PENGARUH RASIO MINYAK : METANOL PADA KONVERSI BIODIESEL MENGGUNAKAN KATALIS LIMBAH TERUMBU KARANG
Abstract
Research about utilization of coral reef waste as a catalyst to optimize the
production of biodiesel based on soybean oil. Coral reefs that are still dirty are
cleaned and then calcined at 900 ºC for 4 hours to remove impurities and facilitate
smoothing. The catalyst was then characterized using XRD (X-Ray Difraction)
instrumentation, SEM (Scanning Electron Microscope) and FTIR (Fourier
Transform Infra Red), it aims to identify and prove the presence of calcium oxide
on coral reef catalysts. In this experiment, we also studied the effect of oil:
methanol ratio with a variation of 1: 3; 1: 5 and 1: 7 oil to methanol. This research
uses reflux method because it is more efficient for making biodiesel and heat
resistant material properties. The result of research prove that the CaO catalyst can
accelerate the transesterification reaction of biodiesel formation. From the
conversion of biodiesel, it can be concluded that the more amount of methanol in
biodiesel conversion is 1: 7 with 10 mL of oil and 70 mL of methanol produces
the largest percent yield of 96.5%.
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