The effect of interfacial tension on secondary drop formation in electro-coalescence of water droplets in oil

Chemical Engineering Science

Volumn 66, Issue 21, 2011, Pages 5330-5337

  Mousavichoubeh, Mirhamed ^a,b   Shariaty Niassar, Mojtaba ^b   Ghadiri, Mojtaba ^a  

^a UNIVERSITY OF LEEDS   (United Kingdom)

^b UNIVERSITY OF TEHRAN   (Iran)

Author keywords

Electric field; Electro coalescence; Interfacial tension; Oil water interface; Secondary droplets formation; Surfactants

Indexed keywords

COMPETING PROCESS; CONTINUOUS PHASE; DIMENSIONLESS GROUPS; DROPLET DEFORMATION; ELECTRIC FIELD STRENGTH; ELECTRICAL STRESS; ELECTRO-COALESCENCE; INTERFACIAL TENSIONS; NONIONIC; OIL WATER INTERFACES; PUMPING OF WATER; SECONDARY DROPLETS; VISCOUS FLUIDS; WATER DROPLETS; WEBER NUMBERS;

ANIONIC SURFACTANTS; CRUDE OIL; DROP BREAKUP; ELECTRIC FIELDS; PETROLEUM INDUSTRY; PUMPS;

COALESCENCE;

EID: 80051902460     PISSN: 00092509     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.ces.2011.07.019     Document Type: Article

References (44)

