Description of the thermodynamic properties and fluid‐phase behavior of aqueous solutions of linear, branched, and cyclic amines

The SAFT-γ Mie group-contribution equation of state is used to represent the fluid-phase behavior aqueous solutions a variety linear, branched, and cyclic amines. New group interactions are developed in order model mixtures interest, including like unlike between alkyl primary, secondary, tertiary amine groups (NH2, NH, N), secondary (cNH, cN), methine-amine (cCHNH, cCHN) with water (H2O). group-interaction parameters estimated from appropriate experimental thermodynamic data for pure amines selected mixtures. By taking advantage nature method, one can describe molecules comprising those over broad ranges temperature, pressure, composition. A number studied branched aliphatic, Liquid–liquid equilibria (LLE) bounded by lower critical solution temperatures (LCSTs) have been reported experimentally reproduced here approach. main feature approach ability not only accurately employed parameter estimation, but also predict vapor–liquid, liquid–liquid, vapor–liquid–liquid equilibria, LCSTs same set parameters. Pure compound binary phase diagrams diverse types their assessed demonstrate features behavior.