Electrical Demulsification of W/O Emulsion by Continuous Tubular Coalescer

Masahiro Goto, Jin Irie, Kazuo Kondo, Fumiyuki Nakashio

    Research output: Contribution to journalArticlepeer-review

    62 Citations (Scopus)

    Abstract

    The continuous demulsification of W/O emulsion under applied A.C. voltage was investigated, using a tubular coalescer. 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. The energy consumption for continuous demulsification using the present apparatus is several kWh/m3-emulsion, so this coalescer can be applied to industrial processing.

    Original languageEnglish
    Pages (from-to)401-406
    Number of pages6
    JournalJOURNAL OF CHEMICAL ENGINEERING OF JAPAN
    Volume22
    Issue number4
    DOIs
    Publication statusPublished - 1989

    All Science Journal Classification (ASJC) codes

    • Chemistry(all)
    • Chemical Engineering(all)

    Fingerprint

    Dive into the research topics of 'Electrical Demulsification of W/O Emulsion by Continuous Tubular Coalescer'. Together they form a unique fingerprint.

    Cite this