ANALYSIS OF THE DYNAMIC BEHAVIOR OF DISTILLATION TRAINS

A detailed study on the dynamics of distillation trains has been carried out by simulating the behavior of multiple distillation column processes (with and without recycle streams). By analyzing the dynamic behavior, potential design, operability and control problems have been identified. Based on the dynamic analysis, design procedures by which nonlinear behavior of the columns can be eliminated and suitable control strategies applied, are presented. Numerical results illustrating the analyis of above and the application of the proposed procedure are also presented.