Supercritical fluid technology in biodiesel production
A high methyl ester yield up to 98 was reported at a temperature of 220°C after 13 min of reaction at a pressure of 56 MPa and 08 wt NaOH In another study by Yin et al 49 a small amount of KOH was added to the reaction under SCMe and the yield of FAME reached 98 in 10 min at 160°C with a methanol to oil ratio of 241