weredetermined based on ASTM standard, and the values obtained were confirmed with the Indonesian NationalStandard (SNI-04-7182-2006) and (B100)-ASTM D6751-07b.
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