Multistage counter-current solvent extraction in a flat membrane microcontactor

Jonas Hereijgers, Nicolas Van Oeteren, Joeri Denayer, Tom Breugelmans, Wim De Malsche

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Co-current, multistage counter-current and in situ counter-current extraction is demonstrated in a membrane microcontactor, by extracting benzyl alcohol from n-heptane with water as extractant, without the need for active pressure control or additional pumps in between stages. An analytical model to describe the concentration profile as a function of the residence time is presented for the different configurations. From the obtained experimental results the Sherwood number is determined for a channel filled with diamond shaped pillars having an aspect ratio of 3. This allows to calculate the local mass transfer coefficients and to determine the mass transfer kinetics. The obtained model can be used for the prediction of purity levels and allows to optimize the set-up configuration.
Original languageEnglish
Pages (from-to)138-146
Number of pages9
JournalChemical Engineering Journal
Volume273
DOIs
Publication statusPublished - 2015

Keywords

  • Extraction
  • Multistage
  • Countercurrent
  • Membrane microcontactor
  • Extractor
  • Microdevice

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