Relation of liquid-liquid equilibrium behavior at low temperatures to vapor-liquid equilibria behavior at high temperatures and elevated pressures

The basic hypothesis set forth in this study is that the high pressure K-value behavior in both the methane-toluene system, the natural gas-crude oil system, and the simulated natural gas-heavy absorber oil systems at high pressures have a common basis: the formulation of multiple phases at some lower temperatures with the behavior persisting to much higher temperatures. While the samples on which the K-values were measured in the late 1930's and early 1940's have long been discarded, an equation of state for mixtures capable of describing the experimental K-values for such systems over the entire range of the experimental data yielding reasonable results outside of the experimental range of the data was used to test this hypothesis. The ultimate proof of the hypothesis must be based upon laboratory experiments on similar complex mixtures. 14 references.