Dynamic Simulation and Control of Intensified Chemical Processes

• Published in: Control and Safety Analysis of Intensified Chemical Processes p. 1
• Main Authors: Feng, Zemin, Rangaiah, Gade Pandu
• Format: Book Chapter
• Language: English
• Published: Weinheim, Germany John Wiley & Sons 2024; Wiley‐VCH GmbH
• Subjects: Chemistry & Chemical Engineering; Control Systems; dynamic simulation; dynamic simulator; extractive dividing‐wall column; General References; process control; Process Design, Control & Automation; process intensification
• ISBN: 3527352627; 9783527352623
• DOI: 10.1002/9783527843657.ch4

Dynamic simulation is important to understand and evaluate the transient behavior of chemical processes as well as the performance of the associated control system under time‐dependent disturbances. It is more complex and computationally challenging than the steady‐state simulation due to the existence of time‐dependent state variables. This chapter first introduces the principles and applications of dynamic simulation of chemical processes, as well as the commonly used software for dynamic simulation. Then, a detailed procedure for conducting dynamic simulation and control of intensified chemical process es ( ICP s) is presented. It involves five steps: steady‐state process simulation and optimization, preparation/initialization for dynamic simulation, control structure design, tuning of controller parameters, and analysis of dynamic simulation results. Then, variables related to process control, typical control loop, and control degrees of freedom ( CDOF ) are outlined. Subsequently, the need for and difficulties in the dynamic simulation and control of ICPs are summarized. Finally, a case study on dynamic simulation and control of an ICP, namely, extractive dividing‐wall column ( EDWC ), is presented and discussed.