Vapor−Liquid Equilibria of the Fluoroethane (R161) + 1,1,1,2-Tetrafluoroethane (R134a) System at Various Temperatures from (253.15 to 292.92) K

详细信息    查看全文

• 作者：Xueqiang Dong ; Maoqiong Gong ; Yu Zhang ; Jianfeng Wu
• 刊名：Journal of Chemical & Engineering Data
• 出版年：2008
• 出版时间：September 2008
• 年：2008
• 卷：53
• 期：9
• 页码：2193-2196
• 全文大小：110K
• 年卷期：v.53,no.9(September 2008)
• ISSN：1520-5134

文摘

The vapor−liquid equilibrium data for the binary system of fluoroethane (R161) + 1,1,1,2-tetrafluoroethane (R134a) at a temperature range from (253.15 to 292.92) K were measured with a recirculation method. The experimental results including temperatures, pressures, and compositions were correlated using the Peng−Robinson equation of state with two different mixing rules, the van der Waals mixing rule with a single binary interaction parameter, and the Huron−Vidal mixing rule in which the mole excess Gibbs free energy was obtained with the NRTL activity coefficient model. The calculated results agree well with the experimental data, and the largest deviations of the pressure and vapor mole fraction between the experimental data and the correlated results are 0.3642 % and 0.0073, respectively.