Design of a nonlinear distributed parameter observer for a pressure swing adsorption plant

As an integral part of an advanced process monitoring and control scheme, the reconstruction of the spatial concentration, temperature, and pressure profiles of an oxygen production plant is studied by the design of a nonlinear observer with distributed parameters. The considered pressure swing adso...

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Bibliographic Details
Published in:Journal of process control Vol. 12; no. 4; pp. 533 - 543
Main Authors: Bitzer, M., Zeitz, M.
Format: Journal Article
Language:English
Published: Elsevier Ltd 01.01.2002
Subjects:
Adsorption process
Distributed parameter systems
Late lumping observer design
Process monitoring and control
Sensor location
Wave propagation phenomena
Sensor location
Process monitoring and control
Wave propagation phenomena
Adsorption process
Distributed parameter systems
Late lumping observer design
ISSN:0959-1524, 1873-2771
Online Access:Get full text
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Summary:As an integral part of an advanced process monitoring and control scheme, the reconstruction of the spatial concentration, temperature, and pressure profiles of an oxygen production plant is studied by the design of a nonlinear observer with distributed parameters. The considered pressure swing adsorption process consists of two adsorbers and each adsorber of two layers. The design of the nonlinear observer with distributed parameters is illustrated for a single adsorption layer, which is described by six quasilinear partial differential equations and related boundary conditions. Thereby, a late lumping approach is used in order to design the injected correction functions in the observer equations and to introduce tuning parameters with a physical meaning. The observer is extended to the entire adsorption process and its simulation shows an excellent convergence behavior.
ISSN:0959-1524
1873-2771
DOI:10.1016/S0959-1524(01)00019-1