Experimental and Mathematical Modelling of Factors Influencing Carbon Dioxide Absorption into the Aqueous Solution of Monoethanolamine and 1-butyl-3-methylimidazolium Dibutylphosphate Using Response Surface Methodology (RSM)

This paper investigated the solubility of carbon dioxide (CO2 ) in an aqueous solution of monoethanolamine (MEA) and 1-butyl-3-methylimidazolium dibutylphosphate ((BMIM)(DBP)) ionic liquid (IL) hybrid solvents. Aqueous solutions of MEA-(BMIM)(DBP) hybrid solvents containing different concentrations...

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Main Authors: Azhar, F.N.A., Taha, M.F., Ghani, S.M.M., Ruslan, M.S.H., Yunus, N.M.M.
Format: Article
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.32375 /
Published: MDPI 2022
Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85126442497&doi=10.3390%2fmolecules27061779&partnerID=40&md5=3968e170369f2b248c1f734325ddd959
http://eprints.utp.edu.my/32375/
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spelling utp-eprints.323752022-03-29T01:10:05Z Experimental and Mathematical Modelling of Factors Influencing Carbon Dioxide Absorption into the Aqueous Solution of Monoethanolamine and 1-butyl-3-methylimidazolium Dibutylphosphate Using Response Surface Methodology (RSM) Azhar, F.N.A. Taha, M.F. Ghani, S.M.M. Ruslan, M.S.H. Yunus, N.M.M. This paper investigated the solubility of carbon dioxide (CO2 ) in an aqueous solution of monoethanolamine (MEA) and 1-butyl-3-methylimidazolium dibutylphosphate ((BMIM)(DBP)) ionic liquid (IL) hybrid solvents. Aqueous solutions of MEA-(BMIM)(DBP) hybrid solvents containing different concentrations of (BMIM)(DBP) were prepared to exploit the amine�s reactive nature, combined with the IL�s non-volatile nature for CO2 absorption. Response surface methodology (RSM) based on central composite design (CCD) was used to design the CO2 solubility experiments and to investigate the effects of three independent factors on the solubility of CO2 in the aqueous MEA(BMIM)(DBP) hybrid solvent. The three independent factors were the concentration of (BMIM)(DBP) (0�20 wt.), temperature (30�C�60�C) and pressure of CO2 (2�30 bar). The experimental data were fitted to a quadratic model with a coefficient of determination (R2 ) value of 0.9791. The accuracy of the developed model was confirmed through additional experiments where the experimental values were found to be within the 95 confidence interval. From the RSM-generated model, the optimum conditions for CO2 absorption in aqueous 30 wt MEA-(BMIM)(DBP) were 20 wt of (BMIM)(DBP), a temperature of 41.1�C and a pressure of 30 bar. © 2022 by the authors. Licensee MDPI, Basel, Switzerland. MDPI 2022 Article NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85126442497&doi=10.3390%2fmolecules27061779&partnerID=40&md5=3968e170369f2b248c1f734325ddd959 Azhar, F.N.A. and Taha, M.F. and Ghani, S.M.M. and Ruslan, M.S.H. and Yunus, N.M.M. (2022) Experimental and Mathematical Modelling of Factors Influencing Carbon Dioxide Absorption into the Aqueous Solution of Monoethanolamine and 1-butyl-3-methylimidazolium Dibutylphosphate Using Response Surface Methodology (RSM). Molecules, 27 (6). http://eprints.utp.edu.my/32375/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
description This paper investigated the solubility of carbon dioxide (CO2 ) in an aqueous solution of monoethanolamine (MEA) and 1-butyl-3-methylimidazolium dibutylphosphate ((BMIM)(DBP)) ionic liquid (IL) hybrid solvents. Aqueous solutions of MEA-(BMIM)(DBP) hybrid solvents containing different concentrations of (BMIM)(DBP) were prepared to exploit the amine�s reactive nature, combined with the IL�s non-volatile nature for CO2 absorption. Response surface methodology (RSM) based on central composite design (CCD) was used to design the CO2 solubility experiments and to investigate the effects of three independent factors on the solubility of CO2 in the aqueous MEA(BMIM)(DBP) hybrid solvent. The three independent factors were the concentration of (BMIM)(DBP) (0�20 wt.), temperature (30�C�60�C) and pressure of CO2 (2�30 bar). The experimental data were fitted to a quadratic model with a coefficient of determination (R2 ) value of 0.9791. The accuracy of the developed model was confirmed through additional experiments where the experimental values were found to be within the 95 confidence interval. From the RSM-generated model, the optimum conditions for CO2 absorption in aqueous 30 wt MEA-(BMIM)(DBP) were 20 wt of (BMIM)(DBP), a temperature of 41.1�C and a pressure of 30 bar. © 2022 by the authors. Licensee MDPI, Basel, Switzerland.
format Article
author Azhar, F.N.A.
Taha, M.F.
Ghani, S.M.M.
Ruslan, M.S.H.
Yunus, N.M.M.
spellingShingle Azhar, F.N.A.
Taha, M.F.
Ghani, S.M.M.
Ruslan, M.S.H.
Yunus, N.M.M.
Experimental and Mathematical Modelling of Factors Influencing Carbon Dioxide Absorption into the Aqueous Solution of Monoethanolamine and 1-butyl-3-methylimidazolium Dibutylphosphate Using Response Surface Methodology (RSM)
author_sort Azhar, F.N.A.
title Experimental and Mathematical Modelling of Factors Influencing Carbon Dioxide Absorption into the Aqueous Solution of Monoethanolamine and 1-butyl-3-methylimidazolium Dibutylphosphate Using Response Surface Methodology (RSM)
title_short Experimental and Mathematical Modelling of Factors Influencing Carbon Dioxide Absorption into the Aqueous Solution of Monoethanolamine and 1-butyl-3-methylimidazolium Dibutylphosphate Using Response Surface Methodology (RSM)
title_full Experimental and Mathematical Modelling of Factors Influencing Carbon Dioxide Absorption into the Aqueous Solution of Monoethanolamine and 1-butyl-3-methylimidazolium Dibutylphosphate Using Response Surface Methodology (RSM)
title_fullStr Experimental and Mathematical Modelling of Factors Influencing Carbon Dioxide Absorption into the Aqueous Solution of Monoethanolamine and 1-butyl-3-methylimidazolium Dibutylphosphate Using Response Surface Methodology (RSM)
title_full_unstemmed Experimental and Mathematical Modelling of Factors Influencing Carbon Dioxide Absorption into the Aqueous Solution of Monoethanolamine and 1-butyl-3-methylimidazolium Dibutylphosphate Using Response Surface Methodology (RSM)
title_sort experimental and mathematical modelling of factors influencing carbon dioxide absorption into the aqueous solution of monoethanolamine and 1-butyl-3-methylimidazolium dibutylphosphate using response surface methodology (rsm)
publisher MDPI
publishDate 2022
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85126442497&doi=10.3390%2fmolecules27061779&partnerID=40&md5=3968e170369f2b248c1f734325ddd959
http://eprints.utp.edu.my/32375/
_version_ 1741197724943908864
score 11.62408

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