Maxwell-Stefan modeling of mass transfer in solvent impregnated resins

Journal article (2015)

Authors

J Bokhove External organisation
PJAM Kerkhof External organisation
B Schuur External organisation
A.B. de Haan ChemE/Transport Phenomena - AS
Research Group
ChemE/Transport Phenomena (AS) (TU Delft)
More Info
expand_more

Published Date

2015

Language

English

Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Faculty

Applied Sciences

Department

ChemE/Chemical Engineering

Research Group

ChemE/Transport Phenomena

Abstract

Solventimpregnatedresinsarepromisingfortheremovalofpolarorganiccompoundsfromaqueous streams, buthavelowmass-transferrates.
Athoroughunderstandingofthephenomenaoccurringinside the oresofthesolventimpregnatedresinisthereforerequired.Inthisstudyamathematicalmodelwas
developed todescribethesimultaneousdiffusionandreaction.Thediffusionwasdescribedusingthe
Maxwell¿Stefanapproachtowardsmulti-componentdiffusionandincludedthevolume-expansionof
the organicphase.Themodelwasvalidatedusingexperimentaldatafromtheliteratureonthe
extractionofphenolbyCyanex923impregnatedinmacro-porouspolypropylene.Themodeldescribed
the experimentaldataasfunctionoftemperatureandinitialconcentrationaccuratelywithan R240.96
and aregressedreactionrateconstantwithaconfidence intervalof 76%. Analysisofthemodelresults
revealedthatmulti-componenteffectsasdescribedbytheMaxwell¿Stefanmodelwereoflimited
importance whereasthevolumeexpansionwasessentialtoaccuratelydescribetheexperimentaldata.