Research Article
A Single-Culture Bioprocess of Methanothermobacter thermautotrophicus to Upgrade Digester Biogas by CO2-to-CH4 Conversion with H2
Table 3
Performance comparison between studies for M. thermautotrophicus cultures and reactor microbiomes that produce methane.
| | Studiesāparameters and references | Influent gas mixture | VMPR (L/L-day) | Fuel production rate (g/L-h) | Active volume (L) | References |
| | Experiment | CO2/H2 | 49.2 | 1.33 | 3.5 | This study | | Experiment | CO2/H2 | 65.6 | 1.79 | 3 | This study | | Experiment | CO2/H2 | 50.5 | 1.37 | 3 | This study | | Experiment | Synth. biogas/H2 | 12.6 | 0.34 | 3 | This study | | Experiment | Industrial biogas/H2 | 12.0 | 0.32 | 3 | This study | | Pure culture M. thermautotrophicus study | CO2/H2 | 163 | 4.39 | 1.5 | [21] | | High-rate, laboratory-scale anaerobic digester | No infl. gas | 11.7* | 0.35 | 20 | [24] | | In-situ CO2 conversion with anaerobic digester | Industrial biogas/H2 | 0.45 | 0.01 | 3.5 | [12] | | Postprocessing with microbiome | Synth. biogas/H2 | 5.3 | 0.14 | 0.6 | [16] |
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VMPR was corrected for standard temperature and pressure.
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