Syngas Fermentation: Cleaning of Syngas as a Critical Stage in Fermentation Performance
The fermentation of syngas is an attractive technology that can be integrated with gasification of lignocellulosic biomass. The coupling of these two technologies allows for treating a great variety of raw materials. Lignin usually hinders microbial fermentations; thus, the thermal decomposition of...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-10-01
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| Series: | Fermentation |
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| Online Access: | https://www.mdpi.com/2311-5637/9/10/898 |
| _version_ | 1827721053520003072 |
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| author | Marcos Ellacuriaga María Victoria Gil Xiomar Gómez |
| author_facet | Marcos Ellacuriaga María Victoria Gil Xiomar Gómez |
| author_sort | Marcos Ellacuriaga |
| collection | DOAJ |
| description | The fermentation of syngas is an attractive technology that can be integrated with gasification of lignocellulosic biomass. The coupling of these two technologies allows for treating a great variety of raw materials. Lignin usually hinders microbial fermentations; thus, the thermal decomposition of the whole material into small molecules allows for the production of fuels and other types of molecules using syngas as substrate, a process performed at mild conditions. Syngas contains mainly hydrogen, carbon monoxide, and carbon dioxide in varying proportions. These gases have a low volumetric energy density, resulting in a more interesting conversion into higher energy density molecules. Syngas can be transformed by microorganisms, thus avoiding the use of expensive catalysts, which may be subject to poisoning. However, the fermentation is not free of suffering from inhibitory problems. The presence of trace components in syngas may cause a decrease in fermentation yields or cause a complete cessation of bacteria growth. The presence of tar and hydrogen cyanide are just examples of this fermentation’s challenges. Syngas cleaning impairs significant restrictions in technology deployment. The technology may seem promising, but it is still far from large-scale application due to several aspects that still need to find a practical solution. |
| first_indexed | 2024-03-10T21:15:33Z |
| format | Article |
| id | doaj.art-4828c312bfb540d4a0b8434f7ee594eb |
| institution | Directory Open Access Journal |
| issn | 2311-5637 |
| language | English |
| last_indexed | 2024-03-10T21:15:33Z |
| publishDate | 2023-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Fermentation |
| spelling | doaj.art-4828c312bfb540d4a0b8434f7ee594eb2023-11-19T16:26:21ZengMDPI AGFermentation2311-56372023-10-0191089810.3390/fermentation9100898Syngas Fermentation: Cleaning of Syngas as a Critical Stage in Fermentation PerformanceMarcos Ellacuriaga0María Victoria Gil1Xiomar Gómez2Department of Chemistry and Applied Physics, Chemical Engineering Area, Campus de Vegazana s/n, University of León, 24071 León, SpainInstituto de Ciencia y Tecnología del Carbono—Consejo Superior de Investigaciones Científicas, Francisco Pintado Fe 26, 33011 Oviedo, SpainDepartment of Chemistry and Applied Physics, Chemical Engineering Area, Campus de Vegazana s/n, University of León, 24071 León, SpainThe fermentation of syngas is an attractive technology that can be integrated with gasification of lignocellulosic biomass. The coupling of these two technologies allows for treating a great variety of raw materials. Lignin usually hinders microbial fermentations; thus, the thermal decomposition of the whole material into small molecules allows for the production of fuels and other types of molecules using syngas as substrate, a process performed at mild conditions. Syngas contains mainly hydrogen, carbon monoxide, and carbon dioxide in varying proportions. These gases have a low volumetric energy density, resulting in a more interesting conversion into higher energy density molecules. Syngas can be transformed by microorganisms, thus avoiding the use of expensive catalysts, which may be subject to poisoning. However, the fermentation is not free of suffering from inhibitory problems. The presence of trace components in syngas may cause a decrease in fermentation yields or cause a complete cessation of bacteria growth. The presence of tar and hydrogen cyanide are just examples of this fermentation’s challenges. Syngas cleaning impairs significant restrictions in technology deployment. The technology may seem promising, but it is still far from large-scale application due to several aspects that still need to find a practical solution.https://www.mdpi.com/2311-5637/9/10/898biomass gasificationlignocellulosic materialbiofuelsethanolshort chain alcohols |
| spellingShingle | Marcos Ellacuriaga María Victoria Gil Xiomar Gómez Syngas Fermentation: Cleaning of Syngas as a Critical Stage in Fermentation Performance Fermentation biomass gasification lignocellulosic material biofuels ethanol short chain alcohols |
| title | Syngas Fermentation: Cleaning of Syngas as a Critical Stage in Fermentation Performance |
| title_full | Syngas Fermentation: Cleaning of Syngas as a Critical Stage in Fermentation Performance |
| title_fullStr | Syngas Fermentation: Cleaning of Syngas as a Critical Stage in Fermentation Performance |
| title_full_unstemmed | Syngas Fermentation: Cleaning of Syngas as a Critical Stage in Fermentation Performance |
| title_short | Syngas Fermentation: Cleaning of Syngas as a Critical Stage in Fermentation Performance |
| title_sort | syngas fermentation cleaning of syngas as a critical stage in fermentation performance |
| topic | biomass gasification lignocellulosic material biofuels ethanol short chain alcohols |
| url | https://www.mdpi.com/2311-5637/9/10/898 |
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