Enthalpy of Solution of Carbon Dioxide in Aqueous Solutions of Triethanolamine at Temperatures of 322.5 K and 372.9 K and Pressures up to 5 MPa
Bibliographic record
Abstract
The enthalpies of solution (Δ sol H ) of carbon dioxide (CO 2 ) in two aqueous solutions ( w = 0.1500 and w = 0.3000) of triethanolamine (TEA) have been measured for the first time at T = 322.5 K and 372.9 K and p up to 5 MPa, by flow calorimetry. Enthalpies of solution of CO 2 (Δ sol H ) have been obtained as function of loading α (mol CO 2 ·mol amine –1 ). Solubility data ( s ) of the gas into the solution were also determined. Influences of temperature, pressure, and absorbent composition have been discussed. Our experimental enthalpies of solution have been compared with data derived from a thermodynamic model of phase equilibria based on a γ–ϕ approach. The enthalpy of solution of CO 2 in aqueous solutions of methyldiethanolamine (MDEA), monoethanolamine (MEA), and diethanolamine (DEA) have been compared to the present results to discuss the effects of the hindrance on the nitrogen nucleus as well as its degree of substitution, on the enthalpy of solution.
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How this classification was reachedexpand
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 | 0.000 | 0.000 |
| 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".