Economically optimal control of batch diafiltration processes

Author

Jelemensky, Martin ; Paulen, Radoslav ; Fikar, Miroslav ; Kovacs, Zsolt

Author_Institution

Fac. of Chem. & Food Technol., Slovak Univ. of Technol. in Bratislava, Bratislava, Slovakia

fYear

2013

fDate

28-30 Aug. 2013

Firstpage

734

Lastpage

739

Abstract

An economically optimal operation of batch diafiltration processes is studied. The processes are characterized by complex membrane transport models that adequately describe non-ideal membrane characteristics of real-life systems. We consider the optimization criterion which comprises two conflicting objectives, a minimization of processing time and a minimization of solvent consumption. The problem is treated in the multi-objective form in order to investigate the impact of operational cost factors on optimal operation policy. Thanks to the application of Pontryagin´s minimum principle (PMP), we find the economically optimal operation of studied process in the analytical form. Developed methodology is applied to two case studies taken from literature.

Keywords

batch processing (industrial); filtration; membranes; minimisation; minimum principle; PMP; Pontryagin minimum principle; batch diafiltration processes; complex membrane transport models; diafiltration processes; economically optimal control; nonideal membrane characteristics; optimal operation policy; optimization criterion; processing time minimization; solvent consumption minimization; Biomembranes; Ethanol; Feeds; Optimal control; Optimization; Process control; Switches;

fLanguage

English

Publisher

ieee

Conference_Titel

Control Applications (CCA), 2013 IEEE International Conference on

Conference_Location

Hyderabad

ISSN

1085-1992

Type

conf

DOI

10.1109/CCA.2013.6662837

Filename

6662837