Production of Hydrogen from Biomass with Negative CO<sub>2</sub> Emissions Using a Commercial-Scale Fluidized Bed Gasifier
Biomass gasification, as a thermochemical method, has attracted interest due to the growing popularity of biofuel production using syngas or pure hydrogen. Additionally, this hydrogen production method, when integrated with CO<sub>2</sub> capture, may have negative CO<sub>2</sub...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-11-01
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| Series: | Energies |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1073/17/22/5591 |
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| Summary: | Biomass gasification, as a thermochemical method, has attracted interest due to the growing popularity of biofuel production using syngas or pure hydrogen. Additionally, this hydrogen production method, when integrated with CO<sub>2</sub> capture, may have negative CO<sub>2</sub> emissions, which makes this process competitive with electrolysis and coal gasification. This article presents the results of process and economic analyses of a hydrogen production system integrated with a commercial, fluidized-bed solid fuel gasification reactor (SES technology—Synthesis Energy Systems). With the use of a single gasification unit with a capacity of 60 t/h of raw biomass, the system produces between 72.5 and 78.4 t/d of hydrogen depending on the configuration considered. Additionally, assuming the CO<sub>2</sub> emission neutrality of biomass processing, the application of CO<sub>2</sub> capture leads to negative CO<sub>2</sub> emissions. This allows for obtaining additional revenue from the sale of CO<sub>2</sub> emission allowances, which can significantly reduce the costs of hydrogen production. In this analysis, the breakthrough price for CO<sub>2</sub> emissions, above which the hydrogen production costs are negative, is USD 240/t CO<sub>2</sub>. |
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| ISSN: | 1996-1073 |