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Conference Paper

New Control Strategies for Moving Bed Chromatographic Processes

MPS-Authors
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Schramm,  H.
Physical and Chemical Foundations of Process Engineering, Max Planck Institute for Dynamics of Complex Technical Systems, Max Planck Society;

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Grüner,  S.
Process Synthesis and Process Dynamics, Max Planck Institute for Dynamics of Complex Technical Systems, Max Planck Society;

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Kienle,  A.
Process Synthesis and Process Dynamics, Max Planck Institute for Dynamics of Complex Technical Systems, Max Planck Society;
Otto-von-Guericke-Universität Magdeburg, External Organizations;

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Citation

Schramm, H., Grüner, S., & Kienle, A. (2001). New Control Strategies for Moving Bed Chromatographic Processes. In ECCE - 3rd European Congress of Chemical Engineering (CD, pp. Topic 15 ).


Cite as: http://hdl.handle.net/11858/00-001M-0000-0013-A1B1-D
Abstract
Two different control strategies for Moving Bed chromatographic processes are developed and applied to True as well as Simulated Moving Bed processes. The first method represents an inferential control scheme with simple PI controllers. No mathematical model is required. Good control performance is obtained for processes with constant feed compositions and fluctuating flow rates. For processes with fluctuating feed composition and flow rates, a second, model based control scheme is proposed. It is based on nonlinear wave theoryand guarantees minimal solvent consumption and maximal feed throughput for any desired product purity without long winded optimization calculations.