Purification of Glycerol from Biodiesel Production
Purification process of glycerol from biodiesel production was optimized. Results indicated that with system pH at 4-5, weight ratio of methanol to crude glycerol at 1.0 and alum solution (2wt%) to crude glycerol at 0.6, glycerol with purity at 95.48wt%±1.66wt% was obtained. Results would provide basic data for industrial purification of glycerol from biodiesel production with palm oil as raw materials.