Prediction of Hydrate Dissociation Conditions for system of Tetrahydrofuran + Water
کد مقاله : 1056-PHYSCHEM20
نویسندگان:
1مریم رئیسی، جعفر جوانمردی *، 2فرزاد علوی، 1سید محمد جوکار
1دانشگاه صنعتی شیراز
2عضو هیأت علمی دانشکده مهندسی شیمی، نفت و گاز؛ دانشگاه صنعتی شیراز
چکیده مقاله:
Utilization of Tetrahydrofuran (THF) is a common way to moderate the hydrate formation conditions. In this work, attempts have been made to predict the dissociation conditions for system of THF + water using van der Waals-Platteeuw (vdW-P) solid solution theory. Only 50% of THF +water system with THF concentration in the mole fraction range lower than 6% are utilized to optimize the interaction parameters of Kihara potential for the guest THF molecules.
The phase boundaries for system of THF + water and then carbon dioxide + THF + water, methane + THF +water and nitrogen + THF +water in all available concentration ranges are predicted and compared with available literature experimental data. The results showed acceptable agreement between predicted and experimental data for the systems examined in this study. The Peng-Robinson equation of state was used for determining component fugacities in gas phase and UNIQUAC activity model for calculating activity in liquid phase.
کلیدواژه ها:
Hydrate; THF; van der Waals-Platteeuw model; Kihara potential parameters
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