A review: control of reactive divided wall distillation column

The objective of this review paper is to survey of future and present status in the field of control of a reactive distillation column and reactive divided wall column. Different studies show that designing, operation and process of RD column is highly complex task due to process nonlinearity and complex interactions between the vapour ? liquid equilibrium and chemical reactions. Different types of control techniques have been studied in reactive distillation, a simple proportional integral (PI) controller, proportional?integral?derivative controller(PID) controller, model predictive controller (MPC) such as dynamic matrix control (DMC), quadratic dynamic matrix control (QDMC) and mixed integer dynamic optimization (MIDO). The design of controllers and controller performance is important in industries to optimize energy conservation, cost effectiveness and performance of process operation. The main objective of control is to maintain the product purity.