The Research on the Coordinative and Competitive Relationship between MEA and DEA Absorbing CO2 into Aqueous Blended Amine Solution
Bibliographic record
Abstract
In this work, 13C NMR spectroscopy was used to study the reaction process of the 2.0 M blended amine of MEA-DEA (1:1) with CO2. The concentrations of free amines, the carbamates of amines, protonated amines, HCO3− and CO32− in the solutions were generated over the CO2 loading range from 0 to 0.7 mol CO2/mol amine at the temperature of 301K in order to understand the specific process of the reaction between the blended amine and CO2. The results show that only the carbamate of MEA was generated under lower CO2 loading, which means that MEA is more competitive than DEA, while when the CO2 loading, the carbamate of DEA (namely, DEACOO−) was also generated, which means that when the CO2 loading reached 0.231 mol CO2/mol amine and the concentration of MEA was decreased a certain extent, the abilities of MEA and DEA to react with CO2 were well-matched.
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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 | 0.001 | 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 | 0.001 | 0.001 |
| 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".