Home News About Us Contact Contributors Disclaimer Privacy Policy Help FAQ

Home
Search
Quick Search
Advanced
Fulltext
Browse
Collections
Persons
My eDoc
Session History
Login
Name:
Password:
Documentation
Help
Support Wiki
Direct access to
document ID:


          Display Documents



  history
ID: 124822.0, MPI für Dynamik komplexer technischer Systeme / Process Synthesis and Process Dynamics
Optimal operation of simulated moving bed chromatographic processes by means of simple feedback control
Authors:Schramm, H.; Grüner, S.; Kienle, A.
Language:English
Date of Publication (YYYY-MM-DD):2003
Title of Journal:Journal of Chromatography A
Volume:1006
Start Page:3
End Page:13
Review Status:not specified
Audience:Experts Only
Intended Educational Use:No
Abstract / Description:In this contribution, simple methods are presented for controlling a simulated moving bed chromatographic process with standard PI controllers. A first method represents a simple and model-free inferential controlscheme which was motivated from common distillation column control. The SMB unit is equipped with UV measurements. The UV signals in the four separation zones of the unit are fixed by four corresponding PI controllers calculating the ratio of liquid and solid flow in the respective separation zone. In order to be able to adjust the product purity a second, model-based control scheme is proposed. It makes use of the nonlinear wave propagation phenomena in the apparatus. The controlled chromatographic unit is automatically working with minimum solvent consumption and maximum feed throughput without any numerical optimization calculations. This control algorithm can therefore also be applied for fast optimization of SMB processes.
External Publication Status:published
Document Type:Article
Communicated by:Achim Kienle
Affiliations:MPI für Dynamik komplexer technischer Systeme/Process Synthesis and Process Dynamics
Identifiers:LOCALID:791 8/03
The scope and number of records on eDoc is subject to the collection policies defined by each institute - see "info" button in the collection browse view.