Simulation and Analysis of Propylene Distillation Process

The distillation process of propylene was simulated by Aspen Plus software.Through sensitivity analysis functions,the main operating conditions were optimized for the distillation process when the feeding quantity and composition were fixed.When the propylene purity of the distillate was specified as 99.6%,the effect of the feeding amount and feeding composition for separation result were analyzed using the design requirements functions of Aspen Plus.The greater feeding and the higher product quality requirements,the more energy consumed.Increasing the amount of the bottoms and decreasing the propylene recovery,the amount of the feeding propane was increased to meet the purity required of the distillate.