Levchuk I. Optimal control of the catalytic reforming unit for production of high octane gasoline component

The dissertation offers a solution to the pressing problem of the catalytic reforming unit performance improvement through the creation and implementation of optimal control system based on the updated kinetic model. The updated mathematical model of catalytic reforming reactor unit has been developed. It describes the process in the form of series-connected models of separate reactors with individual tuning coefficients. The obtained model takes into account time changes in the activity of the catalyst in each reactor and it shows reduce of the error in the basic estimate indicators. The iterative neural-network method of the catalytic reforming mathematical model identification has been developed. It allows us to minimize the tuning coefficients search time. We have suggested the method of calculation of the optimal temperature distribution in the reaction mixture at the inlet of the catalytic reforming reactor depending on the aromatization of raw materials and the sensitivity of the process by the temperature control channel. The functional structure and the technical implementation of the two-level optimal control system based on the updated kinetic models have been presented. The software system "Mathematical Modeling and Catalytic Reforming Optimization" containing the numerical implementation of the methods and algorithms presented in the paper have been created.