Investigation of physical properties and carbon dioxide solubility in tetramethylammonium bromide and tetraethylammonium bromide ionic liquids solutions.

Autor: Rather SU; Department of Chemical and Materials Engineering, King Abdulaziz University, Jeddah, Saudi Arabia., Sulaimon AA; Department of Petroleum Engineering, Universiti Teknologi PETRONAS, Malaysia; Centre of Research in Ionic Liquids (CORIL), Institute of Contaminant Management (ICM), Universiti Teknologi PETRONAS, Malaysia. Electronic address: aliyu.adebayor@utp.edu.my., Shariff AM; Department of Chemical Engineering, Universiti Teknologi PETRONAS, Malaysia; CO(2) Research Centre (CO2RES), Institute of Contaminant Management (ICM), Universiti Teknologi PETRONAS, Malaysia., Qasim A; Centre of Research in Ionic Liquids (CORIL), Institute of Contaminant Management (ICM), Universiti Teknologi PETRONAS, Malaysia; Department of Chemical Engineering, Universiti Teknologi PETRONAS, Malaysia., Bamufleh HS; Department of Chemical and Materials Engineering, King Abdulaziz University, Jeddah, Saudi Arabia., Alhumade HA; Department of Chemical and Materials Engineering, King Abdulaziz University, Jeddah, Saudi Arabia., Saeed U; Department of Chemical and Materials Engineering, King Abdulaziz University, Jeddah, Saudi Arabia., Al-Alayah W; Department of Chemical and Materials Engineering, King Abdulaziz University, Jeddah, Saudi Arabia.
Jazyk: angličtina
Zdroj: Chemosphere [Chemosphere] 2023 Oct; Vol. 337, pp. 139290. Date of Electronic Publication: 2023 Jun 20.
DOI: 10.1016/j.chemosphere.2023.139290
Abstrakt: Carbon dioxide is a major greenhouse gas that is responsible for global warming and renders harmful effects on the atmosphere. The unconstrained release of CO 2 into the atmosphere should be prevented and various techniques have been developed in this regard to capture CO 2 using different solvents and other compounds. Ionic liquids are a suitable candidate to capture CO 2 due to their better solubility behaviour. In this work, two ionic liquids namely tetramethylammonium bromide (TMAB) and tetraethylammonium bromide (TEAB) are employed experimentally to capture CO 2 and investigate their solubility behaviour. The study is performed at the temperature values of 303 K, 313 K, and 323 K and the pressure values of 5, 10, 15, and 20 bar equivalent to 0.5, 1.0, 1.5, and 2.0 MPa respectively. The concentrations of both ionic liquid solutions are 2.5 wt%, 5.0 wt%, and 10.0 wt%. The solubility results are considered in terms of mol fraction which is the ratio of moles of CO 2 captured per moles of ionic liquid. The density and viscosity values are also determined for both compounds at respective conditions. COSMO-RS is used to generate the sigma profile, sigma surface, and Henry's constant of the ions involved in the study. CO 2 is found to be soluble in both ionic liquids, but TEAB showed better solubility behaviour as compared to TMAB. The solubility of CO 2 is found to be increasing with the increase in pressure while it decreases with the increase in temperature.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2023 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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