| Title |
Biomethanation of syngas by enriched mixed anaerobic consortium in pressurized agitated column |
| ID_Doc |
7137 |
| Authors |
Figueras, J; Benbelkacem, H; Dumas, C; Buffiere, P |
| Title |
Biomethanation of syngas by enriched mixed anaerobic consortium in pressurized agitated column |
| Year |
2021 |
| Published |
|
| DOI |
10.1016/j.biortech.2021.125548 |
| Abstract |
In a circular economy approach, heterogeneous wastes can be upgraded to energy in the form of syngas via pyrogasification, and then to methane via biomethanation. Working at high pressure is a promising approach to intensify the process and to reduce gas-liquid transfer limitations. However, raising the pressure could lead to reaching the CO inhibition threshold of the microorganisms involved in syngas-biomethanation. To investigate the impact on pressure on the process, a 10L continuous stirred tank reactor working at 4 bars and 55 degrees C was implemented. Syngas (40% CO, 40% H2, 20% CO2) biomethanation was performed successfully and methane productivity as high as 6.8 mmolCH4/Lreactor/h with almost full conversion of CO (97%) and H2 (98%) was achieved. CO inhibition was investigated and carboxydotrophs appeared less resistant to high CO exposition than methanogens. |
| Author Keywords |
Biomethanation; Syngas; Fermentation; Carbon monoxide conversion; Biological water-gas shift |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:000681715300010 |
| WoS Category |
Agricultural Engineering; Biotechnology & Applied Microbiology; Energy & Fuels |
| Research Area |
Agriculture; Biotechnology & Applied Microbiology; Energy & Fuels |
| PDF |
http://manuscript.elsevier.com/S0960852421008890/pdf/S0960852421008890.pdf
|