DIMETHYL ETHER SYNTHESIS FROM SYNGAS DERIVED FROM BIOMASS GASIFICATION AND REFORMING
Bibliographic record
Abstract
The hydrogen-rich syngas produced by air-steam gasification of pine sawdust at 800℃ was used for direct dimethyl ether (DME) synthesis. The raw syngas contained large amount of CO_2. The stoichiometric adjustment can be accomplished by CH_4-CO_2 dry reforming reaction with addition of CH_4 under the condition of 700℃,0.1MPa. The H_2/CO ratio could be adjusted from 1.5 to 2.0. The content of CO_2 and CH_4 in the exit gas from the reforming reactor was below 3mol%. The optimized CH_4 addition rate was CH_4/CO_2=1. The results of DME synthesis from biomass syngas under the condition of 260℃,4MPa,12000h-1 showed that biomass carbon conversion was above 70% and the selectivity to dimethyl ether in the synthesis reaction was 69.6%.
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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) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 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".