隔板塔应用于硅氧烷环体分离的模拟分析OA

The DWC(dividing wall column)is a fully thermally coupled separation device,which can achieve a sharp separation of three components through a distillation column.Compared with the traditional distillation sequence,the DWC has advantages in reducing energy consumption and saving investment.Two typical industrial separation processes for silicone cyclic methylsiloxane were introduced.On this basis,an energy-saving DWC process for separating cyclic methylsiloxane was proposed.Simulation analysis was conducted in Aspen Plus software to determine key operational parameters based on material properties and utility configurations.The optimized parameters included operating pressure of the DWC,liquid flow split ratio at the column top,vapor flow split ratio at the column bottom and concentration distribution profiles on different trays.The comparative analysis was performed with existing cyclic methylsiloxane separation processes in terms of operating temperature,operating pressure and comprehensive energy consumption.The simulation results demonstrate that the improved DWC process achieves a 38％reduction in comprehensive energy consumption compared to conventional industrial processes.