New industrial and environmental application of chemical thermodynamics to the development of the chemical processes with multiphase and multicomponent systems

The main objective of our research is measurements, correlation and prediction of thermodynamic and equilibrium properties of pure fluids and mixtures. This research will contribute to the fundamental understanding of the properties of solutions and receiving the basic information required in new processes and products design, or improving of the conventional chemical processes. Experiments will be focused on the measurements of: (i) nonelectrolyte system properties (at atmospheric and high pressure)–density, viscosity, refractive index, phase equilibria (vapor-liquid, liquid-liquid and solid-liquid), and (ii) electrolyte systems properties-osmotic coefficients and electrolytes solubility. Special attention will be given to the systems selection, in order to perform investigations with the industrially and environmentally attractive systems: environmentally friendly solvents (CO2) ionic liquids, polymer solutions, solvents perceived as a good pollutions removal etc. For example, processes that have to be provided with the above mentioned thermodynamic properties are those with supercritical CO2 coupled with the different cosolvents (e.g. processing of the nanomaterial and products in pharmaceutical industry), bioresource conversion into the engine fuel etc. Experiments will be coupled with the correlation and prediction of the properties of pure substances and their mixtures. The more efficient equipment design will be performed based on the experiments and process modeling.