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Slip velocity in pulsed disc and doughnut extraction columns

Torab Mostaedi, M ; Sharif University of Technology | 2011

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  1. Type of Document: Article
  2. DOI: 10.2298/CICEQ110123019T
  3. Publisher: 2011
  4. Abstract:
  5. In the present work, slip velocity has been measured in a 76 mm diameter pulsed disc and doughnut extraction column for four different liquid-liquid systems. The effects of operating variables including pulsation intensity and dispersed and continuous phase flow rates on slip velocity have been investigated. The existence of three different operational regimes, namely mixersettler, transition, and emulsion regimes, was observed when the energy input was changed. Empirical correlations are derived for prediction of the slip velocity in terms of operating variables, physical properties of the liquid systems, and column geometry for different regimes. Good agreement between prediction and experiments was found for all operating conditions that were investigated
  6. Keywords:
  7. Characteristic velocity ; Dispersed phase hold-up ; Pulsed disc and doughnut column ; Slip velocity
  8. Source: Chemical Industry and Chemical Engineering Quarterly ; Volume 17, Issue 3 , 2011 , Pages 333-339 ; 14519372 (ISSN)
  9. URL: http://www.doiserbia.nb.rs/Article.aspx?ID=1451-93721100019T#.Vyb85TG5JIE