Optimization of Petroleum Rectification for ReducingTemperature Overlapping of the Products

Temperature overlapping is always considered in petroleum rectification. In this study, a mechanism is suggested to remove the temperature overlapping in distillation curve for rectification units which their feeds are liquefied petroleum. In this mechanism, firstly the unit is simulated and then is optimized by defining an objective function. Finally, operating conditions were determined without temperature overlapping in the distillation curve. Steps for defining the objective function are also presented. Optimization of a petroleum refinery by the presented mechanism shows considerable reduction in temperature overlapping of the distilled products and pushing them into appropriate operating range. Furthermore, applying the optimized conditions to the unit will be beneficial by 2958486 $/yr