The Henry Coefficient of CO2 in the MEA-CO2-H2O System

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avondale-bepress-to-dspace.facultyScience
avondale-bepress-to-dspace.licensehttp://creativecommons.org/licenses/by-nc-nd/4.0/
avondale-bepress-to-dspace.peer_review_statusPeer reviewed before publication
avondale-bepress.abstract<p>The Henry Coefficient of CO<sub>2</sub> is a fundamental property and crucial for the accurate simulation of the absorption and desorption of CO<sub>2</sub> in MEA solutions related to post combustion capture (PCC). The free CO<sub>2</sub> concentration in amine solutions is very small and is difficult to be measured since it reacts with the solution. The “N<sub>2</sub>O analogy” is traditionally applied to estimate the physical solubility of CO<sub>2</sub> based on the assumption that the two gases behave similarly in amine solutions. We propose a direct way to determine Henry Coefficient of CO<sub>2</sub> in MEA solutions as an alternative to N<sub>2</sub>O analogy. The method only requires vapor liquid equilibrium measurements of the MEA-CO<sub>2</sub>-H<sub>2</sub>O system. Based on the total MEA concentration, loading and known equilibrium constants the free CO<sub>2</sub> can be computed which allows the determination of the Henry Coefficient. A 6-parameter polynomial is used to approximate the Henry Coefficient as a function of the total MEA concentration and total CO<sub>2</sub> concentration at 40 <sup>o</sup>C.</p>
avondale-bepress.articleid1093
avondale-bepress.authorsLichun Li
avondale-bepress.authorsMarcel Maeder
avondale-bepress.authorsRobert Burns
avondale-bepress.authorsGraeme Puxty
avondale-bepress.authorsSarah Clifford
avondale-bepress.authorsHai Yu
avondale-bepress.context-key12530268
avondale-bepress.coverpage-urlhttps://research.avondale.edu.au/sci_math_papers/99
avondale-bepress.document-typeconference
avondale-bepress.field.author_faculty_disciplineScience
avondale-bepress.field.comments<p>Used by permission: the author(s).</p>
avondale-bepress.field.custom_citation<p>Li, L., Maeder, M., Burns, R., Puxty, G., Clifford, S., & Yu, H. (2017). The Henry Coefficient of CO2 in the MEA-CO2-H2O System. Proceedings of the 13th International Conference on Greenhouse Gas Control Technologies. <em>Energy Procedia, 114, </em>1841-1847. doi: 10.1016/j.egypro.2017.03.1313</p>
avondale-bepress.field.distribution_licensehttp://creativecommons.org/licenses/by-nc-nd/4.0/
avondale-bepress.field.doihttps://doi.org/10.1016/j.egypro.2017.03.1313
avondale-bepress.field.embargo_date2018-07-23T00:00:00Z
avondale-bepress.field.field_of_education01 Natural and Physical Sciences
avondale-bepress.field.for03 CHEMICAL SCIENCES
avondale-bepress.field.issn1876-6102
avondale-bepress.field.journalEnergy Procedia
avondale-bepress.field.page_numbers1841-1847
avondale-bepress.field.peer_reviewBefore publication
avondale-bepress.field.publication_date2017-07-01T00:00:00Z
avondale-bepress.field.source_fulltext_urlhttps://doi.org/10.1016/j.egypro.2017.03.1313
avondale-bepress.field.source_publication<p>This article was originally published as:</p> <p>Li, L., Maeder, M., Burns, R., Puxty, G., Clifford, S., & Yu, H. (2017). The Henry Coefficient of CO2 in the MEA-CO2-H2O System. Proceedings of the 13th International Conference on Greenhouse Gas Control Technologies. <em>Energy Procedia, 114, </em>1841-1847. doi:10.1016/j.egypro.2017.03.1313</p> <p>ISSN: 1876-6102</p>
avondale-bepress.field.staff_classificationContract
avondale-bepress.field.volume_number114
avondale-bepress.keywordsHenry Coefficient; CO2 absorption; VLE model; MEA solution
avondale-bepress.label99
avondale-bepress.publication-date2017-07-01T00:00:00Z
avondale-bepress.publication-titleScience and Mathematics Papers and Journal Articles
avondale-bepress.statepublished
avondale-bepress.submission-date2018-07-23T20:19:05Z
avondale-bepress.submission-pathsci_math_papers/99
avondale-bepress.titleThe Henry Coefficient of CO2 in the MEA-CO2-H2O System
avondale-bepress.typearticle
dc.contributor.authorYu, Hai
dc.contributor.authorClifford, Sarah
dc.contributor.authorPuxty, Graeme
dc.contributor.authorBurns, Robert
dc.contributor.authorMaeder, Marcel
dc.contributor.authorLi, Lichun
dc.date.accessioned2023-11-01T00:27:04Z
dc.date.available2023-11-01T00:27:04Z
dc.date.issued2017-07-01
dc.date.submitted2018-07-23T20:19:05Z
dc.description.abstract<p>The Henry Coefficient of CO<sub>2</sub> is a fundamental property and crucial for the accurate simulation of the absorption and desorption of CO<sub>2</sub> in MEA solutions related to post combustion capture (PCC). The free CO<sub>2</sub> concentration in amine solutions is very small and is difficult to be measured since it reacts with the solution. The “N<sub>2</sub>O analogy” is traditionally applied to estimate the physical solubility of CO<sub>2</sub> based on the assumption that the two gases behave similarly in amine solutions. We propose a direct way to determine Henry Coefficient of CO<sub>2</sub> in MEA solutions as an alternative to N<sub>2</sub>O analogy. The method only requires vapor liquid equilibrium measurements of the MEA-CO<sub>2</sub>-H<sub>2</sub>O system. Based on the total MEA concentration, loading and known equilibrium constants the free CO<sub>2</sub> can be computed which allows the determination of the Henry Coefficient. A 6-parameter polynomial is used to approximate the Henry Coefficient as a function of the total MEA concentration and total CO<sub>2</sub> concentration at 40 <sup>o</sup>C.</p>
dc.description.versionBefore publication
dc.identifier.citation<p>Li, L., Maeder, M., Burns, R., Puxty, G., Clifford, S., & Yu, H. (2017). The Henry Coefficient of CO2 in the MEA-CO2-H2O System. Proceedings of the 13th International Conference on Greenhouse Gas Control Technologies. <em>Energy Procedia, 114, </em>1841-1847. doi: 10.1016/j.egypro.2017.03.1313</p>
dc.identifier.doihttps://doi.org/10.1016/j.egypro.2017.03.1313
dc.identifier.issn1876-6102
dc.identifier.urihttps://research.avondale.edu.au/handle/123456789/12530268
dc.language.isoen_us
dc.provenance<p>This article was originally published as:</p> <p>Li, L., Maeder, M., Burns, R., Puxty, G., Clifford, S., & Yu, H. (2017). The Henry Coefficient of CO2 in the MEA-CO2-H2O System. Proceedings of the 13th International Conference on Greenhouse Gas Control Technologies. <em>Energy Procedia, 114, </em>1841-1847. doi:10.1016/j.egypro.2017.03.1313</p> <p>ISSN: 1876-6102</p>
dc.rights.licensehttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectHenry Coefficient; CO2 absorption; VLE model; MEA solution
dc.titleThe Henry Coefficient of CO2 in the MEA-CO2-H2O System
dc.typeConference Publication
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