Survey on Different Control Schemes for Distillation Columns

Distillation column is the widely used important parting technique in petrochemical industries, where purity of components plays an important role. Modeling of distillation column and control is considered to be an intricate task because the plant behavior is usually non linear and highly interactive. So a study of various control schemes was carried out. A survey on various control techniques that can be used for efficient control of the Distillation column was done. Several control techniques were deeply studied and analyzed. Also compared with each other, by considering their performance on the basis of parameters like settling time, overshoot etc.