Modeling an Exothermal Chemical Transformation in a Countercurrent Plug Reactor

— A mathematical model of an exothermal chemical transformation in a concurrent plug reactor is formulated. A criterion for the independence of the interaction of bubbles (drops) when they move in a dispersion medium is determined. A numerical analysis of the dynamics of the reactor reaching a steady operating mode is carried out. It is shown that the reactor reaches a steady mode through the maximum heating of the dispersion medium. With the increase in the parameter characterizing the independence bubbles, the difference between the maximum heating of the dispersion medium and the maximum heating of the steady mode decreases and, at large values of it, practically disappears. For a two-stage concurrent reaction, it is found that in the reactor, depending on the control parameters, the steady state can be realized in two modes: high-temperature and low-temperature. In this case, the transition to the steady mode occurs through the high-temperature state.