ABSTRACT

We now look at a highly nonideal VLE system in which the components have such positive deviations from ideality (large repulsion) that two liquid phases can occur. A decanter is used instead of a reflux drum, and there are two distillate products from the two liquid phases (organic and aqueous). The nonidealny requires that we use a VLE relationship in the column and a LLE (liquid-liquid equilibrium) relationship in the decanter.