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Investigation of Effective Parameters on Phase Inversion Hold-up in Continuous Mixer-settler | ||
| Journal of Chemical and Petroleum Engineering | ||
| مقاله 5، دوره 44، شماره 1 - شماره پیاپی 422333، 2011، صفحه 43-52 اصل مقاله (400.67 K) | ||
| شناسه دیجیتال (DOI): 10.22059/jchpe.2011.22347 | ||
| نویسندگان | ||
| Hozhabr Sohbat zadeh1؛ Hosein Abolghasemi1؛ Mohammad Ghannadi maragheh2؛ Amir Khacpai1 | ||
| 1مهندسی شیمی | ||
| 2سازمان انرژی اتمی | ||
| چکیده | ||
| In this paper, we studied effect of different parameters including density, viscosity, interfacial tension and solute transfer concentration on phase inversion hold-up. The results showed that change in phase density ratio had no effect on phase inversion hold-up. It also disclosed that the phase viscosity ratio was the most effective parameter affecting phase inversion hold-up and each phase had tendency to increase dispersion by rising viscosity of that phase. When the proportion of dispersed phase viscosity to continuous phase viscosity was more than 1, phase inversion hold-up decreased as the interfacial tension increased or Vice versa. Also, increase in the solute transfer concentration by affecting phases physical properties and electrostatic interaction between drops and continuous phase resulted in increasing the tendency toward both types of inversion and . | ||
| کلیدواژه‌ها | ||
| وارونگی فاز؛ پراکندگی مایع؛ مایع جزء منتقل شونده؛ میکسر؛ ستلر | ||
| مراجع | ||
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1- Kumar, S. (1995). “On phase inversion characteristics of stirred dispersions.” Chem. Eng. Sci., Vol. 51, PP. 831-834. 2- Hu, B., Liu, L., Matar, O. K., Angeli, P., Hewitt, G. F. and Perez de Ortiz, E. S. (2006). “Investigation of phase inversion of liquid-liquid dispersions in agitated vessels.” Tsinghua Sci.and.Tech., Vol. 11, PP. 202- 206. 3- Yeo, L. Y., Matar, O. K., Perez de Ortiz, E. S. and Hewitt, G. F. (2000). “Phase inversion and associated phenomena.” Multiphase Sci. Tech., Vol. 12, PP. 51-116. 4- Norato, M. A., Tsouric, C. and Tavlarides, L . L. (1998). “Phase inversion structure in liquid- liquid dispersions.” Can. J. Chem. Eng., Vol. 76, PP. 486-494. 5- Yeo, L. Y., Matar, O. K., Perez de Ortiz, E. S. and Hewitt, G. F. (2002). “Simulation studies of phase inversion in agitated vessels using a monte Carlo technique.” Journal of Colloid and Interface Sci., Vol. 248, PP. 443-454. 6- Hu, B., Angeli, P., Matar, O. K. and Hewitt, G. F. (2005). “Prediction of phase inversion in agitated vessels using a two-region model.” Chem. Eng. Sci., Vol. 60, PP. 3487-3495. 7- Yeo, L. Y., Matar, O. K., Perez de Oritz, E. S. and Hewitt, G. F. (2002). “A simple predictive tool for modeling phase inversion in liquid- liquid dispersions.” Chem. Eng. Sci., Vol. 57, PP. 1069-1072. 8- Hadjiev, D. and Paulo, J. B. A. (2005). “Extraction separation in mixer–settlers based on phase inversion. ” Separation and Purification Technology, Vol. 43, PP. 257-262. 9- Reeve, R. N. and Godfrey, J. C. (2002). “Phase inversion during liquid- liquid mixing in continuous flow, pump mix, agitated tanks” Trans IChemE, Vol. 80, PP. 864-871. 10-Bouchama, F., Van Aken, G. A., Autin, A. J. E. and Koper, G. J. M. (2003). “On the mechanism of catastrophic phase inversion in emulsions.” Journal of Colloid and Interface Sci., Vol. 231, PP. 11-17. 11-Tsouris, C. and Dong, J. (2000). "Effects of electric fields on phase inversion of liquid-liquid dispersions." Chem. Eng. Sci., Vol. 55, PP. 3571-3574. | ||
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