شماره ركورد كنفرانس :
5041
عنوان مقاله :
Thermodynamic Modelling of Carbon Dioxide Hydrate Formation in the Presence of Cyclopentane and Tetrahydrofuran
Author/Authors :
M. Mohammadifard Department of Chemical - Petroleum and Gas Engineering - Shiraz University of Technology, Shiraz, Iran , J. Javanmardi Department of Chemical - Petroleum and Gas Engineering - Shiraz University of Technology, Shiraz, Iran , K. Nasrifar Department of Chemical - Petroleum and Gas Engineering - Shiraz University of Technology, Shiraz, Iran
كليدواژه :
Promoters , Tetrahydrofuran , CPA , Cyclopentane , Three-phase flash
عنوان كنفرانس :
The 10th International Chemical Engineering Congress & Exhibition (IChEC 2018)
چكيده فارسي :
فاقد چكيده فارسي
چكيده لاتين :
The main problem of using hydrates as a tool for hydrocarbon processing is their low rate of production. To alleviate this problem, addition of promoters was suggested by many researchers. Promoters can also increase the volume of gas trapped in the hydrate lattice, improve the speed of its formation and change the thermodynamic condition for hydrate formation. In fact hydrates can be formed at higher temperatures and lower pressures. In this study, the hydrate formation conditions for gas mixtures of carbon dioxide in the presence of cyclopentane and tetrahydrofuran were predicted. A thermodynamic model based on the Cubic-Plus-Association (CPA) equation of state was applied to perform the vapor–liquid–liquid (V–LHC–LW) flash calculation and the van der Waals-Platteeuw hydrate model was used to characterize hydrate phase. A good agreement was found between the predicted and experimental data in the presence of tetrahydrofuran and cyclopentane. The average absolute deviation between the experimental and predicted data was found to be 0.3 K.
