Single Bubble Breakage in Oil Under Stirring Conditions

Basim Obaid Hasan

doi:10.29194/NJES.25010006

Authors

Basim Obaid Hasan Al-Nahrain University

DOI:

https://doi.org/10.29194/NJES.25010006

Keywords:

Bubble Breakage, Stirred Tank, Stirring Speed, Breakage Rate, Oil

Abstract

An experimental study on single bubble breakage in the stirred tank in oil as a continuous phase was carried out for a range of stirring speeds (220 to 430 rpm). The results are compared with bubble breakage in water that was conducted by Hasan et al. (2021) to investigate the effect of physical properties of continuous phase on the breakage rate. The breakage events in the impeller were captured and analyzed using a high speed camera. It was found that the breakage rate represented by breakage probability and a number of produced daughter bubbles (fragments) are directly proportional with the stirring speed. The breakage probability and number of produced daughter bubbles in oil was noticeably lower than that in water indicating the role the continuous phase viscosity plays in reducing the breakage rate.

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References

Andersson, R., B. Andersson, 2006a. On the breakup of fluid particles in turbulent flows, AIChE J., 52 (6) 2020–2030.

Andersson, R., B. Andersson, 2006b. Modeling the breakup of fluid particles in turbulent flows, AIChE J., 52 (6) 2031–2038.

Bak, A., W. Podgórska, 2013. Drop breakage and coalescence in the toluene/water dispersions with dissolved surface active polymers PVA 88%and 98%, Chem. Eng. Res. Des. 91, 2142–2155.

Calabrese, R., V., T. P. K. Chang, P.T. Dang, 1986. Drop breakup in turbulent stirred-tank contactors, part I: Effect of dispersed-phase viscosity, AIChE 32 (4) 657–666.

Chen, J., J. Ding, P. Weng, Z. Lu, X. Li, 2019. A theoretical model describing bubble deformability and its effect on binary breakup in turbulent dispersions, European Journal of Mechanics / B Fluids 75, 352–360.

Chu, P. A., James Fincha, Ghislain Bournival, Seher Ata, Christopher Hamlett, Robert J. Pughc, 2019. A review of bubble break-up, Advances in Colloid and Interface Science 270, 108–122.

Clift, R., Grace, Weber, J.R., Bubbles, M.E., 1978. Drops, and Particles, first ed. Academic Press, New York.

Cristini, V., J. Lawzdziewicz, M. Loewenberg, L. Collins, 2003. Breakup in stochastic stokes flows: Sub-Kolmogorov drops in isotropic turbulence, J. Fluid Mech. 492, 231–250.

Coulaloglou, C.A., Tavlarides, L.L., 1977. Description of interaction processes in agitated liquid–liquid dispersions. Chem. Eng. Sci. 32 (11) 1289–1297.

Escudie, R., Line, A., 2003. Experimental analysis of hydrodynamics in a radially agitated tank, AIChE J. 49 (3), 585–603.

Galinat, S., Torres, L.G., Masbernat, O., 2007. Breakup of a drop in a liquid–liquid pipe flow through an orifice. AIChE J. 53, 56–68.

Hasan, B. O., 2017a. Experimental study on the bubble breakage in a stirred tank. Part 1. Mechanism and effect of operating parameters, International Journal of Multiphase Flow, 97, 94–108.

Hasan, B. O., 2017b. Breakage of drops and bubbles in a stirred tank: A review of experimental studies, Chinese Journal of Chemical Engineering, 25, 698–711.

Hasan, B. O., 2018. Experimental study on the bubble breakage in a stirred tank Part 2: Local dependence of breakage events, Experimental Thermal and Fluid Science, 96, 48-62

Hinze, J. O., 1955. Fundamentals of the hydrodynamic mechanism of splitting in dispersion processes. AIChE. 1, 289–295.

Hollman J.P. Heat Transfer. 9th ed., New York, McGraw?Hill, 2010.

Konno, M., A. Aoki, S. Saito, 1983. Scale effect on breakup process in liquid–liquid agitated tanks, J. Chem. Eng. Jpn 16 (4), 312–319.

Krakau, F., M. Kraume, 2019. Three?Dimensional Observation of Single Air Bubble Breakup in a Stirred Tank, Chemical Engineering Technology, 42, No. 7, 1357–1370.

Kumar, S., R. Kumar, K. Gandhi, 1991. Alternative mechanisms of drop breakage in stirred vessels, Chem. Eng. Sci. 46 (10), 2483–2489.

Kumar, S., V. Ganvir, C. Satyanand, R. Kumars, K.S. Gandhi, 1998. Alternative mechanisms of drop breakup in stirred vessels, Chem. Eng. Sci. 53 (18), 3269–3280.

