Framework for the Prediction and Assessment of Corrosion Damages in Amine Systems Using Plant Data, Process Simulation and Data Analysis
Bibliographic record
Abstract
Abstract The prediction and assessment of corrosion rates in amine gas treating units include reviewing current and historical environmental components such as amine type, H2S and CO2 loading, and temperature; to identify, trend, and provide corrective actions for potential problems related to streams quality, contamination, or damage diagnosis. This review is completed with data obtained from traditional off-line monitoring methods, such as mechanical integrity reports and analysis of the process streams, to capture the state of criticality of the system. Recent advances in corrosion modeling of amine systems allow integrating this data with numerical modeling to effectively quantity and predict corrosion rates. Numerical modeling is based on empirical models, which are usually limited within the ranges of data used in their development, unlike first-principles models that can accurately extrapolate beyond this range. Furthermore, empirical models may lead to significant errors when extrapolated outside the range of the training data. Therefore, their accuracy can be substantially improved by adding data generated from first- principles models through a sensitivity analysis of process and corrosion-related variables. This work proposes a framework for predicting and assessing corrosion rates in amine gas treating units, using surrogate models that combine process simulation software and plant data. A first-principles model of a simulated amine plant is employed to predict process-related variables, combined with a mechanistic model used to predict corrosion rates. Once the data is collected, exploratory data analysis is employed to quantify the correlation between process and corrosion variables, dimensionality reduction, outliers’ detection and treatment, and model performance evaluation. This framework also provides guidelines for selecting surrogate models predicting process variables and corrosion rates. These models can eventually be coupled with multi-objective optimization algorithms for control purposes.
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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 | 0.002 | 0.004 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.002 |
| Bibliometrics | 0.002 | 0.001 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.002 | 0.001 |
| Open science | 0.002 | 0.002 |
| Research integrity | 0.002 | 0.001 |
| Insufficient payload (model declined to judge) | 0.001 | 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".