Optimal control of separation processes

2009 ◽  
pp. 271-320
Author(s):  
Stanisław Sieniutycz ◽  
Jacek Jeżowski
Keyword(s):  
Optimal Control ◽  
Separation Processes

scholarly journals Methods and Tools for Robust Optimal Control of Batch Chromatographic Separation Processes

Processes ◽  
2015 ◽  
Vol 3 (3) ◽  
pp. 568-606 ◽  
Author(s):  
Anders Holmqvist ◽  
Christian Andersson ◽  
Fredrik Magnusson ◽  
Johan Åkesson
Keyword(s):  
Optimal Control ◽  
Chromatographic Separation ◽  
Separation Processes ◽  
Robust Optimal Control

Minimal Work for Separation Processes of Binary Mixtures

2003 ◽  
Vol 10 (04) ◽  
pp. 335-349 ◽  
Author(s):  
S. A. Amelkin ◽  
A. M. Tsirlin ◽  
J. M. Burzler ◽  
S. Schubert ◽  
K. H. Hoffmann
Keyword(s):  
Mass Transfer ◽  
Optimal Control ◽  
Theoretical Model ◽  
Binary Mixtures ◽  
Membrane Separation ◽  
Open Systems ◽  
Separation Processes ◽  
Ideal Gases ◽  
Mass Transfer Kinetics ◽  
Minimal Work

The work expenditures for both perfect and imperfect separation processes are well known for the reversible case; yet such a description is often far from reality. Real processes operate at finite times and non-zero rates leading to an additional, irreversible energy expenditure. This paper employs an idealized van t'Hoff chamber as a theoretical model to derive lower bounds for the irreversible work in real separation processes such as membrane separation. Methods of optimal control for open systems and nonlinear programming of averaged problems are used to calculate the optimal mass transfer kinetics for the finite-time separation of binary mixtures of ideal gases.

A SEM/TEM examination of a ceramic membrane

1986 ◽  
Vol 44 ◽  
pp. 682-683
Author(s):  
C.E. Voegele-Kliewer ◽  
A.D. McMaster ◽  
G.W. Dirks
Keyword(s):  
Electron Microscopy ◽  
Gas Separation ◽  
Ceramic Membrane ◽  
Hydrogen Iodide ◽  
Separation Processes ◽  
Corning Glass ◽  
Gas Transport Properties ◽  
Porous Microstructure ◽  
Microscopy Techniques ◽  
The Relationship

Materials other than polymers, e.g. ceramic silicates, are currently being investigated for gas separation processes. The permeation characteristics of one such material, Vycor (Corning Glass #1370), have been reported for the separation of hydrogen from hydrogen iodide. This paper will describe the electron microscopy techniques applied to reveal the porous microstructure of a Vycor membrane. The application of these techniques has led to an increased understanding in the relationship between the substructure and the gas transport properties of this material.

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