Details
| Original language | English |
|---|---|
| Pages (from-to) | 413-426 |
| Number of pages | 14 |
| Journal | Chemical engineering science |
| Volume | 104 |
| Publication status | Published - 18 Dec 2013 |
| Externally published | Yes |
Abstract
There are several different reactor configurations to improve the efficiency of biogas plants. The comparison and assessment of these are usually based on experimental observations. There, the substrate and the microbial community are in general not well characterized and differ in the different analyses in literature. That is why the results are not direct comparable or even lead to contradicting conclusions. In the present analysis, the different reactor configurations are compared on a common basis with defined conditions and composition by using simulations of a well established mathematical model. The configurations are grouped with respect to their working principles, namely spatial and temporal distribution as well as increase of the solid retention time.It was found that reactors with temporal as well as spatial distribution have a higher methane yield than a continuous stirred tank reactor. But the maximal possible space-time yield is lower. Reactors with an increased solid retention time can be operated at space-time yields of another order of magnitude, which leads to smaller reactors for a desired methane production rate.
Keywords
- ADM1, Anaerobic digestion, Biogas, Reactor configuration, Simulation
ASJC Scopus subject areas
- Chemistry(all)
- General Chemistry
- Chemical Engineering(all)
- General Chemical Engineering
- Engineering(all)
- Industrial and Manufacturing Engineering
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In: Chemical engineering science, Vol. 104, 18.12.2013, p. 413-426.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Reactor configurations for biogas plants - a model based analysis
AU - Bensmann, Astrid
AU - Hanke-Rauschenbach, Richard
AU - Sundmacher, Kai
N1 - Copyright: Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2013/12/18
Y1 - 2013/12/18
N2 - There are several different reactor configurations to improve the efficiency of biogas plants. The comparison and assessment of these are usually based on experimental observations. There, the substrate and the microbial community are in general not well characterized and differ in the different analyses in literature. That is why the results are not direct comparable or even lead to contradicting conclusions. In the present analysis, the different reactor configurations are compared on a common basis with defined conditions and composition by using simulations of a well established mathematical model. The configurations are grouped with respect to their working principles, namely spatial and temporal distribution as well as increase of the solid retention time.It was found that reactors with temporal as well as spatial distribution have a higher methane yield than a continuous stirred tank reactor. But the maximal possible space-time yield is lower. Reactors with an increased solid retention time can be operated at space-time yields of another order of magnitude, which leads to smaller reactors for a desired methane production rate.
AB - There are several different reactor configurations to improve the efficiency of biogas plants. The comparison and assessment of these are usually based on experimental observations. There, the substrate and the microbial community are in general not well characterized and differ in the different analyses in literature. That is why the results are not direct comparable or even lead to contradicting conclusions. In the present analysis, the different reactor configurations are compared on a common basis with defined conditions and composition by using simulations of a well established mathematical model. The configurations are grouped with respect to their working principles, namely spatial and temporal distribution as well as increase of the solid retention time.It was found that reactors with temporal as well as spatial distribution have a higher methane yield than a continuous stirred tank reactor. But the maximal possible space-time yield is lower. Reactors with an increased solid retention time can be operated at space-time yields of another order of magnitude, which leads to smaller reactors for a desired methane production rate.
KW - ADM1
KW - Anaerobic digestion
KW - Biogas
KW - Reactor configuration
KW - Simulation
KW - ADM1
KW - Anaerobic digestion
KW - Biogas
KW - Reactor configuration
KW - Simulation
KW - Mathematical models
KW - Methane
UR - http://www.scopus.com/inward/record.url?scp=84885444853&partnerID=8YFLogxK
U2 - 10.1016/j.ces.2013.09.025
DO - 10.1016/j.ces.2013.09.025
M3 - Article
AN - SCOPUS:84885444853
VL - 104
SP - 413
EP - 426
JO - Chemical engineering science
JF - Chemical engineering science
SN - 0009-2509
ER -