Laboratory-Scale Research of Non-Catalyzed Supercritical Alcohol Process for Continuous Biodiesel Production

This work investigates the non-catalyzed supercritical methanol (SCM) process for continuous biodiesel production. The lab-scale setup was designed and used production in temperature range of 520–650 K 83–380 bar with an oil-to-methanol molar ratio ranging from 1:5 to 1:45. experiments were performed coiled plug flow tubular reactor. volumetric rate methanol/oil ranged 0.1–10 mL/min. examines a new reactor technology involving preheating pre-mixing mixture reduce cost increase yield under same reaction conditions. Work showed that FAME’s increased rapidly pressure above critical points (i.e., 513 79.5 bar). best methyl-ester using this 91% at 590 351 bars 39 15-min residence time. Furthermore, kinetics free catalyst transesterification studied different