1. Atten P., Lundgaard L., Berg G. A simplified model of electrocoalescence of two close water droplets in oil. Journal of Electrostatics 2006, 64:550-554.
2. Aryafar H., Kavehpour H.P. Drop coalescence through planar surfaces. Physics of Fluids 2006, 18:72105-72106.
3. Aryafar H., Kavehpour H.P. Electrocoalescence: effects of DC electric fields on coalescence of drops at planar interfaces. Langmuir 2009, 25:12460-12465.
4. Boysen, J.E., Harju, J.A., Shaw, B., Fosdick, M., Grisanti, A., Sorensen, J.A., 1999. The current status of commercial deployment of the freeze thaw evaporation treatment of produced water. In: Proceedings of SPE/EPA Exploration and Production Environmental Conference. Copyright 1999, Society of Petroleum Engineers, Inc., Austin, Texas.
5. Blanchette F., Bigioni T.P. Partial coalescence of drops at liquid interfaces. Nature Physics 2006, 2:254-257.
6. Baret J.-C., Kleinschmidt F., El Harrak A., Griffiths A.D. Kinetic aspects of emulsion stabilization by surfactants: amicrofluidic analysis. Langmuir 2009, 25:6088-6093.
7. Chiesa M., Ingebrigtsen S., Melheim J.A., Hemmingsen P.V., Hansen E.B., Hestad Ø. Investigation of the role of viscosity on electrocoalescence of water droplets in oil. Separation and Purification Technology 2006, 50:267-277.
8. Cumming I.W., Holdich R.G., Smith I.D. The rejection of oil using an asymmetric metal microfilter to separate an oil in water dispersion. Water Research 1999, 33:3587-3594.
9. Chen C.T., Maa J.R., Yang Y.M., Chang C.H. Effects of electrolytes and polarity of organic liquids on the coalescence of droplets at aqueous-organic interfaces. Surface Science 1998, 406:167-177.
10. Charles G.E., Mason S.G. The coalescence of liquid drops with flat liquid/liquid interfaces. Journal of Colloid Science 1960, 15:236-267.
11. Charles G.E., Mason S.G. The mechanism of partial coalescence of liquid drops at liquid/liquid interfaces. Journal of Colloid Science 1960, 15:105-122.
12. Eow J.S., Ghadiri M. Drop-drop coalescence in an electric field: the effects of applied electric field and electrode geometry. Colloids and Surfaces A: Physicochemical and Engineering Aspects 2003, 219:253-279.
13. Eow J.S., Ghadiri M., Sharif A.O. Electrostatic and hydrodynamic separation of aqueous drops in a flowing viscous oil. Chemical Engineering and Processing 2002, 41:649-657.
14. Eow J.S., Ghadiri M. Electrostatic enhancement of coalescence of water droplets in oil: a review of the technology. Chemical Engineering Journal 2002, 85:357-368.
15. Eow J.S., Ghadiri M. Electrocoalescence-separators for the separation of aqueous drops from a flowing dielectric viscous liquid. Separation and Purification Technology 2002, 29:63-77.
16. Eow J.S., Ghadiri M., Sharif A.O., Williams T.J. Electrostatic enhancement of coalescence of water droplets in oil: a review of the current understanding. Chemical Engineering Journal 2001, 84:173-192.
17. Eow J.S., Ghadiri M. Motion, deformation and break-up of aqueous drops in oils under high electric field strengths. Chemical Engineering and Processing 2003, 42:259-272.
18. Eow J.S., Ghadiri M., Sharif A. Experimental studies of deformation and break-up of aqueous drops in high electric fields. Colloids and Surfaces A: Physicochemical and Engineering Aspects 2003, 225:193-210.
19. Eow J.S., Ghadiri M. The behaviour of a liquid-liquid interface and drop-interface coalescence under the influence of an electric field. Colloids and Surfaces A: Physicochemical and Engineering Aspects 2003, 215:101-123.
20. Eow J.S., Ghadiri M., Sharif A. Deformation and break-up of aqueous drops in dielectric liquids in high electric fields. Journal of Electrostatics 2001, 51-52:463-469.
21. Frising T., Noik C., Dalmazzone C. The liquid/liquid sedimentation process: from droplet coalescence to technologically enhanced water/oil emulsion gravity separators: a review. Journal of Dispersion Science and Technology 2006, 27:1035-1057.
22. Friberg, S.E., Jones, S., 1996. Emulsions. In: Kirk-Othmer Encyclopedia of Chemical Technology, fourth ed., vol. 9, pp. 393-413.
23. Goto M., Irie J., Kondo K., Nakashio F. Electrical demulsification of W/O emulsion by continuous tubular coalescer. Journal of Chemical Engineering of Japan 1989, 22:401-406.
24. Holto, J., Berg, G., Lundgaard, L.E., 2010. Electrocoalescence of drops in a water-in-oil emulsion, electrical insulation and dielectric phenomena, 2009. In: Proceedings of IEEE Conference on CEIDP '09, October 18-21 2009. Virginia Beach, VA, pp. 196-199.
25. Hsu E.C., Li N.N. Membrane recovery in liquid membrane separation processes. Separation Science and Technology 1985, 20:115-130.
26. Kokal S.L. Crude oil emulsions: a state-of-the-art review. SPE Production and Operations 2005, 20:5-13.
27. Klasson K.T., Taylor P.A., Walker J.F., Jones S.A., Cummins R.L., Richardson S.A. Modification of a centrifugal separator for in-well oil-water separation. Separation Science and Technology 2005, 40:453-462.
28. Lorain O., Thiebaud P., Badorc E., Aurelle Y. Potential of freezing in wastewater treatment: soluble pollutant applications. Water Research 2001, 35:541-547.
29. Lissant K.J. Demulsification: Industrial Application, Surfactant Science Series 1983, Marcel Dekker, New York.
30. Mohammed R.A., Bailey A.I., Luckham P.F., Taylor S.E. Dewatering of crude oil emulsions 3. Emulsion resolution by chemical means. Colloids and Surfaces A: Physicochemical and Engineering Aspects 1994, 83:261-271.
31. Mohammed R.A., Bailey A.I., Luckham P.F., Taylor S.E. Dewatering of crude oil emulsions 1. Rheological behaviour of the crude oil-water interface. Colloids and Surfaces A: Physicochemical and Engineering Aspects 1993, 80:223-235.
32. Mousavichoubeh M., Ghadiri M., Shariaty-Niassar M. Electro-coalescence of an aqueous droplet at an oil-water interface. Chemical Engineering and Processing: Process Intensification 2011, 50:338-344.
33. Pal R. Techniques for measuring the composition (oil and water content) of emulsions-a state of the art review. Colloids and Surfaces A: Physicochemical and Engineering Aspects 1994, 84:141-193.
34. Rommel W., Meon W., Blass E. Hydrodynamic modeling of droplet coalescence at liquid-liquid interfaces. Separation Science and Technology 1992, 27:129-159.
35. Sjöblom J., Aske N., Harald Auflem I., Brandal Ø., Erik Havre T., Sther Ø., Westvik A., Eng Johnsen E., Kallevik H. Our current understanding of water-in-crude oil emulsions: recent characterization techniques and high pressure performance. Advances in Colloid and Interface Science 2003, 100-102:399-473.
36. Sun D., Jong S.C., Duan X., Zhou D. Demulsification of water-in-oil emulsion by wetting coalescence materials in stirred- and packed-columns. Colloids and Surfaces A: Physicochemical and Engineering Aspects 1999, 150:69-75.
37. Sun D., Duan X., Li W., Zhou D. Demulsification of water-in-oil emulsion by using porous glass membrane. Journal of Membrane Science 1998, 146:65-72.
38. Sihvola A. Mixing rules with complex dielectric coefficients. Subsurface Sensing Technologies and Applications 2000, 1:393-415.
39. Tsouris C., Shin W.T., Yiacoumi S. Pumping, Spraying, and Mixing of Fluids by Electric Fields: Engineering Research on Mixing: State of the Art 1998, Wiley, Malden, MA, (ETATS-UNIS).
40. Taylor G. Disintegration of water drops in an electric field. Proceedings of the Royal Society of London. Series A, Mathematical and Physical Sciences 1964, 280:383-397.
41. Urdahl O., Nordstad K., Berry P., Wayth N., Williams T., Bailey A., Thew M. Development of a new, compact electrostatic coalescer concept. SPE Production and Operations 2001, 16:4-8.
42. Whitby C.P., Fornasiero D., Ralston J. Effect of oil soluble surfactant in emulsions stabilised by clay particles. Journal of Colloid and Interface Science 2008, 323:410-419.
43. Williams, T.J., 1989. The resolution of water-in-oil emulsions by the application of an external electric field. Ph.D. Thesis. University of Southampton.
44. Zagnoni M., Le Lain G., Cooper J.M. Electrocoalescence mechanisms of microdroplets using localized electric fields in microfluidic channels. Langmuir 2010, 26:14443-14449.