(598g) Use of Computer Modelling for Increase Efficienely of Methanol Synthesis Process

Osipenko, U. - Presenter, Saint Petersburg State Institute of Technology

A computer model of methanol synthesis was designed with the purpose of analysis and optimization in this work. Data for this work was taken from an actual industrial facility.

Methanol synthesis takes place on four shelves of reactor with bypassing cold gas, then methanol with water are separated from other gases. In the modeling, the reactor was presented in the form of four series-connected reactors, and implemented in the program HYSYS.

Performance analysis and improvement of technology of any chemical process require a mathematical description (mathematical model of the object). In this work, it was chosen the most suitable kinetic model of methanol synthesis. Based on the model implemented with the program HYSYS, we obtained dependencies for the thermal effects of reaction on pressure and temperature, made more exact estimation for the dependence for heat capacity of components on temperature, obtained equation for calculating the volatility of components in relation to the "pressure-temperature" working conditions.

Using this mathematical description of the process, the developed model of chemical-technological system for methanol synthesis was implemented using Borland Delphi programming environment.

The developed software allows you to perform these tasks: calculation of the circulating system of methanol synthesis, conducting computational studies to evaluate the effect of various parameters on the system as a whole, and tracking the system response to changes in these parameters, as well as calculation of the coefficient of catalyst activity.