Abstract
AbstractHeat integrated plants involving exothermic chemical reactions show a degree of positive feedback and instability when trying to control the outlet temperatures of process‐to‐process, feed‐effluent heat exchangers. This is the case for the hydrodealkylation (HDA) of toluene process. In this study a 2 × 2 Model Predictive Control (MPC) scheme was implemented for the first time on a dynamic simulation of the HDA Plant. Comparison of its performance against the classical Ziegler‐Nichols and IMC tuning techniques for PI control was also carried out. The performance tests implemented suggest that PI control and MPC implemented over PI control are good choices to control this heat‐integrated plant.
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