Temperature Control of Industrial Gas Phase Propylene Polymerization in Fluidized Bed Reactors Using Model Predictive Control
Ahmad Shamiri1,2M.A.Hussain1Farouq Sabri Mjalli3Arash Arami-Niya
1. Department of Chemical Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia2. Training Center, Razi Petrochemical Company, P.O. Box 161, Bandar Imam, Iran3. Petroleum & Chemical Engineering Department, Sultan Qaboos University, Muscat 123, Oman
摘要：A two-phase dynamic model describing gas phase propylene polymerization in a fluidized bed reactor which considers the polymerization reaction in both phases was used to explore the control of the reactor temperature by manipulating the heat exchanger cooling water flow rate.A model predictive control（MPC） technique is implemented to control of the nonlinear process and compared its performance with conventional PI controllers tuned using the Internal Model Control（IMC） method as well as the standard Ziegler-Nichols（Z-N） method.The closed-loop simulations revealed that the Z-N PI controller produced oscillatory responses and the MPC and the IMC-Based PI controllers were able to track the changes in the set point.However the quality of the MPC set point tracking was superior to that of the IMC-Based PI controller.
2011 3rd International Conference on Chemical, Biological and Environmental Engineering（ICBEE2011）