Separation of azeotropic mixtures using protic ionic liquids as extraction solvents
| Autor: | Ana B. Pereiro, Eliseo Amado-González, Julio E. Sosa, João M. M. Araújo |
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| Přispěvatelé: | LAQV@REQUIMTE, DQ - Departamento de Química |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
02 engineering and technology 010402 general chemistry 01 natural sciences Azeotropic mixtures chemistry.chemical_compound Non-random two-liquid model Materials Chemistry Physical and Theoretical Chemistry Spectroscopy Eutectic system Extraction processes Heptane Extraction (chemistry) Liquid-liquid equilibria 021001 nanoscience & nanotechnology Condensed Matter Physics Atomic and Molecular Physics and Optics 0104 chemical sciences Electronic Optical and Magnetic Materials Solvent Hexane Protic ionic liquids Chemical engineering chemistry Ionic liquid 0210 nano-technology Ternary operation |
| Zdroj: | Repositório Científico de Acesso Aberto de Portugal Repositório Científico de Acesso Aberto de Portugal (RCAAP) instacron:RCAAP |
| Popis: | IF/00190/2014; IF/00210/2014; PTDC/EQU-EQU/29737/2017; PTDC/QEQ-FTT/3289/2014; IF/00210/2014/CP1244/CT0003; UID/QUI/50006/2019; POCI-01-0145-FEDER-007265; University of Pamplona, Internal Project 2-2017. The aim of this work is to evaluate the separation of hydrocarbons (hexane and heptane) from their azeotropic mixtures with ethanol using protic ionic liquid (PIL) as extraction solvents. With this goal in mind, PILs were synthesized and their thermal and physical characterization were carried out. Experimental determination of the phase equilibrium for the ternary systems hydrocarbons + ethanol + PIL at 298.15 K and 101.2 kPa were also carried out in order to evaluate the feasibility of this application. The solute distribution ratio and the selectivity were also determined to compare the solvent capacity of these PILs. The NRTL equation was used to correlate the experimental data. Furthermore, this paper provides a comparison of the solvent capacity of these PILs with different extraction solvents (ionic liquids (ILs), ILs mixtures and deep eutectic solvents) available in the literature. Then, a critical review for the separation of these azeotropic mixtures was carried out using the extraction processes data obtained through the simulation using a conventional software. preprint published |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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