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EUBCE 2024 - Elena ROZZI - High Efficiency and Zero Emissions Biogas-to-Power: Solid Oxide Fuel Cells and Advanced Biogas Cleaning

High Efficiency and Zero Emissions Biogas-to-Power: Solid Oxide Fuel Cells and Advanced Biogas Cleaning

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Anaerobic digestion for biogas and biomethane production

Biogas upgrading and cleaning

High Efficiency and Zero Emissions Biogas-to-Power: Solid Oxide Fuel Cells and Advanced Biogas Cleaning

Short Introductive summary

This study explores the viability of Solid Oxide Fuel Cells (SOFCs) for small to large-scale biogas plants, emphasizing their superior energy conversion efficiency (55%) and lower emissions. Biogas-SOFC systems, crucial for on-site heat and electricity generation, face challenges in contaminants like hydrogen sulfide. A mathematical adsorption model is used for a techno-economic assessment, evaluating biogas cleaning impact on the levelized cost of electricity (LCOE) for 3-kW and 100-kW SOFC applications. Results indicate Norit-RGM3 activated carbon’s efficacy for H2S removal. For a 3-kW plant, cleaning unit costs significantly affect LCOE, while for a 100-kW plant, SOFC pricing dominates, making the lead-and-lag layout economically favorable. Overall, biogas-SOFC systems demonstrate substantial potential for efficient and sustainable renewable energy generation at various scales.

Presenter

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Elena ROZZI

Politecnico di Torino, Energy Dpt., ITALY

Presenter's biography

Ph.D. Candidate in Energetics, with a primary focus on hydrogen storage, energy systems optimization, and experimental tests on porous adsorbent materials for designing and engineering a purification unit to remove sulphur-based compounds for feeding fuel cells.

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Co-authors:

E. Rozzi, Politecnico di Torino, ITALY
M. Gandiglio, Politecnico di Torino, ITALY
A. Lanzini, Politecnico di Torino, ITALY
M. Santarelli, Politecnico di Torino, ITALY

Session reference: 4DO.1.4