RESEARCH OF THE CHEMICAL REACTION OPTIMALITY CRITERION FOR TECHNOLOGICAL PROCESS REALIZATION

Abstract

The optimality criterion of the chemical reaction by the Euler method was investigated in the search for the most suitable reactor design for the realization of the technological process. The optimality criterion corre- sponds to the minimum of the surface of the compared apparatus of a particular chemical reaction with the calculation of a number of reactors, which allows to achieve a minimum investment in the construction in proportion to the material capacity of the apparatus. A system of simple differential equations reflecting the formal model of the chemical reac- tion kinetics was solved by a first-order method. The Euler method scans the time axis with steps, using the recurrence relation to calculate the concentration of the component in the step from the results of calculating the concentration of this component in the previous step. In PascalABC. NET with the ability to determine the necessary duration of the reaction and the output of intermediate values of the concentrations of the reaction components at the reference points, a calculation was made with the ini- tial concentration of the component. The values of the most suitable design of ideal displacement reagents and ideal mixing were determined for this process. The models of ideal mixing of periodic and flowing action, as well as an ideal displacement reactor, are analyzed. Mathematical models were for- mulated and kinetic calculation results were obtained with reaction time values and apparatus volumes at which the yield of the target product was the highest. In the course of the examination, as optimality criterion of the surface of reactor construction was found and, in comparison with these devices, the efficiency of the ideal intermixing model of batch action was noted.