Kinetic study of CO2 absorption in aqueous solutions of 2‐((2‐aminoethyl)amino)‐ethanol using a stirred cell reaction calorimeter.
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| Title: | Kinetic study of CO |
|---|---|
| Authors: | Mukherjee, Satyajit1 (AUTHOR), Samanta, Amar N.1 (AUTHOR) amar@che.iitkgp.ac.in |
| Source: | International Journal of Chemical Kinetics. Dec2019, Vol. 51 Issue 12, p943-957. 15p. |
| Subjects: | Aqueous solutions, Liquid mixtures, Ethanolamines, Gas-liquid interfaces, Binary mixtures, Amino group, Calorimeters |
| Abstract: | In the literature, aqueous 2‐((2‐aminoethyl)amino) ethanol (AEEA) is identified as a promising solvent for postcombustion CO2 capture. In this work, the kinetics of CO2 absorption in the aqueous AEEA, containing a primary and a secondary amino group, is studied over a wide temperature range of 303.15‐343.15 K and the amine concentration in the range of 0.47‐2.89 M using the fall‐in‐pressure technique in a stirred cell reaction calorimeter setup with a horizontal gas‐liquid interface. The overall rate constants for (AEEA + H2O + CO2) reaction system are estimated in the pseudo–first‐order reaction regime. The kinetic models based on zwitterion and the termolecular reaction mechanisms are used to predict kinetic rate constants. The experimental kinetic data are better correlated using the zwitterion mechanism (AAD 9.18%) than that of the termolecular mechanism (AAD 10.4%). The density, viscosity, and physical solubility of pure components and aqueous binary mixtures of AEEA are also measured at the similar temperature and concentration ranges of rate kinetics. Empirical models are proposed to predict pure component density and viscosity data with AAD of 0.02% and 7.17%, respectively. The Redlich‐Kister model, the Grunberg‐Nissan model, and the O'Connell's model are used to correlate experimental density, viscosity, and physical solubility data of the binary mixtures with AAD of 0.034%, 4.92%, and 6.5%, respectively. The reaction activation energy (Ea ∼ 32 kJ/mol) of the (AEEA + H2O + CO2) system is calculated from the Arrhenius power‐law model using the zwitterion mechanism, which indicates lower energy barrier than that of the reported value for monoethanolamine (∼44 kJ/mol) in the literature. [ABSTRACT FROM AUTHOR] |
| Copyright of International Journal of Chemical Kinetics is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
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| Header | DbId: egs DbLabel: Engineering Source An: 139189280 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Kinetic study of CO<subscript>2</subscript> absorption in aqueous solutions of 2‐((2‐aminoethyl)amino)‐ethanol using a stirred cell reaction calorimeter. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Mukherjee%2C+Satyajit%22">Mukherjee, Satyajit</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Samanta%2C+Amar+N%2E%22">Samanta, Amar N.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> amar@che.iitkgp.ac.in</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Chemical+Kinetics%22">International Journal of Chemical Kinetics</searchLink>. Dec2019, Vol. 51 Issue 12, p943-957. 15p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Aqueous+solutions%22">Aqueous solutions</searchLink><br /><searchLink fieldCode="DE" term="%22Liquid+mixtures%22">Liquid mixtures</searchLink><br /><searchLink fieldCode="DE" term="%22Ethanolamines%22">Ethanolamines</searchLink><br /><searchLink fieldCode="DE" term="%22Gas-liquid+interfaces%22">Gas-liquid interfaces</searchLink><br /><searchLink fieldCode="DE" term="%22Binary+mixtures%22">Binary mixtures</searchLink><br /><searchLink fieldCode="DE" term="%22Amino+group%22">Amino group</searchLink><br /><searchLink fieldCode="DE" term="%22Calorimeters%22">Calorimeters</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: In the literature, aqueous 2‐((2‐aminoethyl)amino) ethanol (AEEA) is identified as a promising solvent for postcombustion CO2 capture. In this work, the kinetics of CO2 absorption in the aqueous AEEA, containing a primary and a secondary amino group, is studied over a wide temperature range of 303.15‐343.15 K and the amine concentration in the range of 0.47‐2.89 M using the fall‐in‐pressure technique in a stirred cell reaction calorimeter setup with a horizontal gas‐liquid interface. The overall rate constants for (AEEA + H2O + CO2) reaction system are estimated in the pseudo–first‐order reaction regime. The kinetic models based on zwitterion and the termolecular reaction mechanisms are used to predict kinetic rate constants. The experimental kinetic data are better correlated using the zwitterion mechanism (AAD 9.18%) than that of the termolecular mechanism (AAD 10.4%). The density, viscosity, and physical solubility of pure components and aqueous binary mixtures of AEEA are also measured at the similar temperature and concentration ranges of rate kinetics. Empirical models are proposed to predict pure component density and viscosity data with AAD of 0.02% and 7.17%, respectively. The Redlich‐Kister model, the Grunberg‐Nissan model, and the O'Connell's model are used to correlate experimental density, viscosity, and physical solubility data of the binary mixtures with AAD of 0.034%, 4.92%, and 6.5%, respectively. The reaction activation energy (Ea ∼ 32 kJ/mol) of the (AEEA + H2O + CO2) system is calculated from the Arrhenius power‐law model using the zwitterion mechanism, which indicates lower energy barrier than that of the reported value for monoethanolamine (∼44 kJ/mol) in the literature. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of International Journal of Chemical Kinetics is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1002/kin.21322 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 15 StartPage: 943 Subjects: – SubjectFull: Aqueous solutions Type: general – SubjectFull: Liquid mixtures Type: general – SubjectFull: Ethanolamines Type: general – SubjectFull: Gas-liquid interfaces Type: general – SubjectFull: Binary mixtures Type: general – SubjectFull: Amino group Type: general – SubjectFull: Calorimeters Type: general Titles: – TitleFull: Kinetic study of CO2 absorption in aqueous solutions of 2‐((2‐aminoethyl)amino)‐ethanol using a stirred cell reaction calorimeter. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Mukherjee, Satyajit – PersonEntity: Name: NameFull: Samanta, Amar N. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 12 Text: Dec2019 Type: published Y: 2019 Identifiers: – Type: issn-print Value: 05388066 Numbering: – Type: volume Value: 51 – Type: issue Value: 12 Titles: – TitleFull: International Journal of Chemical Kinetics Type: main |
| ResultId | 1 |
