Room-temperature ionic liquids; singe-drop experiments; sedimentation velocity;; mass transfer
Abstract :
[en] Experiments of single-drop sedimentation and mass transfer on a laboratory scale for the extraction of acetone from a water + acetone mixture by means of the ionic liquid 1-hexyl-3-methylimidazolium hexafluorophosphate (HMIMPF6) were performed at a temperature of 298.2 K and ambient pressure. Study of the system equilibriumconditions in a previous work (Saien et al., 2015) showed that HMIMPF6, as a green solvent for the extraction of acetone from aqueous solutions, has suitable capability. The single-drop experimentswith this systemshow that the mass transfer is not as slow as expected despite the relatively high viscosity of the system. The Henschke model is applied to the obtained data for the challenging system involving an ionic liquid by determining appropriate values for the corresponding material-specific model parameters. This model describes the experimental data with very good accuracy.
Research center :
Department of Chemical Engineering, PEPs - Products, Environment, and Processes
Disciplines :
Chemical engineering
Author, co-author :
Mohammadi Sarab Badieh, Marjan
Quaresima, Maria Chiara ; Université de Liège - ULiège > Department of Chemical Engineering > PEPs - Products, Environment, and Processes
Pfennig, Andreas ; Université de Liège - ULiège > Department of Chemical Engineering > PEPs - Products, Environment, and Processes
Saien, Javad
Language :
English
Title :
Performance study of ionic liquid in extraction based on single-drop experiments
Ren, Q., Yang, Q., Yan, Y., Xing, H., Bao, Z., Su, B., Yang, Y., Ionic Liquid-Mediated Liquid-Liquid Extraction (2011) Applications of Ionic Liquids in Science and Technology, pp. 345-364. , Handy S., (ed), Publishing in Tech, USA:. In, Ed
Brennecke, J.F., Maginn, E.J., Ionic Liquids: Innovative Fluids for Chemical Processing (2001) AIChE J, 47 (11), pp. 2384-2389
Ha, S.H., Mai, N.L., Koo, Y.-M., Butanol Recovery from Aqueous Solution into Ionic Liquids by Liquid–Liquid Extraction (2010) Process Biochem, 45 (12), pp. 1899-1903
Buchbender, F., Meindersma, F.W., Haan, A., Pfennig, A., Pfennig, A., Simulation of Aromatics Extraction with an Ionic Liquid in a Pilot-Plant Kuhni Extractor Based on Single-Drop Experiments (2012) Chem Eng Sci, 82, pp. 167-176
Passos, H., Freire, M.G., Coutinho, J.A.P., Ionic Liquid Solutions as Extractive Solvents for Value-Added Compounds from Biomass (2014) Green Chem, 16 (12), pp. 4786-4815
Blanchard, L.A., Brennecke, J.F., Recovery of Organic Products from Ionic Liquids Using Supercritical Carbon Dioxide (2001) Ind Eng Chem Res, 40 (1), pp. 287-292
Pereiro, A.B., Tojo, E., Rodriguez, A., Canosa, J., Tojo, J., HmimPF6 Ionic Liquid that Separates the Azeotropic Mixture Ethanol Plus Heptane (2006) Green Chem, 8 (3), pp. 307-310
Saien, J., Mohammadi Sarab Badieh, M., Norouzi, M., Salehzadeh, S., Ionic Liquid 1-Hexyl-3-Methylimidazolium Hexafluorophosphate, an Efficient Solvent for Extraction of Acetone from Aqueous Solutions (2015) J Chem Thermodyn, 91, pp. 404-413
Saien, J., Mohammadi Sarab Badieh, M., Norouzi, M., Experimental and Theoretical Assessing the Salts Effect on the Equilibrium of Water + Acetone + HMIMPF6 Ionic Liquid System (2016) Sep Purif Technol, 168, pp. 199-208
Steinmetz, T., (2007) Tropfenpopulationsbilanzgestutztes Auslegungsverfahren Zur Skalierung Einer Geruhrten Miniplant-Extraktionskolonne, , VDI-Verlag, Dusseldorf
Kumar, A., (1983) Droplet Behaviour in Liquid/Liquid Extraction, , Ph.D. thesis, University Zurich
Henschke, M., (2004) Auslegung Pulsierter Siebbodenextraktionskolonnen, Berichte Aus Der Verfahrenstechnik, , Shaker Verlag: Aachen
Bertakis, E., Groß, S., Grande, J., Fortmeier, O., Reusken, A., Pfennig, A., Validated Simulation of Droplet Sedimentation with Finite-Element and Level- Set Methods (2010) Chem Eng Sci, 65 (6), pp. 2037-2051
Kalem, M., Altunok, M., Pfennig, A., Sedimentation Behavior of Droplets for the Reactive Extraction of Zinc with D2EHPA (2010) AIChE J, 56 (1), pp. 160-167
Newman, A.B., The Drying of Porous Solids: Diffusion and Surface Emission Equations, Trans (1931) AIChE J, 27, pp. 203-220
Bird, R.B., Stewart, W.E., Lightfoot, E.N., (2007) Transport Phenomena, , John Wiley & Sons, New York
Reddy, K., Doraiswamy, L., Estimating Liquid Diffusivity (1967) Ind Eng Chem Fundam, 6 (1), pp. 77-79
Schliefer, S., (1996) Untersuchungen zum stoffaustauschverhalten von einzeltropfen unter einfluss der fluiddynamik, , Diploma thesis, Aachener Verfahrenstechnik, RWTH Aachen University, Germany
Schügerl, K., Hansel, R., Schlichting, E., Halwachs, W.R., Reactive Extraction (1986) Chem Ing Tech, 58 (4), pp. 308-317
Henschke, M., Waheed, A., Pfennig, A., Wall Effect on the Sedimentation of Sphere (2000) Chem Ing Tech, 72 (11), pp. 1376-1380
Altunok, M., Kalem, M., Pfennig, A., Investigation of Mass Transfer on Single Droplets for the Reactive Extraction of Zinc with D2EHPA (2012) AIChE J, 58 (5), pp. 1346-1355
Henschke, M., Pfennig, A., Mass-Transfer Enhancement in Single-Drop Extraction Experiments (1999) AIChE J, 45 (10), pp. 2079-2086