A New Continuous Method for Performing Rapid Phase Equilibrium Measurements on Binary Mixtures Containing CO(2) or H(2)O at High Pressures and Temperatures

作者：Novitskiy Alexander A; Perez Eduardo; Wu Weize; Ke Jie; Poliakoff Martyn^*

来源：Journal of Chemical and Engineering Data, 2009, 54(5): 1580-1584.

DOI：10.1021/je800923q

Apart from paying a deserved tribute to Professor Schneider, a new synthetic dynamic method for rapid determination of phase boundaries at high pressures and temperatures is presented. This device is based on the change in the Flame Ionization Detector signal given by a small amount of sample taken by a capillary fiber from an equilibrium cell through which a mixture of known composition is continuously flowing. To validate the method, the phase boundaries for the system acetone CO(2) are measured at (0.2 and 0.7) acetone mole fraction and at (350 to 380) K. We also measured the phase boundaries for the system ethanol H(2)O at compositions ranging from (0.05 to 0.4) ethanol mole fraction and temperatures up to 600 K. The results agree well with literature data, showing the feasibility of this method to measure the phase behavior of binary mixtures containing CO(2) and H(2)O at extreme conditions.

• 出版日期2009-5
• 单位北京化工大学