基于ModiCon工艺的模拟移动床分离过程仿真和优化研究  

Simulation and Optimization in Simulated Moving Bed Separation Process Based on ModiCon Process

作　　者：刘阳 李凌 王港 LIU Yang;LI Ling;WANG Gang(College of Information Engineering,Shenyang University of Chemical Technology,Shenyang 110142,China)

机构地区：[1]沈阳化工大学信息工程学院,辽宁沈阳110142

出　　处：《化学与生物工程》2022年第4期56-62,68,共8页Chemistry & Bioengineering

基　　金：国家自然科学基金项目(60874057);国家高技术研究发展计划项目(2008AA042902)。

摘　　要：建立了模拟移动床分离数学模型,采用恒定进料策略和ModiCon进料策略对2种环酮(环戊酮和环庚酮)进行仿真分离实验,并采用NSGA-Ⅱ算法对ModiCon进料策略模拟移动床操作参数进行了优化。结果表明,在总进料浓度不变的前提下,与恒定进料策略相比,采用ModiCon进料策略的模拟移动床通过周期性调节进料浓度,萃余液口分离组分纯度从96.5%提高到了99.9%,分离组分浓度也提升30%以上,能更快达到满足生产要求的循环稳态;在限定分离组分纯度不低于99%的前提下,确定最大进料流量为1.27×10^(-7) m^(3)·s^(-1)。We established a simulated moving bed separation mathematical model,carried out simulation separation experiments of two cyclic ketones(cyclopentanone and cycloheptanone)by using constant feed strategy or ModiCon feed strategy.Moreover,we optimized the operation parameters of simulated moving bed based on ModiCon feed strategy by NSGA-Ⅱalgorithm.The results show that,under the premise of the same total feed concentration,compared with the constant feed strategy,the simulated moving bed based on ModiCon feed strategy can achieve the cyclic steady state,the production requirements can be more quickly met by periodically adjusting the feed concentration,the purity of separated components at the raffinate port can increase from 96.5%to 99.9%,and the concentration of separated components can improve by more than 30%.On the premise that the purity of separated components is not less than 99%,the maximum feed flow is determined to be 1.27×10^(-7) m^(3)·s^(-1).

关 键 词：模拟移动床 仿真实验 ModiCon进料策略 恒定进料策略 NSGA-Ⅱ算法 

分 类 号：TQ028[化学工程]