Imperial College London
Portrait Picture

Prof. J. P. Martin Trusler

Faculty of Engineering, Department of Chemical Engineering

Professor of Thermophysics
 
 
 
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Contact

 

+44 (0)20 7594 5592m.trusler Website

 
 
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Assistant

 

Miss Jessica Baldock +44 (0)20 7594 5699

 
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Location

 

409ACE ExtensionSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Lv:2020:10.1016/j.fluid.2020.112760,
author = {Lv, P and Stevar, MSP and Trusler, JPM},
doi = {10.1016/j.fluid.2020.112760},
journal = {Fluid Phase Equilibria},
pages = {1--13},
title = {Interfacial tensions in the (CH4 + CO2 + H2O) system under two- and three-phase conditions},
url = {http://dx.doi.org/10.1016/j.fluid.2020.112760},
volume = {522},
year = {2020}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Interfacial properties of the (CH4 + CO2 + H2O) system are of great importance in many geotechnical engineering applications. In this study, we report the first experimental measurements of the interfacial tensions in the (CH4 + CO2 + H2O) system under both three-phase (VLLE) and biphasic conditions. The measurements were made by the pendant drop method. The compositions of the coexisting phases were obtained from a previous study of the phase behavior and the phase densities were then calculated from an equation of state. IFTs along five isotherms in the VLLE region and along six isotherms in biphasic region are reported. In the VLLE region, the IFT between the water-rich liquid and the gas phase varied between (33 and 39) mN·m−1, with a sharp increase as the pressure increased along an isotherm towards the upper critical end point. In the same region, the IFT between the water-rich and CO2-rich liquids varied between (30 and 33) mN·m−1. The IFT between the gas phase and the CO2-rich liquid phase was too small to measure accurately but an approximate value was obtained which is consistent with Antonov's equality. In the biphasic region, measurements were made at temperatures up to 423K and at pressures up to 30MPa. As observed in other water-gas systems, the IFT declines monotonically along isotherms with increasing pressure and decreases with increasing temperature at constant pressure.
AU  - Lv,P
AU  - Stevar,MSP
AU  - Trusler,JPM
DO  - 10.1016/j.fluid.2020.112760
EP  - 13
PY  - 2020///
SN  - 0378-3812
SP  - 1
TI  - Interfacial tensions in the (CH4 + CO2 + H2O) system under two- and three-phase conditions
T2  - Fluid Phase Equilibria
UR  - http://dx.doi.org/10.1016/j.fluid.2020.112760
UR  - https://www.sciencedirect.com/science/article/pii/S0378381220303083?via%3Dihub
UR  - http://hdl.handle.net/10044/1/81023
VL  - 522
ER  -
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