Measurements and thermodynamic modeling of vapor-liquid equilibria in ethane-water systems from 274.26 to 343.08 K

被引:53
|
作者
Mohammadi, AH
Chapoy, A
Tohidi, B
Richon, D
机构
[1] Ecole Natl Super Mines, Ctr Energet, TEP, F-77305 Fontainebleau, France
[2] Heriot Watt Univ, Inst Petr Engn, Ctr Gas Hydrate Res, Edinburgh EH14 4AS, Midlothian, Scotland
关键词
D O I
10.1021/ie049747e
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
In this paper, new experimental data on the solubility of gaseous ethane in water are reported in the 274.26-343.08 K temperature range for pressures up to 4.952 MPa. A static-analytic apparatus, taking advantage of a pneumatic capillary sampler, is used for fluid sampling. The Valderrama modification of the Patel-Teja equation of state, combined with non-density-dependent mixing rules, is used for modeling the vapor-liquid equilibrium. The new solubility data generated in this work are used for tuning of the binary interaction parameters between ethane and water. Then, these data are compared with some literature data and the results of the thermodynamic model. To further evaluate the performance of the model, a comparison is made between the predicted water content data and some experimental data in the literature. These comparisons show the reliability of the techniques and model presented in this work.
引用
收藏
页码:5418 / 5424
页数:7
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