Property simulation of immiscible liquids
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Everyone: I want to simulate the condensation of a mixture of aniline and water in a 1:1 ratio from the gas phase to the liquid phase, as well as the properties at very low temperatures. What property methods should be used in Aspen, or how should this simulation be carried out?
The Aspen expert system can recommend a possible method. If the pressure is not high, one can choose NRTL based on intuition. I don’t understand your question: the properties of each flow stream in the vapor phase, condensate phase, and VLL three-phase regime?
The gas-phase mixture, after condensation, is further supercooled; thus the liquid phase is also a mixture, only one that is immiscible
It first passes through the condenser, then through the three-phase separator, where it is separated into vapor-liquid-liquid streams; thereafter, the two liquid phases (oil phase + water phase) are mixed together to examine the properties of the resulting mixture.
A temperature jump occurred during the calculation of condensation
When a vapor-liquid-liquid three-phase condition may exist, the condenser is set to vapor-liquid-liquid (VLL); otherwise, it generally switches over.