Electrical demulsification of W/O emulsion by continuous tubular coalescer.

• Goto Masahiro

  Department of Organic Synthesis, Faculty of Engineering, Kyushu University

• Irie Jin

  Department of Organic Synthesis, Faculty of Engineering, Kyushu University

• Kondo Kazuo

  Department of Organic Synthesis, Faculty of Engineering, Kyushu University

• Nakashio Fumiyuki

  Department of Organic Synthesis, Faculty of Engineering, Kyushu University

Abstract

The continuous demulsification of W/O emulsion under applied A.C. voltage was investigated, using a tubular coalescer.<BR>The effects of water-phase holdup, applied voltage and water-droplet size on demulsification rate were investigated, using emulsions prepared under various conditions. The rate was proportional to the –1, 0.5 and 3rd power of water-phase holdup, applied voltage and water-droplet size, respectively. The experimental equation taking these contributions into account showed satisfactory agreement with the observed values. Further, the effects of surfactant, extractant and solvent on the rate were examined and it was found that the combination of the three strongly affects the rate.<BR>The energy consumption for continuous demulsification using the present apparatus is several kWh/m³-emulsion, so this coalescer can be applied to industrial processing.

Journal

• JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

  JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 22 (4), 401-406, 1989

  The Society of Chemical Engineers, Japan

Keywords

• Extraction
• Membrane Separation
• Electrical Demulsification
• Droplet Coalescer
• Liquid Membrane
• Surfactant
• W/O Emulsion

Details

• CRID: 1390282679546386176
• NII Article ID: 130000022039
• DOI: 10.1252/jcej.22.401
• COI: 1:CAS:528:DyaL1MXltlOisbY%3D
• ISSN: 18811299
• ISSN: 00219592
• ISSN: http://id.crossref.org/issn/00219592
• Web Site: http://www.jstage.jst.go.jp/article/jcej/22/4/22_4_401/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed