MODELING OF CARBONIZATION AND ABSORPTION PROCESSES IN SODA ASH PRODUCTION

The article considers the problem of modeling the ammonia-soda process of soda ash production and presents the chemistry of sodium bicarbonate (NaHCO₃) formation. The equation of the kinetics of the reaction, used as a model of the carbonation process, is derived from a system of equations and its computer model is compiled. The system of differential equations reflecting the kinetics of the process was solved in the Mathcad package. The result of the modeling is presented. Based on the experimental data, the dependence of the absorption column performance on temperature and the dependence reflecting the optimal value of the absorption zone on the value of carbon dioxide flow rate in the range from 3500 to 9000 m3 /hour and the value of the refrigeration zone depending on the CO2 supply is revealed. The results of the modeling are presented.