Catalytic Ozone Decomposition in a High Density Circulating Fluidized Bed Riser
Bibliographic record
Abstract
Reactor performance of a high density circulating fluidized bed (CFB) riser is studied using ozone decomposition with extremely high solids circulation rates up to 800 kg/m 2 s and superficial gas velocities ranging from 5 to 9 m/s. Results show that the axial and radial distributions of the ozone concentration are consistent with those of the solids holdup. Higher solids flux and/or lower gas velocity lead to higher reaction conversion in the riser. Solids holdup is the dominant factor affecting reaction conversion. Effects of solids holdup on overall ozone conversion are more significant under high superficial gas velocity and/or low solids circulation rate. Overall conversion in the high density riser is not only less than that of plug flow reactor but also less than that of completely stirred tank reactor indicating that, due to the two-phase nature inside the riser, a CFB riser is still far from an ideal plug flow reactor.
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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) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 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 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".