Analisis Pengaruh Temperatur Reaksi dan Konsentrasi Katalis KOH dalam Media Metanol Terhadap Perubahan Karakteristik Fisika Biodiesel Sawit

Abstract

Transesterification of palm oil has been conducted in methanol media by KOH catalyst at reaction temperature and catalyst concentrations. The variation of various reaction temperature (['1: 3d'C, T2: 500C, T3: 70°C) and the variation of catalytic concentration (K1= 0,375% w/w, K2 = 0,500% w/w, K3 = 0,625% w/w) in the transesterification will result in characteristic Biodiesel/ physic of variants of palm oil (T1K1, T1K2, T1K3, T2K1, T2K2, T2K3, T3K1, T3K2, T3K3). The characteristic that was tested includes the viscosity, density/ash point, and water content. Methyl ester which was obtained in every treatment was separated, washed, filtered and purified by distillation at the temperature of 110°C, which was then characterized. The tested Biodiesel in fact, has a linier corretation with the change of reaction temperature as well as the catalytic concentration except for the flash point The viscosity has a minimum rate of 2.4571 cSt on a temperature 30 °c and its catalyst concentration of 0.375% w/w and its maximum 2.5221 cSt on temperature 70 °c still on the catalyst concentration 0.6255% w/w. The density has an maximum rate of 0.8750 grlcm3 on temperature 70 ° C and minimum rate of 0.8650 grlcm3 on each catalyst concentration., Noted that flash point is impacted on the reacting temperature or catalyst concentration as used The water content has an minimum rate of0.0263% on temperature 70 °c with a catalyst concentration 0.625% w/w and maximum rate of0.0474% obtained on the reacting temperature 30°C on the catalyst concentration of 0.375% w/w.