A Study of the Catalyst/Absorbent Effect on the Hydrogen Production by Solid Absorption Enhanced Water Gas Shift (SAEWGS)
Bibliographic record
Abstract
The combination of the WGS and CO2 solid absorption (SAEWGS) produce H2 and CO2 separation in one step. Experimental conditions: quartz-made fixed bed reactor at SV = 1500 h-1, feed; 5 % CO, 15 % H2O, balance He-N2 and 600 °C, 1 atm. Absorbents tested were calcined dolomite (CaO*MgO) and sodium zirconate (Na2ZrO3) employing catalyst/absorbent mixtures in 1/1 and 1/2 weight ratios. A synthesized WGS catalyst (Fe-Cr) was used. Results using the mixture catalyst/absorbent = 1/2 with CaO*MgO generated 95 % of H2 and 5 % CO2 without CO. An increase in the catalyst/absorbent weight ratio from 1/1 to 1/2 also increased hydrogen from 89 to 95 %, respectively. This was attributed to slow CO2 diffusion into the particle affecting absorption kinetics. Whereas, Na2ZrO3 produced only 70 % H2, 29 % CO2 and 1 % CO being a small CO2 partial pressure responsible for the lower H2 content. Using Na2ZrO3, the variation of the cat/abs ratio had no effect over the hydrogen content.
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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 | 0.001 | 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 | 0.000 | 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".