Design and simulation of model predictive control for multivariable distillation column

Distillation is fundamental separation processes in the chemical and petrochemical industry. Keeping a constant product composition in a distillation column is of great importance from an economical aspect. Difficulties arise because of multitude of potential variable interactions and disturbance in the system. Wood and berry being the transfer function model, is widely accepted for continuous process of distillation column. The goal of this paper is to design advance control strategy for MIMO system. PID control with and without de-coupler is also implemented and compared with model based predictive control using MATLAB.