Ethylene manufacture by partial oxidation with sulfur
Bibliographic record
Abstract
The objective of this study was to examine the sulfur-mediated oxidation of ethane to ethylene. In summary, it has been found that ethylene can be produced in high yield (ca 75%) by the oxidation of ethane with excess sulfur in the 800–850 °C temperature range using a residence time of about 1 s. It is surmised that the high ethylene yield arises from the relatively weak C–S bond which precludes the formation of carbon–sulfur compounds so favoring pathways to ethylene. A process scheme is suggested which incorporates ethylene production into sulfur recovery, plants for which are found in essentially all refineries and in sour gas processing. A potential advantage of this chemistry over standard ethane steam cracking is that the sulfur process considerably increases carbon efficiency for ethylene production as most of the energy required for ethylene synthesis is supplied by the oxidation of H2S.
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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 | 0.000 |
| 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".