Study of droplet behaviour along a pulsed liquid-liquid extraction column in the presence of nanoparticles

Khoobi, N ; Sharif University of Technology | 2013

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  1. Type of Document: Article
  2. DOI: 10.1002/cjce.21679
  3. Publisher: 2013
  4. Abstract:
  5. In this article, droplet size and its distribution along a pulsed liquid-liquid extraction column, is studied where SiO2 nanoparticles with concentrations of 0.01, 0.05 and 0.1vol.% and different hydrophobicities are applied to the dispersed phase. Using ultrasonication, nanoparticles were dispersed in kerosene as the base fluid. Nanofluids' stability was ensured using a UV-vis spectrophotometer. Some 22,000 droplets were measured by photographic technique and results were compared with systems containing no-nanoparticles (Water-Acetic acid-Kerosene). Addition of nanoparticles changed the droplet shape from ellipsoidal to spherical. Also, there was a marked influence on droplet breakage and droplet coalescence at 0.01vol.%, and 0.05vol.% or higher volume fractions, respectively
  6. Keywords:
  7. Pulsed column ; Dispersed phase ; Drop size distribution ; Droplet coalescence ; Droplet shape ; Droplet sizes ; Liquid-liquid extraction ; Nanofluids ; Photographic techniques ; Pulse intensity ; Ultra-sonication ; UV-Vis spectrophotometers ; Acetic acid ; Coalescence ; Drops ; Kerosene ; Nanoparticles ; Nanofluidics
  8. Source: Canadian Journal of Chemical Engineering ; Volume 91, Issue 3 , 2013 , Pages 506-515 ; 00084034 (ISSN)
  9. URL: http://onlinelibrary.wiley.com/doi/10.1002/cjce.21679/abstract