Chemical and Petroleum Engineering

, Volume 53, Issue 11–12, pp 765–768 | Cite as

Analysis of Methods for Improving the Efficiency of Coalescence Process in Electric Oil Desalination and Dehydration Plants

  • K. V. Tarantsev
  • K. R. Tarantseva
  • E. G. Krasnaya

The methods for increasing the efficiency of the coalescence process in electric desalination and dehydration of oil are analyzed. It is shown that one of the main reasons for the decrease in the efficiency of operation of the electric dehydrators is failure to take account of several phenomena that accompany the formation of chains of water droplets between the electrodes when water-oil emulsions break up. In this case, the dispersion phenomenon in the region directly adjoining the electrodes makes the most contribution to formation of a large quantity of fine water droplets and to deterioration of the electric dehydrator performance. To increase the electric dehydrator efficiency, it is proposed that the size of the electrode and its potential be so chosen that no dispersion occurs near the electrode or the electrode surface is protected with a coating that transmits electric charge in a quantity sufficient to sustain the coalescence process, but insufficient for the dispersion process.


water-oil emulsion coalescence electric desalination of oil electric dehydration of oil electric dehydrator 


  1. 1.
    J. S. Eow, M. Ghadiri, A. O. Sharif, and T. J. Williams, “Electrostatic enhancement of coalescence of water droplets in oil: A review of current understanding,” Chem. Eng. J., 84, 173–192 (2001).CrossRefGoogle Scholar
  2. 2.
    J. Raisin, P. Atten, and J.-L. Reboud, Field Induced Coalescence of Two Free Water Drops in a Viscous Dielectric Field, Auth. Manuscript published in “ICDL 2011, Trondheim, Norway (2011)” GrElab (Grenoble Electrical Engineering Laboratory) CNRS, Grenoble INP & Joseph Fourier University, Grenoble, France.Google Scholar
  3. 3.
    J. O. Hinze, “Fundamentals of the hydrodynamic mechanism of splitting in dispersion processes,” AIChE J., 1, No. 3, 289–295 (1955).CrossRefGoogle Scholar
  4. 4.
    J. Raisin, Electrocoalescence in Water-in-Oil Emulsions: Towards an Efficiency Criterion: PHD Report, April 8, 2011, Univ. of Grenoble, France.Google Scholar
  5. 5.
    K. V. Tarantsev, “The stability loss of water droplets in a homogeneous electric field,” Proc. 11th Int. Conf. Modern Problems of Electrophysics and Electrohydrodynamics, June 29 – July 3, 2015, St. Petersburg, IDES Petrograd (2015), pp. 368–371.Google Scholar
  6. 6.
    W. D. Ristenpart, J. C. Bird, A. Belmonte, et al., “Noncoalescence of oppositely charged drops,” Nature, 461, 377–380 (2009).CrossRefGoogle Scholar
  7. 7.
    K. V. Tarantsev, Electrohydrodynamic Emulsification and Devices Operating on Its Basis: Dissert. Cand. Techn. Sci., MGAKhM, Moscow (1997).Google Scholar
  8. 8.
    A. A. Gureev, A. Yu. Abyzgil’din, V. M. Kapustin, et al., Separation of Water-Oil Emulsions: Textbook, Neft i Gaz, Moscow (2002).Google Scholar
  9. 9.
    V. V. Butkov and K. V. Tarantsev, Invent. Cert. 1823097 USSR, ICI H 02 K 44/00, “Electrohydrodynamic pump,” publ. 06.23.1993, Byull., No. 23.Google Scholar
  10. 10.
    K. V. Tarantsev, Patent 2452551 RF, IPC B01B 17/06, “A device for separation of water-oil emulsions in electric field,” publ. 06.10.2012, Byull., No. 16.Google Scholar

Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  • K. V. Tarantsev
    • 1
  • K. R. Tarantseva
    • 2
  • E. G. Krasnaya
    • 2
  1. 1.Penza State UniversityPenzaRussia
  2. 2.Penza State Technological UniversityPenzaRussia

Personalised recommendations