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A novel two-stage process for biological conversion of syngas to biomethane
D. Andreides, JI. Bautista Quispe, J. Bartackova, D. Pokorna, J. Zabranska
Jazyk angličtina Země Velká Británie
Typ dokumentu časopisecké články
- MeSH
- anaerobióza MeSH
- biopaliva MeSH
- bioreaktory * MeSH
- methan * MeSH
- odpadní vody MeSH
- Publikační typ
- časopisecké články MeSH
This study shows biomethane production in a novel two-stage syngas biomethanation consisting of the thermophilic anaerobic digestion of sewage sludge combined with an injection of syngas as the first stage. Since the syngas does not contain enough reducing equivalents, the produced biogas was connected to the second stage consisting of the trickle-bed reactor with the external H2 addition (ex-situ) to increase the CH4 content further. The aim was to evaluate the influence of different syngas compositions on the biomethane production in both stages. The results showed that H2 concentration in syngas is the main factor affecting the CH4 content in biogas. Moreover, the ex-situ reactor with H2 addition served to convert the residual CO and CO2, achieving the maximum CH4 content of 94.7% in the produced biomethane. In summary, the two-stage process enables biomethane production without any inhibitory effects on anaerobic sludge digestion.
Citace poskytuje Crossref.org
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- $a Andreides, Dominik $u Department of Water Technology and Environmental Engineering, Faculty of Environmental Technology, University of Chemistry and Technology Prague, Technicka 1905, 166 28 Prague, Czech Republic. Electronic address: andreidd@vscht.cz
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- $a A novel two-stage process for biological conversion of syngas to biomethane / $c D. Andreides, JI. Bautista Quispe, J. Bartackova, D. Pokorna, J. Zabranska
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- $a This study shows biomethane production in a novel two-stage syngas biomethanation consisting of the thermophilic anaerobic digestion of sewage sludge combined with an injection of syngas as the first stage. Since the syngas does not contain enough reducing equivalents, the produced biogas was connected to the second stage consisting of the trickle-bed reactor with the external H2 addition (ex-situ) to increase the CH4 content further. The aim was to evaluate the influence of different syngas compositions on the biomethane production in both stages. The results showed that H2 concentration in syngas is the main factor affecting the CH4 content in biogas. Moreover, the ex-situ reactor with H2 addition served to convert the residual CO and CO2, achieving the maximum CH4 content of 94.7% in the produced biomethane. In summary, the two-stage process enables biomethane production without any inhibitory effects on anaerobic sludge digestion.
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