Abstract
In this communication, we report new experimental data on n-pentane, i-pentane, cyclopentane, n-hexane, and toluene solubility in water at low temperature (below 298.15 K) and atmospheric pressure conditions. The new experimental data together with those reported in the literature have been used in developing a new equation for Henry's constants of normal alkanes (methane to decane), BETEX compounds, and acid gases in aqueous phase over a wide range of temperature (typically from 273.15 K to 373.15 K). The new equation is based on a thermodynamic model, which uses the Peng-Robinson equation of state combined with the classical quadratic mixing rules for modelling non-aqueous phases, while the NRTL model is used to calculate the water activity. The predictions of the developed thermodynamic model are compared to the experimental data and the results of a thermodynamic approach, which uses the Valderrama modification of the Patel-Teja equation of state and non-density dependent mixing rules for modelling all fluid phases. Good agreement is observed between the experimental data and the model predictions. © 2008 Elsevier Ltd. All rights reserved.
| Original language | English |
|---|---|
| Pages (from-to) | 1030-1037 |
| Number of pages | 8 |
| Journal | Journal of Chemical Thermodynamics |
| Volume | 40 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - Jun 2008 |
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Keywords
- Experimental measurements
- Henry's constant
- Hydrocarbon
- Solubility
- Thermodynamic model
- Water
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Development of a Henry's constant correlation and solubility measurements of n-pentane, i-pentane, cyclopentane, n-hexane, and toluene in water. / Chapoy, Antonin; Haghighi, Hooman; Tohidi, Bahman.
In: Journal of Chemical Thermodynamics, Vol. 40, No. 6, 06.2008, p. 1030-1037.Research output: Contribution to journal › Article
TY - JOUR
T1 - Development of a Henry's constant correlation and solubility measurements of n-pentane, i-pentane, cyclopentane, n-hexane, and toluene in water
AU - Chapoy, Antonin
AU - Haghighi, Hooman
AU - Tohidi, Bahman
PY - 2008/6
Y1 - 2008/6
N2 - In this communication, we report new experimental data on n-pentane, i-pentane, cyclopentane, n-hexane, and toluene solubility in water at low temperature (below 298.15 K) and atmospheric pressure conditions. The new experimental data together with those reported in the literature have been used in developing a new equation for Henry's constants of normal alkanes (methane to decane), BETEX compounds, and acid gases in aqueous phase over a wide range of temperature (typically from 273.15 K to 373.15 K). The new equation is based on a thermodynamic model, which uses the Peng-Robinson equation of state combined with the classical quadratic mixing rules for modelling non-aqueous phases, while the NRTL model is used to calculate the water activity. The predictions of the developed thermodynamic model are compared to the experimental data and the results of a thermodynamic approach, which uses the Valderrama modification of the Patel-Teja equation of state and non-density dependent mixing rules for modelling all fluid phases. Good agreement is observed between the experimental data and the model predictions. © 2008 Elsevier Ltd. All rights reserved.
AB - In this communication, we report new experimental data on n-pentane, i-pentane, cyclopentane, n-hexane, and toluene solubility in water at low temperature (below 298.15 K) and atmospheric pressure conditions. The new experimental data together with those reported in the literature have been used in developing a new equation for Henry's constants of normal alkanes (methane to decane), BETEX compounds, and acid gases in aqueous phase over a wide range of temperature (typically from 273.15 K to 373.15 K). The new equation is based on a thermodynamic model, which uses the Peng-Robinson equation of state combined with the classical quadratic mixing rules for modelling non-aqueous phases, while the NRTL model is used to calculate the water activity. The predictions of the developed thermodynamic model are compared to the experimental data and the results of a thermodynamic approach, which uses the Valderrama modification of the Patel-Teja equation of state and non-density dependent mixing rules for modelling all fluid phases. Good agreement is observed between the experimental data and the model predictions. © 2008 Elsevier Ltd. All rights reserved.
KW - Experimental measurements
KW - Henry's constant
KW - Hydrocarbon
KW - Solubility
KW - Thermodynamic model
KW - Water
UR - http://www.scopus.com/inward/record.url?scp=43049124718&partnerID=8YFLogxK
U2 - 10.1016/j.jct.2008.01.019
DO - 10.1016/j.jct.2008.01.019
M3 - Article
VL - 40
SP - 1030
EP - 1037
JO - Journal of Chemical Thermodynamics
JF - Journal of Chemical Thermodynamics
SN - 0021-9614
IS - 6
ER -