Investigation of Control Structures for a Four‐Product Laboratory Multiple Dividing‐Wall Column Using Dynamic Simulation,Chemical Engineering & Technology

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Investigation of Control Structures for a Four‐Product Laboratory Multiple Dividing‐Wall Column Using Dynamic Simulation
Chemical Engineering & Technology ( IF 1.8 ) Pub Date : 2020-11-26 , DOI: 10.1002/ceat.202000557
Ulrich Preißinger ₁ , Goran Lukač ₂ , Igor Dejanović ₂ , Thomas Grützner ₁

Affiliation

The dynamic behavior of a multiple dividing‐wall column pilot plant is evaluated by means of dynamic simulation. Three different control structures are developed or adapted from the literature, which are constrained by the actual design features of the pilot plant column. Since in the present case the design of the column was chosen such that very different mixtures can be separated, it cannot be optimally designed for each of these potential mixtures. Rather, the design focused on the flexibility of the plant. All three investigated control structures were tested on feed flow rate and feed composition disturbance and allowed a robust control of the pilot plant, whereby control structure 2 is slightly better than others in terms of steady‐state deviations and less pronounced fluctuations during the dynamic phase. The transferability of control structure 2 to other variants of multiple dividing‐wall columns is easily possible.

中文翻译：

基于动态仿真的四产品实验室多分隔壁塔控制结构研究

通过动态仿真来评估多分隔墙中试装置的动态行为。从文献中开发或改编了三种不同的控制结构，这些结构受中试设备塔的实际设计特征的约束。由于在当前情况下，色谱柱的设计要选择为可以分离出非常不同的混合物，因此无法针对这些潜在混合物中的每一种进行最佳设计。相反，设计侧重于工厂的灵活性。对所有三个研究的控制结构进行了进料流速和进料组成扰动测试，并实现了对中试装置的鲁棒控制，因此，在动态阶段，稳态结构和不明显的波动方面，控制结构2略优于其他控制结构。

更新日期：2021-01-20

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