The super critical bio diesel production process has some disadvantages such as: high reaction temperature,large molar methanol-to-oil ratios (R) and large energy consumption. To mitigate these problems, an energy integrated process in which bio diesel is obtained in a continuous tubular reactor operating at a reaction temperature of 280 °C, R=20, a residence time of 1 h and a pressure of 110 bar, is proposed. A low-cost lipid feed stock(chicken oil) was used as raw material for testing the process. The enthrall content of the stream exiting hypercritical reactor was used to eliminate the unrelated methanol in an adiabatic flash drum. The operating conditions of the adiabatic flash were optimized to meet the specification of water and methanol content in the bio diesel phase and minimize the ester and acid content in the vapor phase. These conditions were: P=0.1 bar and T=178 °C. For these conditions the methanol content is 88–90% in the vapor phase and lower than 0.2% in the bio diesel phase. A scheme was developed for an energy integrated process maximizing the heat recovery. Composition,temperature and pressure of the streams were determined and also the amount of heat exchanged in each unit. In order to fulfill the quality restrictions the final content of FFA in the bio diesel product had to be further adjusted by adsorption over bleaching silica.