A feasible path-based approach for Dividing Wall Column design procedure

• A feasible path-based procedure allows to bypass the simulation failures due non-ideal thermodynamics or complex optimization algorithms. The proposed use a shortcut design provided by ProSimPlus® process simulator initialize algorithm coupled with rigorous simulations. Although “non-optimal”, DWC obtained via fulfills expectations both from an economic and environmental point of view respect equivalent distillation train. Process integration has become best practice over last years in separation units design. In particular, trains can be reduced single column shell means internal separating wall under name Dividing Wall Column. This configuration on average for 30% total costs reduction is more popular multicomponent mixtures purification. However, results much than one related series standard columns higher number sections side cuts. Moreover, case assisted design, model convergence very sensitive initial guess, resulting discontinuities sequence steps. this paper innovative based paths presented ABEW mixture study. Starting converged methods, trays increased removed proper section selected help composition profiles analysis. particularly effective separations, such as one, likely undergo failures. provides optimized solution really close optimal relatively short time without need solve MINLP problem.