Kinetics of reverse water‐gas shift reaction over Pt/Al<sub>2</sub>O<sub>3</sub> catalyst
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Bibliographic record
Abstract
Abstract The CAMERE (Carbon Dioxide Hydrogenation to Form Methanol via a Reverse Water‐Gas Shift Reaction) process for the transformation of CO 2 into methanol comprises reverse water‐gas shift (RWGS) and methanol production. In this work, the reaction kinetics of RWGS was investigated using a commercial Pt/Al 2 O 3 catalyst. Catalytic runs were accomplished in a fixed‐bed flow reactor at 0.1 MPa in the 573–873 K range. The space time was varied in the 0.03–0.25 g · h/L range. The prevalence of the chemical control regime was established. The influence of reaction variables on the catalyst performance was investigated, and it was found that the increase in pressure resulted in a growing CO 2 conversion value. The reactor was operated under differential reaction conditions and the influence of the H 2 /CO 2 ratio in the feed on reaction rates was studied. Finally, the reaction pathway was analyzed using the associative and redox reaction mechanisms, and the latter appeared dominant over Pt/Al 2 O 3 .
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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 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 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 | 0.001 |
| 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 it