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Heat of Absorption of Carbon Dioxide (CO2) in Monoethanolamine (MEA) and 2-(Aminoethyl)ethanolamine (AEEA) Solutions
Abstract
A method is proposed for measuring the enthalpy of absorption of CO 2 (Δ H abs ) that is differential in temperature and semi-differential in loading. A 2-L reaction calorimeter was used to measure the enthalpy of absorption of CO 2 with aqueous solutions of monoethanolamine (MEA) and (2-aminoethyl)ethanolamine (AEEA) over the temperature range of 40−120 °C. By feeding CO 2 in several steps and keeping the change in loading between each new equilibrium rather low (∼0.03−0.07 mol CO 2 /mol amine), it was possible to obtain values of Δ H abs that were semi-differential in loading. Experiments conducted at different temperature levels gave enthalpy values that were differential in temperature. Measured Δ H abs values were compared with integral values found in the literature and with differential values calculated from solubility measurements. The experimental results indicate that the use of the Gibbs−Helmholtz equation in an aggregate form does not necessarily give an accurate description of the Δ H abs values.
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Citations
Cited by
Carbon-Based Adsorbents for Postcombustion CO 2 Capture: A Critical Review
Creamer, A. E., & Gao, B. (2016) · Environmental Science & Technology · doi:10.1021/acs.est.6b00627 · Cited by 598
Aqueous amine solution characterization for post-combustion CO2 capture process
El Hadri, N., Quang, D. V., Goetheer, E. L. V., & Abu Zahra, M. R. M. (2017) · Applied Energy · doi:10.1016/j.apenergy.2016.03.043 · Cited by 486
Deep eutectic solvents as attractive media for CO2 capture
Trivedi, T. J., Lee, J. H., Lee, H. J., Jeong, Y. K., & Choi, J. W. (2016) · Green Chemistry · doi:10.1039/c5gc02319j · Cited by 299
Notz, R., Mangalapally, H. P., & Hasse, H. (2012) · International Journal of Greenhouse Gas Control · doi:10.1016/j.ijggc.2011.11.004 · Cited by 289
Organic liquid CO2 capture agents with high gravimetric CO2 capacity
Heldebrant, D. J., Yonker, C. R., Jessop, P. G., & Phan, L. (2008) · Energy & Environmental Science · doi:10.1039/b809533g · Cited by 271
Metadata
- Authors
- Kim, I., & Svendsen, H. F.
- Venue
- Industrial & Engineering Chemistry Research
- Publisher
- American Chemical Society (ACS)
- Published
- 2007-07-24
- Volume
- 46
- Issue
- 17
- Pages
- 5803-5809
- ISSN
- 0888-5885 (ISSN-L)
- 1520-5045
- OpenAlex
- W2024187362
- Cited by
- 446
- References
- 0
- FWCI
- 18.42
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Heat of Absorption of Carbon Dioxide (CO2) in Monoethanolamine (MEA) and 2-(Aminoethyl)ethanolamine (AEEA) Solutions. https://app.cochat.ai/papers/10.1021/ie0616489
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- Kim, I., & Svendsen, H. F. (2007). Heat of Absorption of Carbon Dioxide (CO2) in Monoethanolamine (MEA) and 2-(Aminoethyl)ethanolamine (AEEA) Solutions. Industrial & Engineering Chemistry Research. https://doi.org/10.1021/ie0616489
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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