Pilot Plant for Testing Control Configurations of Binary Distillation Columns

Mihalache, Sanda Florentina; Pătrăscioiu, Cristian; Paraschiv, Nicolae

Sanda Florentina Mihalache, Cristian Pătrăscioiu, Nicolae Paraschiv

Pilot Plant for Testing Control Configurations of Binary Distillation Columns

Abstract:

Control structure design deals with the structural decisions of the control system, including what to control and how to pair the variables to form control loops. Although these are very important issues, these decisions are in most cases made based on experience and engineering insight, without considering the details of each problem. The paper addresses the problem of testing various control configurations for binary distillation columns (BDC). In this case the first thing to do is to select the best control configuration from plantwide control criteria. The proposed application Test BCC is a very useful tool to evaluate the resulted control configuration for distillation columns. This works within a pilot plant that can test simulated or real distillation column through DAQ modules. Other issues, discussed in the paper, include two-point composition control problem with a multivariable controller composed by a parametric decoupler and two monovariabile PI controllers. A practical example is used to demonstrate the pilot plant efficiency, identifying the best control configurations from potential structures. The limits of this approach for control configuration selection are also analyzed. The results in studying distillation column dynamics show the improved efficiency of proposed pilot plant over the previous schemes.

Keywords:
plantwide control; integrated design and control of chemical processes

Issue: 2008, Volume 59, Issue 8

Pages:

Publication date: 2008/9/9

https://doi.org/10.37358/RC.08.8.1921

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This article is published under the Creative Commons Attribution 4.0 International License

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