| Grant number: | 18/03739-0 |
| Support Opportunities: | Regular Research Grants |
| Start date: | April 01, 2019 |
| End date: | March 31, 2021 |
| Field of knowledge: | Engineering - Chemical Engineering - Chemical Technology |
| Principal Investigator: | Pedro Felipe Arce Castillo |
| Grantee: | Pedro Felipe Arce Castillo |
| Host Institution: | Escola de Engenharia de Lorena (EEL). Universidade de São Paulo (USP). Lorena , SP, Brazil |
| Associated researchers: | Amilton Martins dos Santos ; Jose Omar Valderrama Mendez ; Lúcio Cardozo Filho |
Abstract
The current necessity for more and better data on physical, physicochemical and thermodynamic properties of ionic liquids (ILs), for the development of many processes at supercritical conditions, where these fluids present extraordinary advantages, increase the interest for studying, analyzing and proposing thermodynamically based methods. These methods serve in order to determine properties such as density, critical properties, acentric factor, saturation pressure between others, which are of special interest to correlate and predict thermodynamic properties of phase equilibrium and their applications to the supercritical separation processes. The ILs are innovatory fluids in the engineering with a tremendous and unsuspected potential in the separation processes. These ILs are molten salts of organic type with melting points under 100ºC and extremely low vapor pressures. At present, in the chemical industry it is very necessary to develop alternative organic solvents to the current ones due to the social pressure and the more and more rigorous environmental legislations. In this sense, the ILs represent an excellent option and have been cataloged like the "solvents of the future". ILs became the perfect partners of the supercritical CO2 in many applications and most of the studies reported in the literature analyze the interactions between these two "green" solvents. This research project aims to focus on the specific physical, physicochemical and thermodynamic properties of the ILs (imidazolium) and the phase behavior, at high-pressures, of binary systems: IL (imidazolium) - supercritical CO2 in experimental study (construction of a laboratory unit), correlation, through the thermodynamic modeling by using equations of state and prediction, using mathematical models via artificial neural networks. (AU)
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