Electro-coalescence of water drops in oils under pulsatile electric fields

SH Mousavi, M Ghadiri, M Buckley - Chemical Engineering Science, 2014 - Elsevier
Electric fields are commonly used to enhance the coalescence of water drops in oils.
However, this process could cause some undesirable phenomena such as secondary …

Review of the Dynamics of Coalescence and Demulsification by High‐Voltage Pulsed Electric Fields

Y Peng, T Liu, H Gong, X Zhang - International Journal of …, 2016 - Wiley Online Library
The coalescence of droplets in oil can be implemented rapidly by high‐voltage pulse electric
field, which is an effective demulsification dehydration technological method. At present, it is …

Molecular dynamics study on the coalescence and break-up behaviors of ionic droplets under DC electric field

F Song, H Niu, J Fan, Q Chen, G Wang, L Liu - Journal of Molecular Liquids, 2020 - Elsevier
Electric coalescence is an effective way to achieve high performance of separating small
dispersed water droplets from oils. We investigated the coalescence and break-up …

Ultra-high frequency and Self-adaptive voltage technology for water separation from oil emulsion

D Yang, H Wu, H Sun, L He, Y Guo - Separation and Purification …, 2021 - Elsevier
Electrical dehydrators are often used to separate water from oil emulsions. However, the
frequency and electric field strength are fixed during separation and cannot change with the …

Understanding the breakup mechanism of a droplet under a DC electric field with molecular dynamics simulations and weak interaction analysis

N Li, Z Sun, Y Fan, W Liu, Y Guo, B Li… - Journal of Molecular …, 2021 - Elsevier
Electrical dispersion of a water-in-oil emulsion under an electric field has an inhibitory effect
on the eletrocoalescence. To clarify the mechanism of droplet breakup at the microscopic …

Effect of electric field intensity on droplet fragmentation in oil-in-water-in-oil (O/W/O) emulsions: A molecular dynamics study

Z Sun, W Li, Q Chen, N Li, S Weng, Y Liu, T Liu… - Separation and …, 2023 - Elsevier
Abstract Oil-in-water-in-oil (O/W/O) emulsions commonly exist in crude oil treatment, food
processing, pharmaceuticals, and cosmetics; however, few related studies have been …

Electrocoalescence of water drop trains in oil under constant and pulsatile electric fields

V Vivacqua, S Mhatre, M Ghadiri, AM Abdullah… - … Research and Design, 2015 - Elsevier
This study addresses the effectiveness of constant and pulsed DC fields in promoting
coalescence of dispersed water drops in an oil-continuous phase. For this purpose, a train of …

Emulsification characteristics and dehydration of shale oil emulsions under high-frequency electric field

D Yang, X Cheng, T Wang, Y Liu, M Li, L He - Chemical Engineering and …, 2024 - Elsevier
In the face of depleting conventional oil and natural gas reserves, the exploitation of shale
oil resources increasingly important. However, the high stability of shale oil emulsions …

Electro-coalescence of two charged droplets under constant and pulsed DC electric fields

BB Wang, XD Wang, TH Wang, G Lu… - International Journal of …, 2016 - Elsevier
In the presence of electric field induced by either constant or pulsed direct current (DC), a
critical electric strength (E c) exists for the transition from full coalescence to partial …

Deformation and Vibration of Droplet in Oil Subjected to a Chaotic-Pulse-Width-Modulation Electric Field

Y Peng, Y Zhang, Z Liao, Y Fang, B Yu… - Journal of Molecular …, 2023 - Elsevier
The pulsed electric field with constant frequency has difficulty exerting the maximum
demulsification potentiality, because dynamic changes in droplet size during the electric …