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Droplet Size Correlation Modeling In Agitated Immiscible Liquid Systems
[Full Text]
AUTHOR(S)
Hamit Topuz, W.L.Wilkinson
KEYWORDS
Mixer-settler; liquid-liquid dispersion; TBP; drop size; dispersed phase fraction; the Sauter mean.
ABSTRACT
This study aims to present experimental studies on the dispersion of immiscible liquids in agitated vessels for a range of liquids and geometries under both batch and continuous conditions. Preliminary experiments were first carried out in a small scale single –stage mixer-settler unit operating with the 20% TBP/OK, 0.05M nitric acid, uranyl nitrate system. This work was followed by measurements of drop size distribution in agitated liquid-liquid systems in 6 and 9 inches baffled and a 20 cm side square tank using six-flat bladed turbine type impellers. The drop size measurement technique employed fiber optic probes and photography. The liquid-liquid systems used for the measurements were methyl-iso-butyl ketone/water, cyclohexane/water and 20%TBP/OK/0.05 nitric acid. The volumetric fractions were 0.10, 0.15 and 0.20 Impeller speeds varied from 300 to 500 r.p.m. A correlation of the mean drop size for the cylindrical and square vessels under both batch and continuous conditions were established.
REFERENCES
[1]. K. Rietma, Segregation in Liquid-Liquid Dispersions and its Effect on Chemical Reaction, in Adv.Chem.eng.5,237(1964). A. Sendonaris, E. Erkip, and B. Aazhang, “User cooperation diversity–part I: system description,” IEEE Trans. Commun., vol. 51, no. 11, pp. 1927–1938, Nov. 2003.
[2]. J.O. Hinze, Fundamentals of the Hydrodynamic Mechanism of Splitting up in Dispersion Processes AIChE J.,1,299 (1955).F. A. Onat, A. Adinoyi, Y. Fan, H. Yanikomeroglu, and J. S. Thompson, “Optimum threshold for SNR-based selective digital relaying schemes in cooperative wireless networks,” in Proc. IEEE WCNC 2007, pp. 969-975, 2007.
[3]. T. Vermulen, G.M. Williams, G.E. Langlois, Interfacial Area in Liquid-Liquid and Gas –Liquid Agitation, Chem. Eng. Progr. 51, 85F,(1955).
[4]. W.A. Roger, V.G. Trice, and J.H. Rushton, Chem. Eng. Program, 52,515 (1956).
[5]. P.H. Calderbank, Physical Rate Processes in Industrial Fermentation. Part I: The Interfacial Area in Gas-Liquid contacting with Mechanical Agitation, Trans. Inst. Chem. Eng., 36,43 (1958).
[6]. R. Shinnar, and J.M.Church.Ind.Eng.Chem.52,233 (1960)
[7]. A.N. Kolmogorov, On the Disintegration of Drops in Turbulent Flow, (Dokl. Akad. Nauk. S.S.S.R., 1949, Vol.66 No.5 , 825-8), (IBID 30,301 (1961).
[8]. R.E. Treybal, and B.Weistein, Liquid-Liquid contacting in unbaffled agitated vessels, AIChem J.,19 304 (1973)
[9]. H.T. Chen, and S.Middleman, Drop Size Distribution in Agitated Liquid –Liquid Systems, AIchE J.,13 No.5 989 (1967)
[10]. C.A. Coulaloglou, and L.L. Tavlarides, Drop Distribution and Coalescing Frequencies of Liquid-liquid Dispersion in Flow vessels. AIChE J.,22,No.2 (1976)
[11]. J.Y. Park, and L.M. Blair, The Effect of Coalescence on Drop Size Distribution in an agitated L-L dispersion, Chem. Eng.Sci.,30 1057 (1975)
[12]. F.B.Sprow, Distribution of Drop Size Produced in Turbulent Liquid-Liquid Dispersions. Chem. Eng. Sci., 22 435 (1967) and AIChE 13,995,(1967).
[13]. V. Grilc, Ph.D Thesis, Univ. of Bradford (1976).
[14]. B.S. Buyatiotis, and J.D. Thornton, Liquid-Liquid Extraction Studies in Stirred Tanks .Part I, Droplet size and Holdup .Ins. Chem. Eng. Symp. Series (London), 26, 43 1967).
[15]. D.E. Mack, and E. Kroll, Chem. Eng. Prog., 44,3 (1948).
[16]. H..D. Schinler, and R.E. Treybal, Continuous Phase Mass Transfer Coefficient for Liquid Extraction in Agitated vessels. AICHE J., No.5 790 (1968).
[17]. S.L. Ross, and R.D. Curl, Paper 29b presented at the fourth joint Chem. Eng. Conference, VanCoover, Canada (Sept -12.1973).
[18]. J.H. Rushton, E.W. Costich, and H.J. Everett, Power characteristics of Mixing Impellers and Chem. Eng. Progr., 46,395 (1950).
