Novel Dual-Membrane Gas−Liquid Contactors: Modelling and Concept Analysis
Bibliographic record
Abstract
Absorption processes have traditionally been used in the removal of contaminants from natural gas. A dual-membrane concept is proposed to improve the performance of membrane gas−liquid contactors. In the proposed configurations, a second membrane was added to a single-membrane system and a sweeping gas or a lower pressure applied on the permeate side of either a porous or nonporous second membrane. Theoretically, the new configurations can partially regenerate the solvent stream simultaneously with the absorption process, and, therefore, better absorption efficiencies can be obtained. The proposed configurations and the ordinary single-membrane contactor were simulated using partial differential equations based on a single-component absorption scheme. The solutions showed that the proposed dual-membrane contactor could remove gas components more efficiently, when compared to the ordinary contactor. A significant improvement in solvent flow rate and regeneration efficiency and, therefore, overall gas purification performance will be achieved using a dual-membrane absorption system.
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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 | 0.002 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| 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".