Determination of the Structural Features of Distinct Amines Important for the Absorption of CO<sub>2</sub> and Regeneration in Aqueous Solution
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Bibliographic record
Abstract
A study of carbon dioxide (CO 2 ) absorption/desorption has been carried out to estimate the influence of the structural features of distinct amines on their CO 2 absorption and regeneration. The absorption has been made at two different CO 2 flow rates with a series of aqueous 5 wt % ammonia, monoethanolamine (MEA), triethanolamine (TEA), triethylamine, pyridine, pyrrolidine, 2-(2-aminoethylamino)ethanol (AEE), and N -(2-aminoethyl)-1,3-propanediamine (AEPDNH 2 ) solutions, while the CO 2 desorption has been performed by heating these solutions. The presence of two or three amino groups in AEE and AEPDNH 2, the structure of tertiary amine and alkanolamine, and a nonaromatic ring of pyrrolidine might favor the CO 2 absorption, while the structural features of ammonia and pyridine seem to be unfavorable. The tertiary alkanolamine is the most easy to regenerate and looses less of its CO 2 loading after regeneration. It appears that AEE and AEPDNH 2 would represent interesting compounds which could be used as CO 2 absorbents in industrial technologies to prevent CO 2 release into the atmosphere.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
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 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it