PEMBUATAN BIODIESEL METIL ESTER DARI MINYAK JELANTAH DAN METANOL DENGAN KATALIS ABU GOSOK

Biodisel methyl ester research has been used waste cooking oil and methanol with ash replenishment as a catalyst.This research was doing to saw the effect of catalyst concentration on biodiesel from used cooking oil. The research used a Completely Randomized Design with five treatments is M1 (catalyst 2 g), M2 (catalyst 4 g), M3 (catalyst 6 g), M4 (catalyst 8 g) and M5 (catalyst 10 g) withing three replications. The data were analyzed using Analysis of Variance (ANOVA) and continued with DNMRT at 5% level. The research results has showed that the addition of a catalyst concentration of ash significantly (P 0,05) on the water content. The best treatment is M5 with acid number 0,71 mg KOH/g, total glycerol content of 0,01%, density 0,88 g/cm3, viscosity of 47,94 cSt, iodin number 66,83 gI2/100, water content of 0,06%, flash point 249,33°C, saponification number154,84 mg KOH/ g and levels of methyl ester 99,5%.