[19]. N.L. Eckert and L.S. Gormely, Phase Separation in an experimental Mixer-settler, Ins. Chem. Eng. Res.des,Vol.67,March (1989).
[20]. J. Majewski, Measurement Technique s Concerning Droplet Size Distribution of electro sprayed water, Przeglad Elektrotechniczny, Nr 36 (2013)
[21]. Bozzano, M. Dente M., Mechanism of drop Coalescence at the Interface of two immiscible liquids, 20th European Symp. on Computer Aided process Engineering,(2001)
[22]. G.D. Riquelme, F. Femenias, O. Bezama, gerardo.riquelme@usm.cl
[23]. G. Carlucci, and M. Kraume, Drop Size Distribution in Liquid/Liquid Systems Influenced on the Dispersed phase. Master final project ,Matr. No.331007 Techische. Universitat Berlin- Institut fur Prozess-Und verfahrenstechnik.
[24]. B.A. King,and T.W. winward, and D.L. Bjorneberg, Am. Soc. Agri. and Bio. Engrs., Vol.30 (3), (2014).
[25]. K.K. Singh, S. Madhusudan Mahajani, and S. Ghosh. Hydrometallurgy, Feb. 2008
[26]. H. Topuz, and W.L. Wilkinson, Ph.D. Thesis, University of Bradford, (1978)
[27]. J.L. Lee, and G. Lewis, Inst. Chem. Eng. Symp. on Liquid Extraction, Newcastle (1967)
[28]. Y. Mylnek, and W. Resnick, AIChE J,18,1,122(1972)
[29]. E. Barnea ,and J. Mizrahi, J. Trans. Inst. Chem. Eng. Vol 53, Part I,II,III,IV, (1975)
[30]. David T. Wu, John A. Boxall, Carolyn A. Koh, E. Dendy Sloan, and Amedeu K. Sum, Center for Hydrate Research, Department of Chemical Engineering, and Department of Chemistry, Colorado School of Mines, Golden, Colarado 80401, Ind. Eng. Chem. Res., 2010,49 (3), pp 1412-1418
[31]. Stephanie Nachtigall, Daniel Zedel, Mattias Kraume, Analysis of drop deformation dynamics in turbulent flow, Chinese Journal of Chemical Engineering,2015CrossRef
[32]. Michal Vonka, Miroslav Soos, Characterization of liquid-liquid dispersions with variable viscosity by coupled computational fluid dynamics and population balances, AIChE Journal, 2015, 61,8, 2403 Wiley Online Library
[33]. Lu Qi, Xianghai Meng, Rui Zhang, Haiyan Liu, Chunming Xu, Zichang Liu Peter A..A. Klusener, Droplet size distribution and droplet size correlation of chloroaluminate ionic liquid-heptane dispersion in a stirred vessel, Chemical Engineering Journal, 2015, 268, 116 CrosRef.
[34]. M., Khajenoori, A. Haghighi-Asl, J. Safdari, H.M. Mallah, Prediction of drop size distribution in a horizontal pulsed plate extraction column, Chemical Engineering and Processing: Process Intensification, 2015, 92, 25 CrossRef.
[35]. Andreas Daub, Marina Bohm ,Stefanie Delueg, Markus Mühlmann, Gerhard Scheider, Jochen Büchs, Charterization of hydromechanical stress in aerated stirred tanks up to 40 m3 scale by measurement of maximum stable drop size, Journal of Biological Engineering,2014,8,1,17CrossRef
[36]. Mohd Izzudin Izzat Zainal Abidin, Abdul Aziz Abdul Raman, Mohamad Iskandr Mohamad Nor, Department of Chemical Engineering, Faculty of Engineering, University of Malaya, 50603, Kuala Lumpur, Malaysia, Ind. Eng. Chem. Res., 2013, 52(46), pp 16085-16094
[37]. Mohd Izzudin Izzat Zainal Abidin, Abdul Aziz Abdul Raman, Mohamad Iskandr Mohamad Nor, Experimental Investigation in Liquid-Liquid Dispersion System: Effects of Dispersed Phase Viscosity and Impeller Speed, Industrial &Engineering Chemistry Research, 2014,53,15,6554CrossRef
[38]. Young-Sei Lee, Characteristic of Mass Transfer Volumetric Coefficient and Sauter. Mean Diameter in a Liquid –liquid agitated Vessel, Korean Chemical Engineering Research,2012,50,5,913CrossRef
[39]. M. Gholam Samani, A. Haghighi Asl, J. Safdari, M. Torab-Mostaedi, Drop size distribution and mean drop size in a pulsed packed extraction column, Chemical Engineering Research and Design,2012,90,12,2148CrossRef
[40]. Paul E. Rueger, Richard V. Calabrese, Distribution of water into oil in a rotor-stator mixer, Part I: drop breakup in dilute systems. Chemical Engineering Research and Design,2013,91,11,2122CrossRef
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