Thermodynamic modeling of phase equilibrium for gas hydrate in single and mixed refrigerants by using sPC-SAFT equation of state
作者： Mostafa Abolala , Maryam Karamoddin , Farshad Varaminian
DOI: 10.1016/J.FLUID.2014.02.013
关键词: Fugacity 、 Phase equilibrium 、 Dissociation (chemistry) 、 Thermodynamics 、 Refrigerant 、 Clathrate hydrate 、 Chemistry 、 Hydrate dissociation 、 van der Waals force 、 Hydrate
摘要: Abstract This paper demonstrates the ability of simplified PC-SAFT equation state for prediction hydrate dissociation pressure refrigerants namely (CFC13, HCFC22, HFC23, HFC32, HFC125, HCFC141b, HFC134a, HFC152a, HFC143a and R744) their mixtures at different temperatures concentrations. The presented model is based on water chemical potential difference in liquid phases. Van der Waals Platteeuw was also applied to illustrate phase. Perturbed-Chain Statistical Associating Fluid Theory (sPC-SAFT) used determine fugacity each component vapor Moreover, temperature dependent binary interaction parameters (kij) were adjusted, taking advantage well-described phase equilibria. Kihara generated conditions single use mixture gas conditions. agreement between experimental predicted acceptable model; average absolute deviation (0.06–3.80) systems (1.90–4.99) mixed systems.
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