Comparative analysis of different control techniques for a distillation column

This paper provides a comparative analysis of different control strategies used to control the top and bottom product of binary distillation column. Classical Wood and Berry model has been considered as the model of distillation column and the controller is designed considering a non-interacting process. Performance evaluation of different controllers such as internal model controller (IMC), lead-lag IMC, smith predictor IMC and feed forward IMC controller has been carried out in this paper. Set point regulation and disturbance rejection property of the controller is evaluated.