Ensuring the Stability of Operation of the Ethylene Region of a Chemical and Technological Complex for Processing Gases of Cracking and Pyrolysis by Taking into Account the Dynamics of the Processes

This work studies the dynamics of the processes of the ethylene region of a chemical–technological complex (CTC) and the reasons for the change in the activity of catalysts. The functions that take into account the nonstationarity of the processes are selected; their dynamic kinetic models are created; and, on the basis of complete mathematical descriptions, the problems of their optimal control are solved, which ultimately makes it possible to achieve the final goal of preserving the optimal performance of the target products found during the optimization of the processes of the CTC for the stationary conditions under which they pass.