Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 413-425 |
| Seitenumfang | 13 |
| Fachzeitschrift | Applied energy |
| Jahrgang | 134 |
| Publikationsstatus | Veröffentlicht - 1 Dez. 2014 |
| Extern publiziert | Ja |
Abstract
One option to utilize excess electric energy is its conversion to hydrogen and the subsequent methanation. An alternative to the classical chemical Sabatier process is the biological methanation (methanogenesis) within biogas plants. In conventional biogas plants methane and carbon dioxide is produced. The latter can be directly converted to methane by feeding hydrogen into the reactor, since hydrogenotrophic bacteria are present.In the present contribution, a comprehensive simulation study with respect to stationary operating conditions and disturbances is presented. It reveals two qualitative different limitations, namely a biological limit (appr. at 4mH23/. mCO23 corresponds to 4.2mH2,STP3/. mliq3/d) as well as a transfer limit. A parameter region for a safe operation was defined. The temporary operation with stationary unfeasible conditions was analysed and thereby three qualitatively different disturbances can be distinguished. In one of these the operation for several days is possible. On the basis of these results, a controller was proposed and tested that meets the demands on the conversion of hydrogen and also prevents the washout of the microbial community due to hydrogen overload.
Schlagwörter
- ADM1, Anaerobic digestion, Biogas upgrading, Biological methanation, hydrogen
ASJC Scopus Sachgebiete
- Ingenieurwesen (insg.)
- Bauwesen
- Energie (insg.)
- Allgemeine Energie
- Ingenieurwesen (insg.)
- Maschinenbau
- Umweltwissenschaften (insg.)
- Management, Monitoring, Politik und Recht
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in: Applied energy, Jahrgang 134, 01.12.2014, S. 413-425.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Biological methanation of hydrogen within biogas plants
T2 - A model-based feasibility study
AU - Bensmann, A.
AU - Hanke-Rauschenbach, R.
AU - Heyer, R.
AU - Kohrs, F.
AU - Benndorf, D.
AU - Reichl, U.
AU - Sundmacher, K.
N1 - Copyright: Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2014/12/1
Y1 - 2014/12/1
N2 - One option to utilize excess electric energy is its conversion to hydrogen and the subsequent methanation. An alternative to the classical chemical Sabatier process is the biological methanation (methanogenesis) within biogas plants. In conventional biogas plants methane and carbon dioxide is produced. The latter can be directly converted to methane by feeding hydrogen into the reactor, since hydrogenotrophic bacteria are present.In the present contribution, a comprehensive simulation study with respect to stationary operating conditions and disturbances is presented. It reveals two qualitative different limitations, namely a biological limit (appr. at 4mH23/. mCO23 corresponds to 4.2mH2,STP3/. mliq3/d) as well as a transfer limit. A parameter region for a safe operation was defined. The temporary operation with stationary unfeasible conditions was analysed and thereby three qualitatively different disturbances can be distinguished. In one of these the operation for several days is possible. On the basis of these results, a controller was proposed and tested that meets the demands on the conversion of hydrogen and also prevents the washout of the microbial community due to hydrogen overload.
AB - One option to utilize excess electric energy is its conversion to hydrogen and the subsequent methanation. An alternative to the classical chemical Sabatier process is the biological methanation (methanogenesis) within biogas plants. In conventional biogas plants methane and carbon dioxide is produced. The latter can be directly converted to methane by feeding hydrogen into the reactor, since hydrogenotrophic bacteria are present.In the present contribution, a comprehensive simulation study with respect to stationary operating conditions and disturbances is presented. It reveals two qualitative different limitations, namely a biological limit (appr. at 4mH23/. mCO23 corresponds to 4.2mH2,STP3/. mliq3/d) as well as a transfer limit. A parameter region for a safe operation was defined. The temporary operation with stationary unfeasible conditions was analysed and thereby three qualitatively different disturbances can be distinguished. In one of these the operation for several days is possible. On the basis of these results, a controller was proposed and tested that meets the demands on the conversion of hydrogen and also prevents the washout of the microbial community due to hydrogen overload.
KW - ADM1
KW - Anaerobic digestion
KW - Biogas upgrading
KW - Biological methanation
KW - Hydrogen
KW - ADM1
KW - Anaerobic digestion
KW - Biogas upgrading
KW - Biological methanation
KW - hydrogen
UR - http://www.scopus.com/inward/record.url?scp=84906852919&partnerID=8YFLogxK
U2 - 10.1016/j.apenergy.2014.08.047
DO - 10.1016/j.apenergy.2014.08.047
M3 - Article
AN - SCOPUS:84906852919
VL - 134
SP - 413
EP - 425
JO - Applied energy
JF - Applied energy
SN - 0306-2619
ER -