A comparison between CO<sub>2</sub> gasification of various biomass chars and coal char
Bibliographic record
Abstract
Abstract In this paper, municipal solid waste (MSW), sewage sludge (SS), and rice straw (RS) were pyrolyzed under N 2 atmosphere and at 550 and 600 °C, and then the produced biochars were used for gasification in a CO 2 atmosphere. The effects of pyrolysis temperature, gasification temperature, and CO 2 /C ratio on the product composition and yield were studied. The results were compared with those from coal char gasification. The CO 2 gasification kinetics were determined under CO 2 flow by thermogravimetric analysis (TGA). CO concentration in the syngas of the gasification experiments can be organized in the following order: MSW char > RS char > SS char > coal char. Considering the energy consumption and CO yield, the recommended gasification temperature for the biomass chars is 900 °C. The activation energies of CO 2 gasification calculated from the TGA data based on the most fitted reaction models can be organized in the following order: coal char > RS char > SS char > MSW char, which is consistent with the experimental results. For higher syngas field and lower CO 2 /C ratio, MSW char is recommended as the best feedstock for in the combined pyrolysis‐gasification process.
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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".