Gas Solubility Using Deep Eutectic Solvents: Review and Analysis

Author(s)

Pelaquim, Fernanda Paludetto ^[1] ; Barbosa Neto, Antonio Marinho ^[2] ; Lucini Dalmolin, Irede Angela ^[3] ; da Costa, Mariana Conceicao ^[1]

Affiliation

^[1] Univ Campinas UNICAMP, Sch Chem Engn, BR-13083852 Campinas, SP - Brazil

^[2] State Univ Santa Catarina UDESC, Petr Engn Dept, BR-88336275 Balneario, SC - Brazil

^[3] Fed Technol Univ Parana UTFPR, Acad Dept Engn, BR-85601970 Francisco Beltrao, Parana - Brazil

• Document type: Review article
• Source: Industrial & Engineering Chemistry Research; v. 60, n. 24, p. 8607-8620, JUN 23 2021.
• Web of Science Citations: 0

Abstract

The increasing global levels of anthropogenic greenhouse gases (GHGs), especially CO2 emissions, have caused environmental problems that impact humanity and the ecosystems. Therefore, gas capture and storage are a feasible solution to this global issue. Some aqueous amine solutions, such as monoethanolamine (MEA), have been used to capture GHGs, but they are not environment friendly. Research on greener solvents for this task led to deep eutectic solvents (DESs) as a novel option. This review explores the applications of different DESs; compares the differences between gas solubility methodologies; and studies the interference of the DESs' molar ratio, the influence of HBA and HBD, and the differences between the solubility of some gases in these solvents. More than 40 DESs have been analyzed; however, some gaps need to be filled, such as data for gas solubility under higher pressures and thermodynamic modeling of experimental data. (AU)

• FAPESP's process: 14/21252-0 - Equilibrium and production processes of biofuels and bioproducts
• Grantee: Antonio José de Almeida Meirelles
• Support Opportunities: Research Projects - Thematic Grants