Considering size distribution of dispersed droplets

the motion of dispersed droplets in W/O emulsion was simulated in a demulsification process under high electrostatic voltage.The results from simulation and experiment showed that under the effect of electrostatic electrical field

the droplet group moved from one electrode to the other electrode

so that the local droplet concentration increased gradually along the motion direction and the concentration reached a maximum value in the vicinity of the other electrode.The droplet concentration in the vicinity of electrode approximately linearly increased with the time of electrostatic action.The rate of increase of droplet concentration in the vicinity of electrode under a higher applied voltage was larger than that under a lower applied voltage in same time interval.To improve demulsification efficiency by increasing voltage was therefore superior to that by extending time.In addition

since the large droplet had a relatively larger velocity

the demulsification efficiency for the emulsion with large dispersed droplets would be higher.