Investigation of Water Separation from Water-in-Oil Emulsion Using High-Frequency Pulsed AC Electric Field by New Equipment

2014 ◽  
Vol 36 (7) ◽  
pp. 918-923 ◽  
Author(s):  
Qing Li ◽  
Jiaqing Chen ◽  
Meng Liang ◽  
Zitong Pan ◽  
Kuisheng Wang
Keyword(s):  
Electric Field ◽  
High Frequency ◽  
Water Separation ◽  
Oil Emulsion ◽  
Ac Electric Field ◽  
Water In Oil Emulsion

Investigation of water separation from water-in-oil emulsion using electric field

2010 ◽  
Vol 16 (5) ◽  
pp. 684-687 ◽  
Author(s):  
Woo-Taeg Kwon ◽  
Kunyik Park ◽  
Sam Duck Han ◽  
Sung Min Yoon ◽  
Joo Yeon Kim ◽  
...  
Keyword(s):  
Electric Field ◽  
Water Separation ◽  
Oil Emulsion ◽  
Water In Oil Emulsion

Combination of electric field and medium coalescence for enhanced demulsification of water-in-oil emulsion

2021 ◽  
pp. 116680
Author(s):  
Hao Lu ◽  
Shihan Wu ◽  
Zhiqiang Miao ◽  
Xiao Xu ◽  
Yiqian Liu ◽  
...  
Keyword(s):  
Electric Field ◽  
Oil Emulsion ◽  
Water In Oil Emulsion

FABRICATION OF DISPERSED ALIGNED CARBON NANOTUBE ARRAY BETWEEN METAL ELECTRODES

2006 ◽  
Vol 05 (04n05) ◽  
pp. 389-394
Author(s):  
CHANGXIN CHEN ◽  
YAFEI ZHANG
Keyword(s):  
Carbon Nanotube ◽  
Electric Field ◽  
High Frequency ◽  
Metal Electrodes ◽  
Nanotube Array ◽  
Carbon Nanotube Array ◽  
Ac Electric Field ◽  
High Volatility ◽  
Surface Decoration ◽  
High Frequency Ac

Dispersed aligned single-wall carbon nanotube (SWCNT) array has been formed between electrodes by electric field assisted alignment of surface decorated SWCNTs. The surface decoration of SWCNTs with functional molecules allows them to dispersedly bridge metal electrodes and effectively obviates the entanglement between SWCNTs. The influences of solution volatility and electric-field type on the alignment are investigated. It is indicated that the well-oriented SWCNT array can be achieved by using the high-volatility solvent and the high-frequency AC electric field to align SWCNTs.

Characterization of interactive force acting on colloidal particles near an electrode in presence of a high-frequency (>10 kHz) AC electric field using particle diffusometry

2021 ◽  
Vol 1 (1) ◽  
Author(s):  
Kshitiz Gupta ◽  
Dong Hoon Lee ◽  
Steven T. Wereley ◽  
Stuart J. Williams
Keyword(s):  
Electric Field ◽  
Electric Fields ◽  
Particle Motion ◽  
Electrode Surface ◽  
High Frequency ◽  
Colloidal Particles ◽  
Low Frequency ◽  
Double Layers ◽  
Average Height ◽  
Ac Electric Field

Colloidal particles like polystyrene beads and metallic micro and nanoparticles are known to assemble in crystal-like structures near an electrode surface under both DC and AC electric fields. Various studies have shown that this self-assembly is governed by a balance between an attractive electrohydrodynamic (EHD) force and an induced dipole-dipole repulsion (Trau et al., 1997). The EHD force originates from electrolyte flow caused by interaction between the electric field and the polarized double layers of both the particles and the electrode surface. The particles are found to either aggregate or repel from each other on application of electric field depending on the mobility of the ions in the electrolyte (Woehl et al., 2014). The particle motion in the electrode plane is studied well under various conditions however, not as many references are available in the literature that discuss the effects of the AC electric field on their out-of-plane motion, especially at high frequencies (>10 kHz). Haughey and Earnshaw (1998), and Fagan et al. (2005) have studied the particle motion perpendicular to the electrode plane and their average height from the electrode mostly in presence of DC or low frequency AC (<1 kHz) electric field. However, these studies do not provide enough insight towards the effects of high frequency (>10 kHz) electric field on the particles’ motion perpendicular to the electrode plane.  

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