Lemenand, T., P. Dupontb, D. Valle, H. Peerhossaini, 2013. Comparative efficiency of shear, elongation and turbulent droplet breakup mechanisms: Review and application, Chem. Eng. Res. Des. 91, 2587–2600.

Liao, Y., D. Lucas, 2009. A literature review of theoretical models for drop and bubble breakup in turbulent dispersions, Chem. Eng. Sci. 65 (10) (2009) 2851–2864.

Maass, S. 2011. Experimental Analysis, Modeling and Simulation of drop Breakage in Agitated Turbulent Liquid/Liquid Dispersions, Ph.D. thesis, Technical University of Berlin, Germany.

Martin, M., F. Montes, M. Galan, 2008. Influence of impeller type on the bubble breakup process in stirred tanks, Ind. Eng. Chem. Res. 47, 6251–6263.

Moffat R. J., 1988. Describing the uncertainties in experimental results. Exp Therm Fluid Sci.; 1:3?17.

Nachtigall, S., Z. Daniel, M. Kraume, 2016. Analysis of drop deformation dynamics in turbulent flow, Chin. J. Chem. Eng. 24 (2), 264–277.

Nambiar, D., R. Kumar, K.S. Gandhi, 1990. Breakage and coalescence of drops in turbulent stirred dispersions, Sadhana 15, 73–103.

Niño, L., R. Gelves, H. Ali, J. Solsvik c, H. Jakobsen, 2020. Applicability of a modified breakage and coalescence model based on the complete turbulence spectrum concept for CFD simulation of gas-liquid mass transfer in a stirred tank reactor, Chemical Engineering Science, 211, 115272.

Nishikawa, M., F. Mori, F. Fujieda, 1987. Average drop size in a liquid–liquid phase mixing vessel, J. Chem. Eng. Jpn 20 (1), 82–88.

Paul, E.L., V. Atiemo-Obeng, S.M. Kresta, Handbook of Industrial Mixing, Science and Practice, second ed., John Wiley and Sons, New Jersey, 2004.

Roudsari, R., G. Turcotte, R. Dhib, F. Ein-Mozaffari, 2012. CFD modeling of the mixing of water in oil emulsions, Comput. Chem. Eng. 45, 124–136.

Ruiz, M., P. Lermanda, R. Padilla, 2002. Drop size distribution in a batch mixer under breakage conditions, Hydrometallurgy 63, 65–74.

Samaras, K. M. Kostoglou, T.D. Karapantsios, P. Mavros, 2014. Effect of adding glycerol and Tween 80 on gas holdup and bubble size distribution in an aerated stirred tank, Colloids Surf. A Physicochem. Eng. Asp. 441, 815–824.

Sanjuan-Galindo, R., E. Soto, R. Zenit, G. Ascanio, 2015, Viscous filament fragmentation in a turbulent flow inside a stirred tank, Chem. Eng. Commun., 202 (9)1251–1260.

Shi, W., Jie Yang, Guang Li, X. Yang,Yuan Zong, Xinyue Cai, 2018. Modelling of breakage rate and bubble size distribution in bubble columns accounting for bubble shape variations, Chemical Engineering Science 187, 391–405.

Shimizu, K., K. Minekawa, K. T., T. Hirose, Y. Kawase, 1999. Drop breakage in stirred tanks with Newtonian and non-Newtonian fluid systems, Chem. Eng. J. 72, 117–124.

Solsvik, J., S. Tangen, H. Jakobsen, On the constitutive equations for fluid particles breakage, Rev. Chem. Eng. 29 (2013) 241–356.

Solsvik, J., H. Jakobsen, 2015a. Single drop break up experiments in stirred liquid–liquid tank, Chem. Eng. Sci. 131, 219–234.

Solsvik, J., H. Jakobsen., 2015b. Single air bubble breakup experiments in stirred water tank. Int. J. Chem. React. Eng. 13, 477–491.

Solsvik, J., S. Maass, H. Jakobsen, 2016. Definition of the single drop breakup event, Ind. Eng. Chem. Res. 55, 2872–2882.

Stamatoudis, M., L. L. Taviarides, 1985. Effect of continuous-phase viscosity on the drop sizes of liquid–liquid dispersions in agitated vessels, Ind. Eng. Chem. Process. Des. Dev. 24, 1175–1181.

Wilkinson, P.M., Schayk, A.V., Spronken, J. P., Dierendonck, L.V., 1993. The influence of gas density and liquid properties on bubble breakup, Chem. Eng. Sci. 48 (7), 1213–1226.

Zhou, H., J. Yang, S. Jing, W. Lan, Q. Zheng, S. Li, Nov 2019. Influence of dispersed phase viscosity on droplet breakup in a continuous pump-mixer, Industrial & Engineering Chemistry Research, 58 (51) 23458–23467.