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Grant number: 18/03739-0
Support type:Regular Research Grants
Duration: April 01, 2019 - March 31, 2021
Field of knowledge:Engineering - Chemical Engineering - Chemical Technology
Principal Investigator:Pedro Felipe Arce Castillo
Grantee:Pedro Felipe Arce Castillo
Home Institution: Escola de Engenharia de Lorena (EEL). Universidade de São Paulo (USP). Lorena , SP, Brazil
Assoc. researchers:Amilton Martins dos Santos ; Jose Omar Valderrama Mendez ; Lúcio Cardozo Filho


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)

Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
FAVARETO, ROGERIO; CARVALHO DE ARAUJO, PAULO CARDOZO; BEZERRA, ISAAC DIAS; ZANETTE, ANDREIA FATIMA; ARCE, PEDRO FELIPE; FERREIRA-PINTO, LEANDRO; CARDOZO-FILHO, LUCIO. Experimental data and thermodynamics modeling (PC-SAFT EoS) of the [CO2 + chloroform plus PHBV] system at high pressures. JOURNAL OF SUPERCRITICAL FLUIDS, v. 170, APR 2021. Web of Science Citations: 0.
ROBLES, PEDRO A.; LOURENCO, I, NATALIA; IGARASHI, EDSON M. S.; SOUSA, MARIVONE N.; ARCE, PEDRO F. Thermodynamic Behavior of the Phase Equilibrium of Ethyl Acetate plus Ethanol plus Water Systems at Atmospheric Pressure: Experiment and Modeling. JOURNAL OF CHEMICAL AND ENGINEERING DATA, v. 65, n. 4, p. 1402-1410, APR 2020. Web of Science Citations: 0.
FERREIRA-PINTO, LEANDRO; CARVALHO DE ARAUJO, PAULO CARDOZO; ARANDA SALDANA, MARLENY DORIS; ARCE, PEDRO FELIPE; CARDOZO-FILHO, LUCIO. Experimental Data and Thermodynamics Modeling (PC-SAFT EoS) of the [CO2 + Acetone plus Pluronic F-127] System at High Pressures. JOURNAL OF CHEMICAL AND ENGINEERING DATA, v. 64, n. 5, SI, p. 2186-2192, MAY 2019. Web of Science Citations: 1.

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