摘要
在甲醇低压羰基化制醋酸反应器内,化学反应与流体力学状况非常复杂。因此,反应器机理模型的建立是开发全流程仿真机过程中必须解决的问题。文中对甲醇低压羰基化制醋酸反应机理与动力学进行了深入研究,通过合理的简化假设以及物料衡算、热量衡算建立了醋酸反应器的机理模型。合理的简化假设极大地提高了模型求解的速度,满足了实时动态仿真的要求。仿真结果表明,达到稳态时的结果能很好地逼近实际值,动态过程也能很好地反映实际过程的变化趋势,并能对非正常工况进行仿真。该模型对醋酸反应器动态特性与控制方式的研究以及全流程仿真机的开发具有重要意义。该模型已成功应用于某化工厂的醋酸反应器全流程仿真机,取得了满意效果。
Chemical reaction and hydrodynamic status are very complicated in the reactor of acetic acid through low - pressure methanol carbonylation. So building a mechamism model for reactor is a problem needs to be solved in developing whole flow emluator. Thorough research on reaction mechanism and dynamics of low - pressure methanol carbonylation was done. A mechanism model was set up for reactor of acetic acid through rational predigestion and hypothesis and mass- energy conservation calculation. Rational predigestion and hypothesis heightened the velocity of model - soluting maximumly and met the requirement of real - time dynamic simulation. The simulation result accorded with production practice when reaching the steady state and the dynamic process could predict the changing trend. It could also simulate the accident condition. The model could be used not only for studying the dynamic characteristic, the control method of reactor, but also for developing whole flow emluator. The model had been applied to whole flow emluator of reactor of acetic acid of a chemical plant successfully and obtained satisfactory effect.
出处
《计算机仿真》
CSCD
2007年第5期83-86,共4页
Computer Simulation
关键词
甲醇羰基化
醋酸
反应器
仿真
Methanol carbonylation
Acetic acid
Reactor
Simulation
