[HTML][HTML] Emulsions in external electric fields

J Sjöblom, S Mhatre, S Simon, R Skartlien… - Advances in Colloid and …, 2021 - Elsevier
Water is co-produced with crude oils, generally in the form of water-in-crude oil emulsions.
The oil and water phases need to be separated before export. Separation is performed in …

Drop-interface electrocoalescence mode transition under a direct current electric field

B Li, Z Wang, V Vivacqua, M Ghadiri, J Wang… - Chemical Engineering …, 2020 - Elsevier
The electrocoalescence of a water drop at the water/oil interface in the presence of
externally direct current electric fields was numerically analyzed with the finite element …

Effect of electric field strength and droplet diameter on droplet–interface coalescence mechanism

D Yang, H Sun, M Li, Q Li, X Gao, C Chen… - Chemical Engineering …, 2023 - Elsevier
Under high-strength electric fields, partial coalescence may occur, thus producing fine
secondary droplets, which are undesirable for separating water from oil. In this study …

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 …

Coalescence dynamic response of an aqueous droplet at an oil-water interface under a steady electric field

B Li, X Dou, K Yu, Y Huang, W Zhang, H Xu… - International Journal of …, 2021 - Elsevier
The electrocoalescence of an aqueous droplet at the oil-water interface in the presence of
externally direct current electric fields was numerically analyzed with the finite element …

Electrocoalescence of water droplets in sunflower oil using a novel electrode geometry

B Li, V Vivacqua, J Wang, Z Wang, Z Sun… - … Research and Design, 2019 - Elsevier
Electrocoalescence is an energy-efficient and environmentally-friendly process for breaking
water-in-oil emulsions. It has been used extensively in the oil and petroleum industries …

Electrical dehydration performance of shale oil: From emulsification characteristics to dehydration mechanisms

D Yang, M Li, X Cheng, Q Feng, F Yang, L He - Colloids and Surfaces A …, 2023 - Elsevier
Shale oil, as a successor to ordinary crude oil, has received extensive attention. However,
the high-stability shale oil emulsions are still challenging for electrical dehydration systems …

The secondary drop formation of nanoparticle/surfactant-stabilized water droplets under non-uniform electric fields

B Li, K Yu, J Xu, Z Wang, J Wang, W Zhang… - International Journal of …, 2020 - Elsevier
Electrocoalescence is an energy-efficient and environmentally-friendly process for breaking
water-in-oil emulsions. It has been used extensively in the oil and petroleum industries. In …

Experimental Evidence of Enhanced Adsorption Dynamics at Liquid–Liquid Interfaces under an Electric Field

S Mhatre, S Simon, J Sjöblom - Analytical Chemistry, 2020 - ACS Publications
In this work, we investigate the adsorption of surface-active compounds at the water–oil
interface subjected to an electric field. A fluid system comprising a pendent water drop …

Molecular Dynamics Simulation of a Brine Droplet under an Electric Field: Distinct Behavior Shown by NaCl and CaCl2

W Li, H Zeng, T Tang - The Journal of Physical Chemistry B, 2023 - ACS Publications
Electrostatic demulsification is a promising technique to disrupt petroleum emulsions.
However, the presence of salts in the emulsion can influence the effectiveness of the electric …