Kinetics of the Pyrolysis of Lignin Using Thermogravimetric and Differential Scanning Calorimetry Methods
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Bibliographic record
Abstract
The thermal behavior of a hardwood lignin found in Eastern Canada was investigated by thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). Kinetic parameters were determined for pyrolysis of lignin from room temperature to 300 at 15 °C·min −1 . The maximum rate of thermal destruction of lignin occurred between 246−259 °C. The DSC thermogram of lignin showed an endothermic peak at approximately 113 °C. The kinetic model was applied, and the activation energy for the lignin was calculated. The weight loss data showed first order decomposition with Arrhenius behavior. The activation energy value obtained for lignin was in the range of 8−68 kcal·mol −1 . The results showed that the kinetic model fitted the data well in the specific range of temperatures. The present model was also compared with the experimental data available in the literature, and the comparisons of E a values are tabulated.
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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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| 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 it