TY - JOUR
T1 - Use of Gas Hydrate with Propanone as the Promoter for Separation of Gas Mixtures Methane + Ethane
AU - Jokar, Soheila
AU - Javanmardi, Jafar
AU - Nasrifar, Khashayar
N1 - Publisher Copyright:
© 2019 American Chemical Society.
PY - 2019/6/25
Y1 - 2019/6/25
N2 - In this article, the gas hydrate technique with propanone as the promoter was employed to separate methane + ethane gas mixtures. Experiments were performed in two different aqueous propanone concentrations, that is, 1.5 and 6 mol %. In addition, using a thermodynamic model, the compositions of gas mixtures in contact with hydrate phases were predicted. For this purpose, the solid solution theory of van der Waals and Platteeuw (vdWP), the state equation of Peng and Robinson, and three activity coefficient models (NRTL, UNIQUAC, and van Laar) were used to characterize the hydrate phase, the vapor phase, and the aqueous phase, respectively. The results were compared well with the experimental data and good agreement was found. Furthermore, the methane + ethane hydrate dissociation conditions in the presence of propanone were experimentally measured and predicted using the thermodynamic model. The model satisfactorily predicted the experimental values.
AB - In this article, the gas hydrate technique with propanone as the promoter was employed to separate methane + ethane gas mixtures. Experiments were performed in two different aqueous propanone concentrations, that is, 1.5 and 6 mol %. In addition, using a thermodynamic model, the compositions of gas mixtures in contact with hydrate phases were predicted. For this purpose, the solid solution theory of van der Waals and Platteeuw (vdWP), the state equation of Peng and Robinson, and three activity coefficient models (NRTL, UNIQUAC, and van Laar) were used to characterize the hydrate phase, the vapor phase, and the aqueous phase, respectively. The results were compared well with the experimental data and good agreement was found. Furthermore, the methane + ethane hydrate dissociation conditions in the presence of propanone were experimentally measured and predicted using the thermodynamic model. The model satisfactorily predicted the experimental values.
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U2 - 10.1021/acs.jced.9b00165
DO - 10.1021/acs.jced.9b00165
M3 - Article
AN - SCOPUS:85073650697
SN - 0021-9568
VL - 64
SP - 3058
EP - 3067
JO - Journal of Chemical and Engineering Data
JF - Journal of Chemical and Engineering Data
IS - 7
ER -