Experimental measurement and thermodynamic modeling of the solubility of carbon dioxide in aqueous blends of monoethanolamine and diethanolamine
In this study, the solubilities of carbon dioxide in aqueous mixtures of monoethanolamine (MEA) and diethanolamine (DEA) were determined using a high pressure vapor-liquid equilibrium apparatus. The carbon dioxide loadings (mole of CO2/mole of amine mixture) were reported for a wide range of tempera...
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| Main Authors: | , , |
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| 格式: | Article |
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American Institute of Physics Inc.
2017
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| 在線閱讀: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85038356705&doi=10.1063%2f1.5010545&partnerID=40&md5=e7e8d9d06c904c374a51860f3251cc19 http://eprints.utp.edu.my/19886/ |
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| 機構: | Universiti Teknologi Petronas |
| 總結: | In this study, the solubilities of carbon dioxide in aqueous mixtures of monoethanolamine (MEA) and diethanolamine (DEA) were determined using a high pressure vapor-liquid equilibrium apparatus. The carbon dioxide loadings (mole of CO2/mole of amine mixture) were reported for a wide range of temperature (303.15, 323.15, 343.15 K) and pressure (100 - 4100 kPa). The carbon dioxide solubility shows an increase with increase in pressure and amine concentration and a decrease with increase in temperature in the aqueous blends of MEA and DEA. At carbon dioxide loadings above 1.0, the carbon dioxide solubility becomes a weak function of pressure and follows the general trend of carbon dioxide solubility in aqueous alkanolamines. The new experimental data points determined in this study were correlated by using a recently developed, enhanced Kent-Eisenberg model. An average absolute relative error of 9.4 was observed between the model results and experimental data, indicating good correlative capability of the thermodynamic model. © 2017 Author(s). |
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