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模拟移动床(Simulated Moving Bed,SMB)技术作为主要的吸附分离技术,近年来在石油化工、精细化工、生物医药和食品工业中得到广泛的应用。如何基于模拟移动床的机理数学模型进行优化,以提高模拟移动床分离过程的经济效益,是模拟移动床研究领域的热点问题之一。模拟移动床过程具有复杂的动态特性,例如,由于出入口切换带来的混杂、非线性以及延迟特性。另一方面,由于对过程干扰和系统不确定性的高灵敏性,使得模拟移动床过程在操作点处的鲁棒操作仍然是一个研究的重点。以模拟移动床过程为研究背景,在阐述其工作原理的基础上,通过对模拟移动床过程的不同分区情况以及柱配置情况进行研究,得到了模拟移动床模型的结构优化过程描述,然后通过在不同目标函数情况下进行优化结果:的比较,说明模拟移动床过程结构优化的可行性,对进一步的控制方案设计具有一定的指导意义。以模拟移动床过程为研究背景,在阐述其工作原理的基础上,通过对模拟移动床过程的不同分区情况以及柱配置情况进行研究,得到了模拟移动床模型的结构优化过程描述,然后通过在不同目标函数情况下进行优化结果:的比较,说明模拟移动床过程结构优化的可行性,对进一步的控制方案设计具有一定的指导意义。
Simulated Moving Bed (SMB) technology, as the main adsorption separation technology, has been widely used in petrochemical industry, fine chemical industry, biomedicine and food industry in recent years. How to optimize the mathematical model based on the mechanism of simulated moving bed so as to improve the economic benefits of simulated moving bed separation is one of the hot issues in the field of simulated moving bed research. Simulating a moving bed process has complex dynamics, for example, promiscuous, nonlinear, and delay characteristics due to port switching. On the other hand, due to the high sensitivity to process disturbances and system uncertainties, the robust operation of the simulated moving bed process at the operating point remains a research focus. Based on the simulation of the moving bed process and its working principle, the structural optimization process of the simulated moving bed model was studied by studying the different partitioning of the simulated moving bed process and the column configuration. Then, The result of optimization under different objective functions: The comparison shows that the simulation of moving bed process structure optimization is feasible and has certain guiding significance for further control scheme design. Based on the simulation of the moving bed process and its working principle, the structural optimization process of the simulated moving bed model was studied by studying the different partitioning of the simulated moving bed process and the column configuration. Then, The result of optimization under different objective functions: The comparison shows that the simulation of moving bed process structure optimization is feasible and has certain guiding significance for further control scheme design.