ABSTRACT
Online control of chemical process is an important issue in order to ensure the process security and good product quality. Polymerization processes are part of those processes that can be exothermic, rapid and sensitive to impurities. For this reason, modelling monitoring, and control of these processes is of high importance in order to optimize the process productivity. Modelling gives a good comprehension of the process and allows us to relate the process inputs (or manipulating variables) to the process outputs (or the process measurements). Online monitoring is important to obtain real information on the evolution of the process and to detect any deviation in its course. Online control allows then the correction of this deviation by manipulating the process parameters. In this work, nonlinear geometric control is used to control the heat produced by the reaction, the concentration of monomer in the reactor and the reaction rate coefficient in order to minimize the process time and ensure its security.
