Inhibition Performance of Copper Carbonate in CO2 Absorption Process Using Aqueous MEA
Bibliographic record
Abstract
Abstract This work investigated the inhibition performance of copper carbonate (CuCO3) which is less-toxic than conventional heavy-metal corrosion inhibitors in the CO2 absorption process using amine solutions. The investigation was experimentally carried out in an electrochemical cell containing an aqueous solution of 5 kmol/m3 monoethanolamine (MEA) loaded with 0.20 mol/mol CO2 loading at 40 and 80°C. The inhibition performance was examined as a function of process parameters including inhibitor concentration, the presence of dissolved oxygen, solution velocity, solution temperature, CO2 loading and the presence of heat-stable salts. The results show that CuCO3 functions as an anodic inhibitor forming passive film to inhibit the corrosion. It performs well in most tested environments. However, the absence of oxygen may cause copper to plate out, leading to pitting.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| 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 | 0.001 | 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 source (direct Gemma or distilled Codex), 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".