Kinetic studies on vapour phase pyridine synthesis and catalyst regeneration studies
Bibliographic record
Abstract
Abstract The kinetics of vapour phase aminocylisation of acetaldehyde, formaldehyde, and ammonia over deactivating HZSM‐5 catalyst is studied. A series‐parallel reaction scheme has been employed in which coke formation from its precursors has been lumped. Applying the concept of separable kinetics, the catalyst deactivation and reaction kinetics unconstrained and constrained by it are studied independently. Employing experimental time on stream studies, the rate of catalyst decay has been computed from the latter. A catalyst deactivation function based on experimental decay of its activity has been evaluated separately. Its magnitude and trajectory matched well with that of the computed catalyst decay function. It facilitated to obtain a direct relationship between coke formation and product distribution as a function of time on stream for aminocyclisation. An attempt has also been made to study the regeneration characteristics of the catalyst.
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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 | 0.000 | 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 | 0.000 | 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) | 0.000 | 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".