Ternary mass transfer in liquid liquid e

Practical mass transfer processes often occur between unsaturated bulk phases and frequently involve the simultaneous transfer of more than a single constituent. The objective of this study was to measure directly the mass transfer coefficients for a ternary heterogeneous system in a situation in which simultaneous transfer occurred between unsaturated phases. Measurements were carried out using a modified Lewis cell to analyze the composition changes of corresponding phases in contact, covering the range from binary solvent pair configurations to areas near the critical point. The results indicate that the diffusive flux of each constituent not only depends on its own composition driving force but is also significantly influenced by the driving forces of the other diffusing species. Consequently, mass transfer relations must incorporate terms to account for these interactions. The findings demonstrate a strong correlation between the flux of a given constituent and the driving forces of the other species, underscoring the complexity of mass transfer in ternary heterogeneous systems.