Author, as appears in the article.: Demirbek, Merve Gozdenur; Reartes, Sabrina Belen Rodriguez; Llovell, Felix
Department: Enginyeria Química
URV's Author/s: Demirbek, Merve Gozdenur / Llovell Ferret, Fèlix Lluís
Keywords: Directional attractive forces Equation-of-state Equilibri Fluorinated deep eutectic solvents Greenhouse gases Hydrofluorocarbons Ionic liquids Mixtures Phase-behavior Selectivit Selectivity Soft-saft Soft-saft equation Solubility Vapor-liquid
Abstract: The potential to decrease the negative environmental impact of greenhouse gases in terms of global warming potential (GWP) is a current challenge. Apart from CO 2 , fluorinated greenhouse gases (F-gases), which are human-made chemicals used in refrigeration and other industrial applications, have a huge environmental impact due to their high GWPs. In this regard, the design of units to capture and recover these gases would contribute to their reuse, avoiding the negative impact of their final emission or incineration. Fluorinated Deep Eutectic Solvents (FDESs) have been considered as promising solvents for the absorption and the selective separation of F-gases. However, the complex and expensive experimental labour to fully characterize FDESs delays its study and development. In this work, a computational approach is applied to develop accurate thermodynamic models of the gas solubility of several F-refrigerants in DESs. The molecular-based equation of state (EoS) soft-SAFT is used to assess the absorption of three F-gases (1,1,1,2-tetrafluoroethane (R-134a), difluoromethane (R-32), and pentafluoroethane (R-125)) at different temperatures in five DESs derived from fluorinated salts and perfluorinated acids. New molecular models are developed through the soft-SAFT approach for FDESs in good agreement with experimental data, and the solubility of F-gases is also calculated at varying temperatures with high accuracy. Then, an in-depth analysis of the characteristics of the refrigerants, and of the FDESs affecting the F-gases absorption is performed, and the enthalpy and entropy of absorption and the selectivity are calculated. It has been encountered that the best FDESs for each particular F-gas separation can be obtained by modifying the composition of DES and the operating temperature. Finally, an assessment based on the selectivity obtained from the soft-SAFT model is carried out to choose the most adequate solvent to separate the studied Fgases.
Thematic Areas: Astronomia / física Biodiversidade Biotecnología Chemical engineering (all) Chemical engineering (miscellaneous) Chemistry, physical Ciência de alimentos Ciências agrárias i Ciências ambientais Ciências biológicas i Ciências biológicas ii Engenharias i Engenharias ii Engenharias iii Engenharias iv Engineering, chemical Farmacia General chemical engineering General physics and astronomy Interdisciplinar Materiais Medicina i Medicina veterinaria Physical and theoretical chemistry Physics and astronomy (all) Physics and astronomy (miscellaneous) Química Thermodynamics
licence for use: https://creativecommons.org/licenses/by/3.0/es/
Author's mail: felix.llovell@urv.cat mervegozdenur.demirbek@urv.cat mervegozdenur.demirbek@urv.cat
Author identifier: 0000-0001-7109-6810 0000-0001-6500-4465 0000-0001-6500-4465
Record's date: 2024-10-26
Papper version: info:eu-repo/semantics/publishedVersion
Papper original source: Fluid Phase Equilibria. 581 114077-
APA: Demirbek, Merve Gozdenur; Reartes, Sabrina Belen Rodriguez; Llovell, Felix (2024). Thermodynamic Analysis of the Absorption of Common Refrigerants in Fluorinated Deep Eutectic Solvents. Fluid Phase Equilibria, 581(), 114077-. DOI: 10.1016/j.fluid.2024.114077
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Entity: Universitat Rovira i Virgili
Journal publication year: 2024
Publication Type: Journal Publications
Repositori URV