Innovative Ex-situ Biological Biogas Upgrading Using Immobilized Biomethanation Bioreactors Combined With Micro Sorbents
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| Format: | Recurso digital |
| Sprache: | Englisch |
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2025
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| _version_ | 1866902259768492032 |
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| author | Baransi Karkaby, Katie Hassanin, Mahdi Sabbah, Isam |
| author_facet | Baransi Karkaby, Katie Hassanin, Mahdi Sabbah, Isam |
| contents | <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> |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_17357532 |
| institution | Zenodo |
| language | eng |
| publishDate | 2025 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | Innovative Ex-situ Biological Biogas Upgrading Using Immobilized Biomethanation Bioreactors Combined With Micro Sorbents Baransi Karkaby, Katie Hassanin, Mahdi Sabbah, Isam Biogas upgrading Hydrogenotrophic Methanogenesis Micro Sorbents Methane Production <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> |
| title | Innovative Ex-situ Biological Biogas Upgrading Using Immobilized Biomethanation Bioreactors Combined With Micro Sorbents |
| topic | Biogas upgrading Hydrogenotrophic Methanogenesis Micro Sorbents Methane Production |
| url | https://doi.org/10.5281/zenodo.17357532 |