Correlations for Equilibrium Solubility of Carbon Dioxide in Aqueous 4-(Diethylamino)-2-butanol Solutions
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Bibliographic record
Abstract
The experimental results of the equilibrium solubility of CO 2 in aqueous 4-(diethylamino)-2-butanol (DEAB) solutions are reported over the temperature range of 298–333 K, CO 2 partial pressure range of 10–100 kPa, and DEAB concentration range of 1–2.5 M. These results were then used to calculate, with the help of various thermodynamic models, the equilibrium solubility constant of CO 2 in aqueous DEAB solutions as a function of various operating parameters. Subsequently, data for the chemical equilibrium constant that governs the CO 2 –DEAB–water reaction were fitted to the correlation models of Kent–Eisenberg, Austgen, Li–Shen, and Hu–Chakma and used to predict the equilibrium solubility as a function of temperature and CO 2 partial pressure. The results show that these models did not represent the CO 2 equilibrium solubility in aqueous DEAB solution very well, with absolute average deviations of 7.3%, 7.3%, 7.1%, and 8.3%, respectively.
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Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
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