Ionic liquids is a group called of innovative fluid in Engineering and with a tremendous and unsuspected potential in separation processes. These ionic liquids are organic type of molten salts with melting points under 100 ° C and extremely small vapor pressures. In the chemical industry, it is necessary to develop alternative organic solvents due to social pressure and environmental legislation ever tighter. In this sense, the ionic liquids represent an excellent option and have been cataloged as the 'solvents of the future' or 'green solvents'. Moreover and from the thermodynamic point of view, not all the experimental data of vapor-liquid equilibrium of binary systems listed in the literature are correct. The thermodynamic consistency test is the most efficient method to determine the veracity or not of these data. In this research projet, in a first step, it is applied the thermodynamic consistency method for the experimental data of vapor-liquid equilibrium of several binary systems involving ionic liquids (imidazolium) and supercritical carbon dioxide, CO2, by using thermodynamic model (cubic equation of state) such as the Peng-Robinson equation using numerical methods and computational tools. The second step of this research project aims to perform the thermodynamic modeling of the liquid-vapor phase behavior only of binary systems, mentioned above, considered thermodynamically consistent.
News published in Agência FAPESP Newsletter about the scholarship: