The Effects of Molar Ratio of Glycerol 80% and Palm Oleic Acid on the Synthesis Process of Ester Glycerol

Abstract

Glycerol ester was synthesized by esterification of glycerol and palm olcic acid using methyl ester sulfonic acid (MESA) as catalyst. The purpose of this study was to obtain the best molar ratio in the esterification of 80% glycerol with palm olcic acid using 0.5% MESA catalyst. Glycerol 80%. was esterified by using a nitrogen stream at 180°C and a stirring speed of 400 rpm for 90 minutes. Results showed that the best molar ratio was 0.8: I (glycerol: oleic acid) which produced glycerol ester with the yield of 75.33%, density of 0938 g/cm3). acid number or 39 ml KOH/g sample, viscosity value of 92 eP (30·C), kinematic viscosity, of 53 cSt (40°C), flash point at 204°C. pour point at 0°C. and boiling point al 105°C.