Modeling of simulated moving bed for xylene separation

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

doi:10.3969/j.issn.0438-1157.2013.12.010

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Modeling of simulated moving bed for xylene separation

更新时间：2025-12-10

- Modeling of simulated moving bed for xylene separation
- CIESC Journal Issue 12, Pages: 4335-4341(2013)
- 作者机构：
  
  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
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2013.12.010
  CLC： Q028.3
- Online First：05 December 2013，
  
  Published：05 December 2013
- 稿件说明：
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YANG Minglei, WEI Min, HU Rong, et al. Modeling of simulated moving bed for xylene separation[J]. CIESC Journal, 2013, (12): 4335-4341.
DOI：

YANG Minglei, WEI Min, HU Rong, et al. Modeling of simulated moving bed for xylene separation[J]. CIESC Journal, 2013, (12): 4335-4341. DOI： 10.3969/j.issn.0438-1157.2013.12.010.

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。

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.

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