High Temperature Biodiesel (Biological Diesel Oil) Preparing Method 1) Heat the methanol to 150 °C ~ 180 °C, and heat animal or vegetal oil to 250. C ~ 380 °C 2) Heat the vegetal methanol at a molar ratio of 20:1 to 55:1, and inject pressure vessel at the reaction pressure of 10Mpa ~ 14Mpa. … Read More