Gorde:
| Egile Nagusiak: | , , |
|---|---|
| Formatua: | Recurso digital |
| Hizkuntza: | ingelesa |
| Argitaratua: |
Zenodo
2025
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| Gaiak: | |
| Sarrera elektronikoa: | https://doi.org/10.5281/zenodo.17357532 |
| Etiketak: |
Etiketa erantsi
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Aurkibidea:
- <p><span lang="EN-GB">Biogas upgrading enhances energy value by increasing methane content. This study investigates an ex-situ biological upgrading approach using immobilized biomethanation bioreactors (IBBRs) with micro sorbents. Microporous organic polymers (MOPs: XDV1, XDV3) and powdered activated carbon (PAC) were incorporated into hydrophilic polyurethane (HPU) matrices to improve H₂ and CO₂ adsorption, enhancing hydrogenotrophic methanogenesis. Semi-batch and continuous lab-scale IBBRs were tested to assess the impact of gas recirculation and micro sorbents on methane production, H₂ consumption, and CO₂ removal. XDV1 exhibited the highest CH₄ enhancement due to superior gas adsorption capacity. Reducing recirculation lowered methane yield, but MOPs-alginate reactors achieved the highest CH₄ (83%), surpassing PAC-based systems. Hydrogen consumption was highest in MOPs-alginate reactors, confirming enhanced gas transfer efficiency. These results highlight micro sorbents as an effective tool for optimizing biomethanation, offering a scalable solution for biogas valorization.</span></p>