TY - JOUR
T1 - Cleaning of microfiltration membranes from industrial contaminants using "greener" alternatives in a continuous mode
AU - Michałek, Krzysztof
AU - Krzysztoforski, Jan
AU - Henczka, Marek
AU - Da Ponte, Manuel Nunes
AU - Bogel-Lukasik, Ewa
N1 - Sem PDF.
Fundacao para a Ciencia e Tecnologia (UID/QUI/50006/2013; IF/01643/2013);
COST Actions (CM 1304);
FPS COST Action (FP1306)
PY - 2015
Y1 - 2015
N2 - Abstract This work presents a sufficient cleaning of microfiltration membranes from industrial contaminants (oils) using supercritical fluids as alternative to industrial use of organic solvents used near their high boiling points. Supercritical carbon dioxide either as pure or with an insignificant addition of "greener" solvents such as ethyl alcohol or isopropyl alcohol were applied in this study. The cleaning process was investigated in a high pressure system with a continuous solvent flow and solvent recirculation. The effect of system pressure, temperature, solvent flow rate, solvent composition, cleaning time and type of the contaminant on cleaning efficiency was analysed. Powerful, "greener" solvents combined with CO2 gave satisfactory results in removing oils from membranes allowing to increase the process rate and cleaning efficiency, as well as reduce energy consumption of the process.
AB - Abstract This work presents a sufficient cleaning of microfiltration membranes from industrial contaminants (oils) using supercritical fluids as alternative to industrial use of organic solvents used near their high boiling points. Supercritical carbon dioxide either as pure or with an insignificant addition of "greener" solvents such as ethyl alcohol or isopropyl alcohol were applied in this study. The cleaning process was investigated in a high pressure system with a continuous solvent flow and solvent recirculation. The effect of system pressure, temperature, solvent flow rate, solvent composition, cleaning time and type of the contaminant on cleaning efficiency was analysed. Powerful, "greener" solvents combined with CO2 gave satisfactory results in removing oils from membranes allowing to increase the process rate and cleaning efficiency, as well as reduce energy consumption of the process.
KW - "Greener" solvents
KW - Cleaning
KW - Extraction
KW - Separation
KW - Supercritical carbon dioxide
UR - http://www.scopus.com/inward/record.url?scp=84928948070&partnerID=8YFLogxK
U2 - 10.1016/j.supflu.2015.04.011
DO - 10.1016/j.supflu.2015.04.011
M3 - Article
AN - SCOPUS:84928948070
VL - 102
SP - 115
EP - 122
JO - Journal of Supercritical Fluids
JF - Journal of Supercritical Fluids
SN - 0896-8446
M1 - 3300
ER -
