Dehydration efficiency of high-frequency pulsed DC electrical fields on water-in-oil emulsion

Colloids and Surfaces A: Physicochemical and Engineering Aspects

Volumn 373, Issue 1-3, 2011, Pages 130-137

  Zhang, Yanzhen ^a   Liu, Yonghong ^a   Ji, Renjie ^a  

^a CHINA UNIVERSITY OF PETROLEUM   (China)

Author keywords

Conductivity; Electrocoalescence; Emulsion; High frequency; Pulsed DC

Indexed keywords

DC GENERATORS; DEHYDRATION; DEWATERING; ELECTROSTATIC GENERATORS; EMULSIFICATION; EMULSIONS;

CONDUCTIVITY; DEHYDRATION EFFICIENCY; ELECTROCOALESCENCE; ELECTRODE DISTANCES; ELECTROSTATIC SEPARATION; HIGH FREQUENCY HF; MODEL PARAMETERS; OPERATIONAL VARIABLES; POWER FUNCTIONS; PULSE DURATIONS; PULSED DC; TIME CURVES; WATER IN OIL EMULSIONS;

DC POWER TRANSMISSION;

POLY(METHYL METHACRYLATE); WATER OIL CREAM;

ARTICLE; DEHYDRATION; DIRECT CURRENT; ELECTRIC CONDUCTIVITY; ELECTRIC FIELD; ELECTRODE; PRIORITY JOURNAL; STATIC ELECTRICITY;

EID: 78649968672     PISSN: 09277757     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.colsurfa.2010.10.043     Document Type: Article

References (20)

1. Less S., Hannisdal A., Sjoblom J. Dehydration efficiency of water-in-crude oil emulsions in alternating current electrical fields. J. Disper. Sci. Technol. 2008, 29:106-114.
2. Less S., Hannisdal A., Bjorklund E., Sjoblom J. Electrostatic destabilization of water-in-crude oil emulsions: application to a real case and evaluation of the Aibel VIEC technology. Fuel 2008, 87:2572-2581.
3. Eow J.S., Ghadiri M. Electrostatic enhancement of coalescence of water droplets in oil: a review of the technology. Chem. Eng. J. 2002, 85:357-368.
4. Eow J.S., Ghadiri M., Sharif A.O. Electro-hydrodynamic separation of aqueous drops from flowing viscous oil. J. Pet. Sci. Eng. 2007, 55:146-155.
5. 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. Chem. Eng. J. 2001, 84:173-192.
6. Eow J.S., Ghadiri M. Drop-drop coalescence in an electric field: the effects of applied electric field and electrode geometry. Colloids Surf. A: Physicochem. Eng. Asp. 2003, 219:253-279.
7. P.J. Bailes, Resolution of emulsions, US Patent 5580464 (1996).
8. J.M. Edmondson, Method and apparatus of oil/water de-emulsification, US Patent 5714048 (1998).
9. Midtgard O.-M. Electrostatic field theory and circuit analysis in the design of coalescers with pulsed dc voltage. Chem. Eng. J. 2009, 168-175.
10. Lee C.M., Sams G.W., Wagner J.P. Power consumption measurements for ac and pulsed dc for electrostatic coalescence of water-in-oil emulsions. J. Electrostatics 2001, 53:1-24.
11. Bailes P.J., Parsons A.R., Lee J.G.M. An experimental investigation into the motion of a single drop in a pulsed DC electric field. Chem. Eng. Res. Des. 2000, 78:499-505.
12. Azzam M.O.J., Omari R.M. Stability of egg white-stabilized edible oil emulsions using conductivity technique. Food Hydrocolloids 2002, 16:105-110.
13. Kato A., Fujishige T., Matsudomi N., Kobayashi K. Determination of emulsifying properties of some proteins by conductivity measurements. J. Food Sci. 1985, 50:56-62.
14. Suttiprasit P., Malah K.A., Guire J.M. On evaluating the emulsifying properties of protein using conductivity measurements. Food Hydrocolloids 1993, 7:241-253.
15. Williams T.J., Bailey A.G. Changes in the size distribution of a water-in-oil emulsion due to electric field induced coalescence. IEEE Trans. Ind. Appl. 1986, 1:536-541.
16. Bailes P.J., Stitt E.H. Column liquid contacting with vigorous agitation balanced by electrostatic coalescence. Chem. Eng. Res. Des. 1987, 65:514-523.
17. Eow J.S., Ghadiri M. The behavior of a liquid-liquid interface and drop-interface coalescence under the influence of an electric field. Colloids Surf. A: Physicochem. Eng. Asp. 2003, 215:101-123.
18. Higashiyama Y., Takada T.-I., Sugimoto T. Resonant vibration and flashover phenomena of a water droplet located on a hydrophobic sheet under ac field. J. Electrostatics 2005, 63:883-889.
19. Sample S.B., Raghupathy B., Hendricks C.D. Quiescent distortion and resonant oscillations of a liquid drop in an electric field. Int. J. Eng. Sci. 1970, 8:97-109.
20. Taylor S.E. Theory and practice of electrically enhanced phase separation of water-in-oil emulsions. Chem. Eng. Res. Des. 1996, 74:526-540.