Measuring and Modeling the Solubility and Density for CO2鈥揟oluene and C2H6鈥揟oluene Systems

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• 作者：Mohsen Zirrahi ; Bahareh Azinfar ; Hassan Hassanzadeh ; Jalal Abedi
• 刊名：Journal of Chemical & Engineering Data
• 出版年：2015
• 出版时间：June 11, 2015
• 年：2015
• 卷：60
• 期：6
• 页码：1592-1599
• 全文大小：545K
• ISSN：1520-5134

文摘

An accurate thermodynamic model of CO₂/toluene and C₂H₆/toluene systems is required to improve the design of industrial processes including separation, supercritical extraction, and fine particle production. We present new sets of experimental solubility data for CO₂ (298.15 鈮?T 鈮?63.15 K and P 鈮?5.1 MPa) and C₂H₆ (294.15 鈮?T 鈮?63.15 K and P 鈮?3.65 MPa) in toluene as well as the corresponding liquid phase densities. The Peng鈥揜obinson equation of state/excess Gibbs free energy model (PR-EoS/G^E) is applied to represent the experimental data over a wide range of temperatures and pressures. Our results show acceptable agreement between the experimental and calculated solubility and density data. The presented experimental data and thermodynamic model will find applications in the design of separation, extraction, and fine particle production processes.