Interfacial mass transfer in ternary liquid-liquid systems

Kai Fabian Kruber, Marius Krapoth, Tim Zeiner

Research output: Contribution to journalArticleResearchpeer-review

Abstract

In this work, the interfacial mass transfer in two extraction systems, namely acetone-toluene-water (System I) and hexane-heptane-methanol (System II), was examined experimentally and theoretically. The interfacial mass transfer was experimentally examined by using a Nitsch-Cell. As theoretical approach the density gradient theory (DGT) in combination with the Koningveld-Kleintjens (KK) model was used. At first, the KK-model was used to model the liquid-liquid equilibrium of System I and System II. In combination of the KK-model with the DGT, the interfacial tension was modelled by fitting the influence parameter of the DGT. To estimate the required mutual mobility coefficients in each system, bulk diffusion coefficient coefficients were used. It was shown, that the DGT in combination with a thermodynamic model and experimental information of the bulk diffusion coefficients and the system's interfacial tension is able to model the interfacial mass transfer. Moreover, it can be stated that the DGT predicts a high enrichment of acetone in System I and this enrichment has an influence on the mass transfer.

Original languageEnglish
Pages (from-to)54-63
Number of pages10
JournalFluid phase equilibria
Volume440
DOIs
Publication statusPublished - 25 May 2017

Fingerprint

mass transfer
Mass transfer
Liquids
gradients
liquids
Acetone
acetone
Surface tension
interfacial tension
diffusion coefficient
Heptanes
Toluene
Hexanes
Heptane
coefficients
heptanes
Hexane
Methanol
toluene
methyl alcohol

Keywords

  • Density gradient theory
  • Extraction
  • Interface
  • Mass transfer
  • Nitsch-Cell

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Cite this

Interfacial mass transfer in ternary liquid-liquid systems. / Kruber, Kai Fabian; Krapoth, Marius; Zeiner, Tim.

In: Fluid phase equilibria, Vol. 440, 25.05.2017, p. 54-63.

Research output: Contribution to journalArticleResearchpeer-review

Kruber, Kai Fabian ; Krapoth, Marius ; Zeiner, Tim. / Interfacial mass transfer in ternary liquid-liquid systems. In: Fluid phase equilibria. 2017 ; Vol. 440. pp. 54-63.
@article{7c6a7d17f46f4abb8400deb8df0e8e2a,
title = "Interfacial mass transfer in ternary liquid-liquid systems",
abstract = "In this work, the interfacial mass transfer in two extraction systems, namely acetone-toluene-water (System I) and hexane-heptane-methanol (System II), was examined experimentally and theoretically. The interfacial mass transfer was experimentally examined by using a Nitsch-Cell. As theoretical approach the density gradient theory (DGT) in combination with the Koningveld-Kleintjens (KK) model was used. At first, the KK-model was used to model the liquid-liquid equilibrium of System I and System II. In combination of the KK-model with the DGT, the interfacial tension was modelled by fitting the influence parameter of the DGT. To estimate the required mutual mobility coefficients in each system, bulk diffusion coefficient coefficients were used. It was shown, that the DGT in combination with a thermodynamic model and experimental information of the bulk diffusion coefficients and the system's interfacial tension is able to model the interfacial mass transfer. Moreover, it can be stated that the DGT predicts a high enrichment of acetone in System I and this enrichment has an influence on the mass transfer.",
keywords = "Density gradient theory, Extraction, Interface, Mass transfer, Nitsch-Cell",
author = "Kruber, {Kai Fabian} and Marius Krapoth and Tim Zeiner",
year = "2017",
month = "5",
day = "25",
doi = "10.1016/j.fluid.2017.02.013",
language = "English",
volume = "440",
pages = "54--63",
journal = "Fluid phase equilibria",
issn = "0378-3812",
publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Interfacial mass transfer in ternary liquid-liquid systems

AU - Kruber, Kai Fabian

AU - Krapoth, Marius

AU - Zeiner, Tim

PY - 2017/5/25

Y1 - 2017/5/25

N2 - In this work, the interfacial mass transfer in two extraction systems, namely acetone-toluene-water (System I) and hexane-heptane-methanol (System II), was examined experimentally and theoretically. The interfacial mass transfer was experimentally examined by using a Nitsch-Cell. As theoretical approach the density gradient theory (DGT) in combination with the Koningveld-Kleintjens (KK) model was used. At first, the KK-model was used to model the liquid-liquid equilibrium of System I and System II. In combination of the KK-model with the DGT, the interfacial tension was modelled by fitting the influence parameter of the DGT. To estimate the required mutual mobility coefficients in each system, bulk diffusion coefficient coefficients were used. It was shown, that the DGT in combination with a thermodynamic model and experimental information of the bulk diffusion coefficients and the system's interfacial tension is able to model the interfacial mass transfer. Moreover, it can be stated that the DGT predicts a high enrichment of acetone in System I and this enrichment has an influence on the mass transfer.

AB - In this work, the interfacial mass transfer in two extraction systems, namely acetone-toluene-water (System I) and hexane-heptane-methanol (System II), was examined experimentally and theoretically. The interfacial mass transfer was experimentally examined by using a Nitsch-Cell. As theoretical approach the density gradient theory (DGT) in combination with the Koningveld-Kleintjens (KK) model was used. At first, the KK-model was used to model the liquid-liquid equilibrium of System I and System II. In combination of the KK-model with the DGT, the interfacial tension was modelled by fitting the influence parameter of the DGT. To estimate the required mutual mobility coefficients in each system, bulk diffusion coefficient coefficients were used. It was shown, that the DGT in combination with a thermodynamic model and experimental information of the bulk diffusion coefficients and the system's interfacial tension is able to model the interfacial mass transfer. Moreover, it can be stated that the DGT predicts a high enrichment of acetone in System I and this enrichment has an influence on the mass transfer.

KW - Density gradient theory

KW - Extraction

KW - Interface

KW - Mass transfer

KW - Nitsch-Cell

UR - http://www.scopus.com/inward/record.url?scp=85014712751&partnerID=8YFLogxK

U2 - 10.1016/j.fluid.2017.02.013

DO - 10.1016/j.fluid.2017.02.013

M3 - Article

VL - 440

SP - 54

EP - 63

JO - Fluid phase equilibria

JF - Fluid phase equilibria

SN - 0378-3812

ER -