Modeling of simulated moving bed for xylene separation

doi:10.3969/j.issn.0438-1157.2013.12.010

CIESC Journal ›› 2013, Vol. 64 ›› Issue (12): 4335-4341.DOI: 10.3969/j.issn.0438-1157.2013.12.010

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Modeling of simulated moving bed for xylene separation

YANG Minglei, WEI Min, HU Rong, YE Zhencheng, QIAN Feng

Key Laboratory of Advanced Control and Optimization for Chemical Process, Ministry of Education, East China University of Science and Technology, Shanghai 200237, China

Received:2013-05-31 Revised:2013-07-20 Online:2013-12-05 Published:2013-12-05
Supported by:
supported by the National Basic Research Program of China (2012CB720500)，the National Natural Science Foundation of China (U1162202，21206037，61222303)，the High-tech Research and Development Program of China (2013AA040701),Shanghai Leading Academic Discipline Project (B504) and the Postdoctoral Science Foundation of China (2013M531143).

二甲苯模拟移动床分离过程建模与仿真

杨明磊, 魏民, 胡蓉, 叶贞成, 钱锋

华东理工大学化工过程先进控制和优化技术教育部重点实验室, 上海 200237

通讯作者: 钱锋
作者简介:杨明磊（1985- ），男，博士后。
基金资助:
国家重点基础研究发展计划项目（2012CB720500）；国家自然科学基金项目（U1162202，21206037，61222303）；国家高技术研究发展计划项目（2013AA040701）；上海市重点学科建设项目（B504）；中国博士后基金项目（2013M531143）。

Abstract

Abstract: Simulated moving bed (SMB) is an important technology in xylene isomers separation.The reflux ratios of SMB in each zone are of key importance in determining the purity and recovery of PX.On the basis of the true moving bed (TMB) modeling scheme and industrial data,the SMB mechanism model is established.The operation interval for the reflux ratio is obtained via analyzing the effect of reflux ratio on the purity and recovery of PX product.The results show that the TMB modeling scheme performs great in describing the industrial SMB,and the analysis based on the mechanism model facilitates the design and operation of a SMB for PX separation.

Key words: xylene, moving bed, adsorption, separation, modeling

摘要： 模拟移动床（SMB）是混合二甲苯分离的重要技术。模拟移动床区域回流比是决定产品质量的关键参数。在真实移动床（TMB）建模方法基础上，结合实际工况数据，建立了模拟移动床吸附分离过程机理模型，并通过分析区域回流比对产品质量的影响，得到不同产品质量要求以及进料品质的情况下区域回流比的操作区间。仿真结果表明，TMB建模方法能较好地描述模拟移动床实际工况。基于机理模型对操作区间的分析结果可以为模拟移动床分离过程的工艺设计和操作提供指导意见。

关键词: 二甲苯, 移动床, 吸附, 分离, 仿真

CLC Number:

TQ028.3

YANG Minglei, WEI Min, HU Rong, YE Zhencheng, QIAN Feng. Modeling of simulated moving bed for xylene separation[J]. CIESC Journal, 2013, 64(12): 4335-4341.

杨明磊, 魏民, 胡蓉, 叶贞成, 钱锋. 二甲苯模拟移动床分离过程建模与仿真[J]. 化工学报, 2013, 64(12): 4335-4341.

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Modeling of simulated moving bed for xylene separation

二甲苯模拟移动床分离过程建模与仿真

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