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Dynamic model of a post-combustion absorption unit for use in a non-linear model predictive control scheme

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Author

  • Katrin Prölss
  • Hubertus Tummescheit
  • Stéphane Velut
  • Johan Åkesson

Summary, in English

With an increasing demand on load flexibility in power supply networks, advanced control systems for plants with carbon capture units gain in significance. Minimizing the energy demand for carbon dioxide removal under these circumstances is a major task of such a control strategy. In this work a dynamic model in Modelica of a chemical absorption process run with an aqueous monoethanolamine (MEA) is developed. Starting from a rather detailed dynamic model of the process, model reduction is performed based on physical insight. The reduced model computes distinctly faster, shows similar transient behavior and reflects trends for optimal steady-state operations reported in the literature. The model is intended to be used in the framework of JModelica.org, a platform supporting non-linear dynamic optimization.

Publishing year

2011

Language

English

Pages

2620-2627

Publication/Series

Energy Procedia

Volume

4

Document type

Conference paper

Publisher

Elsevier

Topic

  • Control Engineering

Keywords

  • Model
  • Absorption
  • CO2
  • Optimization
  • Nonlinear model predictive control
  • Modelica

Conference name

10th International Conference on Greenhouse Gas Control Technologies

Conference date

2010-09-19

Conference place

Amsterdam, Netherlands

Status

Published

Research group

  • LCCC

ISBN/ISSN/Other

  • ISSN: 1876-6102