OLI Engine, the world’s first and only rigorous predictive aqueous model is based on the combined work of Helgeson, Pitzer, Zemaitis, Bromley, Meisner, and OLI scientists, and a comprehensive databank that has taken over 25 years to develop.

The OLI Engine has now been expanded to include Mixed Solvent
Electrolyte systems. This proprietary model, the first and only one of its kind, will allow a whole new dimension of chemical process simulation for industry. The new model, by combining the best aqueous and non-aqueous (i.e., UNIQUAC) models, provides for the comprehensive thermo-physical properties engine for systems that exist beyond the limits of the aqueous models. Most notably, these include very high ionic strength solutions, and solutions containing 2 electrolyte solvents (e.g., water and ethanol).