Dynamic Simulation And Optimization Of Acetic Acid Synthesis Reactor

The dynamic process simulation of the acetic acid through low-pressure methanol carbonylation has been studied systemically in this paper, and the synthesis reactor is the main object of the study.As the acetic acid effect association between molecules, making the whole system deviates severely from ideal conditions. Acetic acid not only in the liquid phase has a strong non-ideal nature, and in the gas phase even at low pressure also has a very obvious effect of the association. Therefore, this paper uses NRTL equation to amend its non-ideal nature of the liquid, and the association coefficient is introduced for vapor phase.By analyzing the reaction kinetics and reaction mechanism of the acetic acid synthesis process, six independent reactions can be confirmed through stoichiometric coefficient matrix method. On the basis, thorough research has been done to the reactor, and put forward a reasonable simplifying assumptions, combined with material balance and energy equations to build up the mathematical model for mathematical model. In the process of solving mathematical models, choose the appropriate Euler method to solve these Ordinary Differential Equations. For the dynamic simulation system, all modules are connected together and become a whole mathematics module by sequential model method. The results show that the results achieved steady state value are close to the industrial design value which meet the industrial reactor simulation accuracy, that shows the correctness of the mathematical model. Using the mathematical model to optimize the operating conditions of the synthesis reactor, and get a good result.