TY - JOUR
T1 - High Pressure Solubility of Light Gases (CH4, C2H6, C3H8, H2S, CO2, N2, Xe, Ar and Kr) and Certain Gas Mixtures in Water from Cubic Equations of State
AU - Rezania, P.
AU - Ranjbar, V.
AU - Nasrifar, K.
N1 - Publisher Copyright:
© 2021, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.
PY - 2021/10
Y1 - 2021/10
N2 - Using Henry’s law constant, we applied a previously developed approach to the Peng–Robinson (PR) and Soave–Redlich–Kwong (SRK) equations of state in deriving formulas for the binary interaction parameters of van der Waals mixing rules. The formulas are solely temperature dependent and require the Henry’s law constant of a gas in water in addition to the critical temperatures, critical pressures and acentric factors of the gas and water. The method was successfully used to predict the solubility of methane, ethane, propane, hydrogen sulfide, carbon dioxide, argon, krypton, xenon and nitrogen in water for wide ranges of temperature and pressure. Among the equations of state, PR was found to have the best performance with average absolute deviation of 5.2%. In addition, PR was employed to predict the solubility of gas mixtures in water, including methane + ethane, methane + n-butane and methane + ethane + n-butane at pressures up to 100 MPa. The accuracy of predictions was found to be comparable to those of the solubilities of pure gases in water.
AB - Using Henry’s law constant, we applied a previously developed approach to the Peng–Robinson (PR) and Soave–Redlich–Kwong (SRK) equations of state in deriving formulas for the binary interaction parameters of van der Waals mixing rules. The formulas are solely temperature dependent and require the Henry’s law constant of a gas in water in addition to the critical temperatures, critical pressures and acentric factors of the gas and water. The method was successfully used to predict the solubility of methane, ethane, propane, hydrogen sulfide, carbon dioxide, argon, krypton, xenon and nitrogen in water for wide ranges of temperature and pressure. Among the equations of state, PR was found to have the best performance with average absolute deviation of 5.2%. In addition, PR was employed to predict the solubility of gas mixtures in water, including methane + ethane, methane + n-butane and methane + ethane + n-butane at pressures up to 100 MPa. The accuracy of predictions was found to be comparable to those of the solubilities of pure gases in water.
KW - Equation of state
KW - Gas
KW - Henry's law
KW - Prediction
KW - Solubility
KW - Water
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U2 - 10.1007/s10953-021-01110-6
DO - 10.1007/s10953-021-01110-6
M3 - Article
AN - SCOPUS:85112351427
SN - 0095-9782
VL - 50
SP - 1169
EP - 1188
JO - Journal of Solution Chemistry
JF - Journal of Solution Chemistry
IS - 9-10
ER -