Modeling of drop sedimentation in liquid-liquid phase separation

Bhumphong Rajcharak, Jan Bernd Bol, Pornprapa Bol, Tawiwan Kangsadan, Matthäus Siebenhofer

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Abstract

In the chemical industry, liquid-liquid dispersions are often separated with settlers. During separation a sedimentation curve and a coalescence curve can be detected. Both curves show a characteristic, seemingly a sigmoidal S-shape curve. The settling curves can be fitted well with modified sigmoidal equations. Constants obtained from experimental data and target model were compared with the system’s physical properties. Factors to scale the sedimentation velocity seem to be linear changing with density and viscosity of the aqueous phase, while the factor to scale the separation time is converse. Moreover, this
work also proves, that sedimentation of large droplets deviates from rigid article settling due to oscillating phenomena, while small drop behave similar to particles.
Original languageEnglish
Title of host publicationConference Proceedings of the 12th Minisymposium Verfahrenstechnik
EditorsUlrich Hirn
Place of PublicationGraz
PublisherVerlag der Technischen Universität Graz
Pages207-211
ISBN (Electronic)978-3-85125-456-3
DOIs
Publication statusPublished - 30 Mar 2016

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Sedimentation
Phase separation
Liquids
Chemical industry
Coalescence
Dispersions
Physical properties
Viscosity

Keywords

  • extraction

Cite this

Rajcharak, B., Bol, J. B., Bol, P., Kangsadan, T., & Siebenhofer, M. (2016). Modeling of drop sedimentation in liquid-liquid phase separation. In U. Hirn (Ed.), Conference Proceedings of the 12th Minisymposium Verfahrenstechnik (pp. 207-211). Graz: Verlag der Technischen Universität Graz. https://doi.org/10.3217/978-3-85125-456-3

Modeling of drop sedimentation in liquid-liquid phase separation. / Rajcharak, Bhumphong; Bol, Jan Bernd; Bol, Pornprapa; Kangsadan, Tawiwan; Siebenhofer, Matthäus.

Conference Proceedings of the 12th Minisymposium Verfahrenstechnik. ed. / Ulrich Hirn. Graz : Verlag der Technischen Universität Graz, 2016. p. 207-211.

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Rajcharak, B, Bol, JB, Bol, P, Kangsadan, T & Siebenhofer, M 2016, Modeling of drop sedimentation in liquid-liquid phase separation. in U Hirn (ed.), Conference Proceedings of the 12th Minisymposium Verfahrenstechnik. Verlag der Technischen Universität Graz, Graz, pp. 207-211. https://doi.org/10.3217/978-3-85125-456-3
Rajcharak B, Bol JB, Bol P, Kangsadan T, Siebenhofer M. Modeling of drop sedimentation in liquid-liquid phase separation. In Hirn U, editor, Conference Proceedings of the 12th Minisymposium Verfahrenstechnik. Graz: Verlag der Technischen Universität Graz. 2016. p. 207-211 https://doi.org/10.3217/978-3-85125-456-3
Rajcharak, Bhumphong ; Bol, Jan Bernd ; Bol, Pornprapa ; Kangsadan, Tawiwan ; Siebenhofer, Matthäus. / Modeling of drop sedimentation in liquid-liquid phase separation. Conference Proceedings of the 12th Minisymposium Verfahrenstechnik. editor / Ulrich Hirn. Graz : Verlag der Technischen Universität Graz, 2016. pp. 207-211
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