Equilibrium Data of Gas Hydrates containing Methane, Propane, and Hydrogen Sulfide
Bibliographic record
Abstract
Phase equilibria data on mixed hydrogen sulfide hydrates reported in the literature are very limited, especially for sII hydrate forming mixtures with H 2 S. In this study, six binary CH 4 + H 2 S hydrate phase equilibria measurement results are reported in the temperature range from T = (283.31 to 293.22) K and pressure range from p = (2.00 to 6.8) MPa. Ten ternary CH 4 + C 3 H 8 + H 2 S sII hydrate phase equilibria measurement results are reported in the temperature range from T = (286.22 to 304.80) K and pressure range from p = (1.36 to 5.48) MPa. Experimental data were measured using the isochoric pressure search (IPS) method, which has been well established as a method for obtaining accurate hydrate phase equilibria data. Experimental data were compared to several hydrate phase equilibria prediction programs to assess their accuracy. For most models, predictions of the ternary sII hydrate system resulted in average absolute deviations in temperature of greater than 1 K.
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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 | 0.001 | 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) | 0.002 | 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".