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Article
2024

Measurement of the reaction enthalpy of CO₂ in aqueous solutions with thermographic and gravimetric methods

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In this work, a new concept for the approximate determination of the reaction enthalpy of the reaction between CO2 and monoethanolamine (MEA) in aqueous solution was developed. For this purpose, a CO2 gas stream was flowed into aqueous MEA solutions with different concentrations of 1 wt%, 2.5 wt% and 7.5 wt%. The weight difference ∆T, which is based on the increase in CO2 bound by the MEA over time, was documented using a thermographic camera. The mass difference ∆m, which is also based on the increase in CO2 bound by the MEA over time, was determined using a balance. By determining ∆T and ∆m, an approximate calculation of the reaction enthalpy is possible. The deviation from the values from the data known from the literature was less than 5% in all experiments.

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Scientific reports, 14 (2024), 10373. https://doi.org/10.1038/s41598-024-61242-9. ISSN: 2045-2322 London : Nature Publishing Group UK

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Jung-Fittkau, J., Diebold, J., Kruse, A., Deigner, H.-P., & Schmidt, M. S. (2024). Measurement of the reaction enthalpy of CO2 in aqueous solutions with thermographic and gravimetric methods. Scientific reports, 14. https://doi.org/10.1038/s41598-024-61242-9

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English

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540 Chemistry

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Sustainable Development Goals

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@article{Jung-Fittkau2024, doi = {10.1038/s41598-024-61242-9}, author = {Jung-Fittkau, Jessica and Diebold, Josef and Kruse, Andrea et al.}, title = {Measurement of the reaction enthalpy of CO2 in aqueous solutions with thermographic and gravimetric methods}, journal = {Scientific Reports}, year = {2024}, volume = {14}, }

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