Maxwell-Stefan modeling of mass transfer in solvent impregnated resins

J. Bokhove, P.J.A.M. Kerkhof, Boelo Schuur, A.B. de Haan

Research output: Contribution to journalArticleAcademicpeer-review

1 Citation (Scopus)

Abstract

Solvent impregnated resins are promising for the removal of polar organic compounds from aqueous streams, but have low mass-transfer rates. A thorough understanding of the phenomena occurring inside the pores of the solvent impregnated resin is therefore required. In this study a mathematical model was developed to describe the simultaneous diffusion and reaction. The diffusion was described using the Maxwell–Stefan approach towards multi-component diffusion and included the volume-expansion of the organic phase. The model was validated using experimental data from the literature on the extraction of phenol by Cyanex923 impregnated in macro-porous polypropylene. The model described the experimental data as function of temperature and initial concentration accurately with an R2>0.96 and a regressed reaction rate constant with a confidence interval of ±6%. Analysis of the model results revealed that multi-component effects as described by the Maxwell–Stefan model were of limited importance whereas the volume expansion was essential to accurately describe the experimental data.
Original languageEnglish
Pages (from-to)139-149
Number of pages11
JournalChemical engineering science
Volume132
DOIs
Publication statusPublished - 2015

Keywords

  • METIS-311287
  • IR-97485

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