Transport phenomena in cleaning porous media using supercritical fluids
Jan Krzysztoforski , Marek Henczka , Patrick Jenny , Karim Khayrat
AbstractTransport phenomena in the process of cleaning porous media using supercritical fluids were studied both experimentally and numerically. Porous membrane cleaning using supercritical carbon dioxide was used as model process. The process was investigated in a lab-scale experimental system and by analysis of physical and transport properties of the supercritical solvent. A simplified 1D macro scale model of the cleaning process was proposed. Moreover, a pore scale model for investigation of capillary effects at pore scale was developed. The obtained results suggest that the process rate is controlled by diffusive mass transfer, and that capillary effects exist in the process at pore scale, although they are not noticeable at macro scale. The presented work is a novel, holistic approach of investigation of processes involving supercritical fluids and porous media.
|Publication size in sheets||0.5|
The 22nd Polish Conference of Chemical and Process Engineering: Proceedings, 2016, Łódź, Faculty of Process and Environmental Engineering, ISBN 978-83-61997-75-7, 1584 p.
Proceedings OKIChiP 2016.pdf / No licence information (file archived - login or check accessibility on faculty)
|Keywords in English||mass transfer intensification, porous material, supercritical fluid, CFD|
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