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Online identification of adsorption isotherms in SMB processes via efficient moving horizon state and parameter estimation

In this paper, a concept to identify the adsorption isotherm of Simulated Moving Bed processes online during the operation is proposed. The influence of model parameters on the measurements is analyzed by a sensitivity analysis which enables to identify the set of parameters that can be estimated si...

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Bibliographic Details
Main Authors: Küpper, Achim (Author) , Wirsching, Leonard (Author) , Diehl, Moritz (Author) , Schlöder, Johannes P. (Author) , Bock, Hans Georg (Author) , Engell, Sebastian (Author)
Format: Article (Journal)
Language:English
Published: 13 July 2010
In: Computers & chemical engineering
Year: 2010, Volume: 34, Issue: 12, Pages: 1969-1983
ISSN:0098-1354
DOI:10.1016/j.compchemeng.2010.07.005
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.compchemeng.2010.07.005
Verlag, lizenzpflichtig, Volltext: https://www.sciencedirect.com/science/article/pii/S009813541000253X
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Author Notes:Achim Küpper, Leonard Wirsching, Moritz Diehl, Johannes P. Schlöder, Hans Georg Bock, Sebastian Engell
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Summary:In this paper, a concept to identify the adsorption isotherm of Simulated Moving Bed processes online during the operation is proposed. The influence of model parameters on the measurements is analyzed by a sensitivity analysis which enables to identify the set of parameters that can be estimated simultaneously. The parameters are estimated in real-time by a moving horizon state and parameter estimation scheme. Numerical simulations of validated models for separation problems with nonlinear isotherms of Langmuir type are presented. Furthermore, it is it shown that a structural plant/model mismatch in the void fraction can be compensated to a large extent by modifying the Henry coefficients of the adsorption isotherm such that the estimated model can be used in the context of online optimizing control.
Item Description:Gesehen am 08.03.2023
Physical Description:Online Resource
ISSN:0098-1354
DOI:10.1016/j.compchemeng.2010.07.005

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