Improvement of Syngas Quality in Fixed Bed Gasifier Using CaMg(CO3)2 Catalyst
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Bibliographic record
Abstract
This paper deals with the experimental investigation of lignite (L) and wood (W) feedstock in a pilot-scale downdraft gasifier.The study aims to check the compatibility of CaMg(CO3)2 [dolomite (D)] catalyst, 5% (W/W), with lignite and wood (L+D, W+D) feedstock as an additive to enhance the performance of a 10 kWe atmospheric pressure downdraft gasifier system.Fuel consumption and gas flow rate were found to be 10.01-11.6 kg h -1 and 26.76-29.57kg h -1 , respectively, for lignite and wood feedstock (with and without catalyst).In lignite, CO and H2 concentrations were increased by 6.81 % and 4.9 %, respectively, whereas in wood, their concentrations were increased by 8.88 % and 5.1 % when the catalyst was employed with feedstock.The producer gas LHV and cold gas efficiency were increased by 6.02% and 5.75% in lignite and 6.97% and 6.61 in wood, whereas specific fuel consumption decreased by 5.92% (in L), 5.17 (in W) with dolomite feedstock.Tar and Total Particulate Matter (PM) concentrations in the producer gas were measured and found to have a noticeable decline with catalytic gasification for both feedstocks.The study concludes that adding dolomite offered better results in terms of higher efficiency and lower tar-PM concentrations.
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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 | 0.001 | 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 | 0.001 | 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 it