An overview of biomethanation and the use of membrane technologies as a candidate to overcome H2 mass transfer limitations
Fachal-Suárez, Manuel (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental)
Krishnan, Santhana (Prince of Songkla University. Department of Civil and Environmental Engineering)
Chaiprapat, Sumate (Prince of Songkla University. Department of Civil and Environmental Engineering)
González Alé, Daniel (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental)
Gabriel, David (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental)

Data:	2024
Descripció:	17 pàg.
Resum:	Energy produced from renewable sources such as sun or wind are intermittent, depending on circumstantial factors. This fact explains why energy supply and demand do not match. In this context, the interest in biomethanation has increased as an interesting contribution to the Power-to-gas concept (P2G), transforming the extra amount of produced electricity into methane (CH4). The reaction between green hydrogen (H2) (produced by electrolysis) and CO2 (pollutant present in biogas) can be catalysed by different microorganisms to produce biomethane, that can be injected into existing natural gas grid if reaching the standards. Thus, energy storage for both hydrogen and electricity, as well as transportation problems would be solved. However, H2 diffusion to the liquid phase for its further biological conversion is the main bottleneck due to the low solubility of H2. This review includes the state-of-the-art in biological hydrogenotrophic methanation (BHM) and membrane-based technologies. Specifically, the use of hollow-fiber membrane bioreactors as a technology to overcome H2 diffusion limitations is reviewed. Furthermore, the influence of operating conditions, microbiology, H2 diffusion and H2 injection methods are critically discussed before setting the main recommendations about BHM.
Ajuts:	Agencia Estatal de Investigación PID2021-126253OB-C21
Drets:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Llengua:	Anglès
Document:	Article de revisió ; recerca ; Versió publicada
Matèria:	Biogas upgrading ; Biomethanation ; H diffusion ; Hollow-fiber membranes ; SDG 7 - Affordable and Clean Energy
Publicat a:	Biotechnology Advances, Vol. 77 (December 2024) , art. 108465, ISSN 1873-1899

DOI: 10.1016/j.biotechadv.2024.108465
PMID: 39413888

17 p, 3.8 MB

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