@article{Chow:2016:10.1016/j.fluid.2015.07.026,
author = {Chow, YTF and Eriksen, DK and Galindo, A and Haslam, AJ and Jackson, G and Maitland, GC and Trusler, JPM},
doi = {10.1016/j.fluid.2015.07.026},
journal = {Fluid Phase Equilibria},
pages = {159--176},
title = {Interfacial tensions of systems comprising water, carbon dioxide and diluent gases at high pressures: experimental measurements and modelling with SAFT-VR Mie and square-gradient theory},
url = {http://dx.doi.org/10.1016/j.fluid.2015.07.026},
volume = {407},
year = {2016}
}

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TY  - JOUR
AB  - Experimental interfacial tensions of the systems (H<inf>2</inf>O+CO<inf>2</inf>), (H<inf>2</inf>O+N<inf>2</inf>), (H<inf>2</inf>O+Ar), (H<inf>2</inf>O+CO<inf>2</inf> +N<inf>2</inf>) and (H<inf>2</inf>O+CO<inf>2</inf> +Ar) are compared with calculations based on the statistical associating fluid theory for variable range potentials of the Mie form (SAFT-VR Mie) in combination with the square-gradient theory (SGT). Comparisons are made at temperatures from (298 to 473)K and at pressures up to 60MPa. Experimental data for the systems (H<inf>2</inf>O+CO<inf>2</inf>), (H<inf>2</inf>O+N<inf>2</inf>) and (H<inf>2</inf>O+CO<inf>2</inf> +N<inf>2</inf>) are taken from the literature. For the (H<inf>2</inf>O+Ar) and (H<inf>2</inf>O+CO<inf>2</inf> +Ar) systems, we report new experimental interfacial-tension data at temperatures of (298.15-473.15)K and pressures from (2 to 50)MPa, measured by the pendant-drop method. The expanded uncertainties at 95% confidence are 0.05K for temperature, 70kPa for pressure, 0.016× γ for interfacial tension in the binary (Ar+H<inf>2</inf>O) system and 0.018× γ for interfacial tension in the ternary (CO<inf>2</inf> +Ar+H<inf>2</inf>O) system.The parameters in the SAFT-VR Mie equation of state are estimated entirely from phase-equilibrium data for the pure components and binary mixtures. For pure water, the SGT influence parameter is determined from vapour-liquid surface-tension data, as is common practice. Since the other components are supercritical over most or the entire temperature range under consideration, their pure-component influence parameters are regressed by comparison with the binary interfacial-tension data. A geometric-mean combining rule
AU  - Chow,YTF
AU  - Eriksen,DK
AU  - Galindo,A
AU  - Haslam,AJ
AU  - Jackson,G
AU  - Maitland,GC
AU  - Trusler,JPM
DO  - 10.1016/j.fluid.2015.07.026
EP  - 176
PY  - 2016///
SN  - 0378-3812
SP  - 159
TI  - Interfacial tensions of systems comprising water, carbon dioxide and diluent gases at high pressures: experimental measurements and modelling with SAFT-VR Mie and square-gradient theory
T2  - Fluid Phase Equilibria
UR  - http://dx.doi.org/10.1016/j.fluid.2015.07.026
UR  - https://www.sciencedirect.com/science/article/pii/S0378381215300418
UR  - http://hdl.handle.net/10044/1/26806
VL  - 407
ER  - 

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