Comparative Assessment of Biomass and Power-to-Gas Processes Integrated with Different Electricity-Driven Gasification Technologies
To develop a biomass and power-to-gas (BPtG) process for renewable electricity storage and sustainable synthetic natural gas (SNG) production, this work investigated five BPtG processes integrated with different electricity-driven gasification technologies based on simulation data. These processes w...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-01-01
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| Series: | Clean Technologies |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2571-8797/7/1/7 |
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| Summary: | To develop a biomass and power-to-gas (BPtG) process for renewable electricity storage and sustainable synthetic natural gas (SNG) production, this work investigated five BPtG processes integrated with different electricity-driven gasification technologies based on simulation data. These processes were evaluated for SNG composition and yield, life-cycle energy and exergy efficiencies, life-cycle carbon emissions, and the equivalent unit production cost. The results show that the energy and exergy efficiencies of SNG from those processes range between 53.1 and 58.6% and 36.4 and 41.1%, respectively. Based on the energy allocation method, the carbon emissions without and with CO<sub>2</sub> capture ranges from 22.0 to 34.8 and from −43.4 to −17.6, respectively, in gCO<sub>2</sub>e/MJ<sub>SNG</sub>. These BPtG processes can produce low-carbon SNG and even achieve negative carbon emissions with CO<sub>2</sub> capture. Both feedstock and electricity costs have significant influences on the profitability of the processes. The BPtG process integrated with resistance heating gasification, plasma-assisted gasification, and moderate water electrolysis are recommended for their compromise of multi-perspective performances. This paper provided the orders of the five processes based on these indicators and recommendations for different applicable scenarios. |
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| ISSN: | 2571-8797 |