The impact of electric field on the demulsification efficiency in an electro-coalescence process

被引：15
|
作者：
Yasir, Ahmed T. [1 ]
Hawari, Alaa H. [1 ]
Talhami, Mohammed [1 ]
Baune, M. [2 ]
Thoeming, J. [2 ]
Du, Fei [2 ]
机构：
[1] Qatar Univ, Dept Civil & Architectural Engn, POB 2713, Doha, Qatar
[2] Univ Bremen, Ctr Environm Res & Sustainable Technol, Leobener Str 6, D-28359 Bremen, Germany
来源：
JOURNAL OF ELECTROSTATICS | 2023年 / 122卷
关键词：
Water-in-oil emulsion; Dielectrophoresis; Demulsification; High frequency alternating current; WATER-IN-OIL; AQUEOUS DROPS; EMULSIONS; SEPARATION; CHAIN;
D O I：
10.1016/j.elstat.2023.103796
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this study, the influence of the electric field and its determining parameters such as voltage, inter-electrode distance and frequency on the demulsification efficiency of a water-in-oil emulsion was studied. The numeri-cal analysis showed that the water droplets trapped onto the hydrophobic titanium dioxide (TiO2) coated electrodes and at 2 mm inter-electrode distance can increase the electric field intensity above 300 kV/m, where droplet rupture takes place. Experimental study showed highest demulsification efficiency of 76% while applying AC voltage of 250 V, frequency of 200 kHz and inter-electrode distance of 4 mm.
引用
收藏
页数：11
相关论文
共 50 条
  • [1] Electro-coalescence of heterogeneous paired-droplets under AC electric field
    Tao, Zhi
    Fang, Weidong
    Li, Haiwang
    Yin, Shuai
    Xu, Tiantong
    Wong, Teckneng
    Huang, Yi
    DROPLET, 2024, 3 (04):
  • [2] Electro-Coalescence of Digitally Controlled Droplets
    Niu, Xize
    Gielen, Fabrice
    deMello, Andrew J.
    Edel, Joshua B.
    ANALYTICAL CHEMISTRY, 2009, 81 (17) : 7321 - 7325
  • [3] Electro-coalescence of water drops in oils under pulsatile electric fields
    Mousavi, S. H.
    Ghadiri, M.
    Buckley, M.
    CHEMICAL ENGINEERING SCIENCE, 2014, 120 : 130 - 142
  • [4] A multiphase ISPH method for simulation of droplet coalescence and electro-coalescence
    Rahmat, A.
    Yildiz, M.
    INTERNATIONAL JOURNAL OF MULTIPHASE FLOW, 2018, 105 : 32 - 44
  • [5] Electro-coalescence in step emulsification: dynamics and applications
    Huang, Xing
    He, Binbin
    Xu, Zhongbin
    Pei, Hao
    Ruan, Yun Jie
    LAB ON A CHIP, 2020, 20 (03) : 592 - 600
  • [6] Effect of hydrolyzed polyacrylamide used in polymer flooding on droplet-interface electro-coalescence: Variation of critical electric field strength of partial coalescence
    Yang, Donghai
    Sun, Yongxiang
    Ghadiri, Mojtaba
    Wu, Huanyu
    Qiao, Heming
    He, Limin
    Luo, Xiaoming
    Lu, Yuling
    SEPARATION AND PURIFICATION TECHNOLOGY, 2019, 227
  • [7] Electro-coalescence of two charged droplets under constant and pulsed DC electric fields
    Wang, Bing-Bing
    Wang, Xiao-Dong
    Wang, Tian-Hu
    Lu, Gui
    Yan, Wei-Mon
    INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2016, 98 : 10 - 16
  • [8] Controlled electro-coalescence/non-coalescence on lubricating fluid infused slippery surfaces
    Barman, Jitesh
    Nagarajan, Arun Kumar
    Khare, Krishnacharya
    RSC ADVANCES, 2015, 5 (128): : 105524 - 105530
  • [9] An electro-coalescence chip for effective emulsion breaking in droplet microfluidics
    Chokkalingam, Venkatachalam
    Ma, Yujie
    Thiele, Julian
    Schalk, Werner
    Tel, Jurjen
    Huck, Wilhelm T. S.
    LAB ON A CHIP, 2014, 14 (14) : 2398 - 2402
  • [10] Electro-coalescence of an aqueous droplet at an oil-water interface
    Mousavichoubeh, M.
    Ghadiri, M.
    Shariaty-Niassar, M.
    CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION, 2011, 50 (03) : 338 - 344
12345