TY - JOUR
T1 - Liquid Water-Hydrate-Vapor Equilibrium for Methane + Ethane Gas Mixtures
T2 - Application of Gas Hydrates for Separation
AU - Soltanimehr, Sheida
AU - Javanmardi, Jafar
AU - Nasrifar, Khashayar
N1 - Funding Information:
The authors wish to express their appreciation to Shiraz University of Technology for support of this work.
Publisher Copyright:
© 2017 American Chemical Society.
PY - 2017/7/13
Y1 - 2017/7/13
N2 - In this communication, liquid water-hydrate-vapor (Lw-H-V) phase diagrams for methane + ethane gas mixtures are predicted using van der Waals-Platteeuw solid solution theory. Experimental measurements were conducted and the results exhibited that methane was effectively separated from ethane by hydrate formation. To perform the experiments, methane + ethane gas mixtures were contacted to excess water at appropriate conditions. Once the hydrate phase was produced, the compositions in the gas and hydrate phases were measured meticulously and reported. Presented in this work, methane was enriched in the residual vapor phase, while ethane was enriched in the hydrate phase. The performed experiments justify the use of gas hydrate as a feasible method for separation. The model predictions of the pressure-composition diagram are also in good agreement with experimental results. (Figure Presented).
AB - In this communication, liquid water-hydrate-vapor (Lw-H-V) phase diagrams for methane + ethane gas mixtures are predicted using van der Waals-Platteeuw solid solution theory. Experimental measurements were conducted and the results exhibited that methane was effectively separated from ethane by hydrate formation. To perform the experiments, methane + ethane gas mixtures were contacted to excess water at appropriate conditions. Once the hydrate phase was produced, the compositions in the gas and hydrate phases were measured meticulously and reported. Presented in this work, methane was enriched in the residual vapor phase, while ethane was enriched in the hydrate phase. The performed experiments justify the use of gas hydrate as a feasible method for separation. The model predictions of the pressure-composition diagram are also in good agreement with experimental results. (Figure Presented).
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U2 - 10.1021/acs.jced.7b00232
DO - 10.1021/acs.jced.7b00232
M3 - Article
AN - SCOPUS:85024394847
SN - 0021-9568
VL - 62
SP - 2143
EP - 2148
JO - Journal of Chemical and Engineering Data
JF - Journal of Chemical and Engineering Data
IS - 7
ER -