关键词: critical property;ternary mixture;benzene;ethylbenzene;ethylene

Abstract: Critical temperature (Tc) and critical pressure (pc) of the ternary mixture of ethylene +
benzene + ethylbenzene (the mole ratio of ethylbenzene to benzene was fixed at 0.95:0.05)
were measured by using a highpressure view cell with direct visual observation. The
interaction coefficients obtained from the critical properties of the relevant binary
systems were used to predict the critical properties (Tc, pc) of the ternary mixture. The
agreement between the prediction and experiments is satisfactory.

Key words: critical property, ternary mixture, benzene, ethylbenzene, ethylene