Biodiesel Production Using Supercritical Methanol with Carbon Dioxide and Acetic Acid

Figure 1

Schematic diagram of the supercritical reaction system: E, reaction vessel; H, heater and jacket; P1, high-pressure liquid pump; P2, super-critical CO₂ pump; V1~3, high-pressure valves; V4, back-pressure valve; V5, release valve; PG, pressure gauge; TG, temperature gauge.