Mass transfer intensification in the process of membrane cleaning using supercritical fluids

Jan Krzysztoforski , Patrick Jenny , Marek Henczka


Mechanisms of mass transfer intensification in the process of membrane cleaning using supercritical fluids were investigated. Transport properties, hydrodynamics of the solvent flow, mutual solubility of the solvent and the oil contaminant, and capillary effects occurring inside the porous membrane as factors affecting the overall process performance were studied. The analysis was performed using empirical correlations for the transport property coefficients and a model of the process implemented to CFD code developed using the OpenFOAM environment. Supercritical carbon dioxide exhibits favourable transport properties, which are highly tunable with process parameters and contribute to low mass transfer resistance. The investigated process is controlled by diffusive mass transfer inside the membrane pores, so increasing solvent flow rate has limited impact on the overall process rate. Mutual solubility of the oil and solvent phase leads to the effect of swelling of the oil phase, which promotes faster completion of cleaning. Capillary effects inside the pores may be another factor of process acceleration which requires further investigation.
Author Jan Krzysztoforski (FCPE / DCRED)
Jan Krzysztoforski,,
- Department of Chemical Reactor Engineering and Dynamics
, Patrick Jenny - [Swiss Federal Institute of Technology in Zurich (ETH Zürich)]
Patrick Jenny,,
- Eidgenössische Technische Hochschule Zürich
, Marek Henczka (FCPE / DCRED)
Marek Henczka,,
- Department of Chemical Reactor Engineering and Dynamics
Journal seriesTheoretical Foundations of Chemical Engineering, ISSN 0040-5795
Issue year2016
Publication size in sheets0.5
Conference15th European Conference on Mixing, 28-06-2015 - 03-07-2015, Saint-Petersburg, Rosja
Keywords in Englishprocess intensification, porous media, extraction, supercritical fluid, membrane, OpenFOAM
ASJC Classification1500 General Chemical Engineering; 1600 General Chemistry
Languageen angielski
Krzysztoforski J. (i in.) - Mass transfer intensification...pdf 563.45 KB
Score (nominal)15
Score sourcejournalList
ScoreMinisterial score = 15.0, 11-05-2020, ArticleFromJournalAndMatConfByIndicator
Ministerial score (2013-2016) = 15.0, 11-05-2020, ArticleFromJournalAndMatConfByIndicator
Publication indicators WoS Citations = 2; Scopus Citations = 1; GS Citations = 2.0; Scopus SNIP (Source Normalised Impact per Paper): 2016 = 0.872; WoS Impact Factor: 2016 = 0.494 (2) - 2016=0.554 (5)
Citation count*2 (2020-09-07)
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* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
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