A novel integration of a green power-to-ammonia to power system: Reversible solid oxide fuel cell for hydrogen and power production coupled with an ammonia synthesis unit
| Autor: | Kumar Patchigolla, Jonathon Gillard, Mulako Dean Mukelabai |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Hydrogen
Energy Engineering and Power Technology chemistry.chemical_element 02 engineering and technology 010402 general chemistry 01 natural sciences Modelling Electrolysis law.invention Ammonia production Ammonia chemistry.chemical_compound law Energy transformation RSOFC Power-to-X Waste management Renewable Energy Sustainability and the Environment business.industry Haber process Exhaust gas 021001 nanoscience & nanotechnology Condensed Matter Physics 0104 chemical sciences Renewable energy Fuel Technology chemistry Environmental science Solid oxide fuel cell 0210 nano-technology business |
| Zdroj: | International Journal of Hydrogen Energy. 46:18546-18556 |
| ISSN: | 0360-3199 |
| DOI: | 10.1016/j.ijhydene.2021.02.218 |
| Popis: | Renewable energy is a key solution in maintaining global warming below 2 °C. However, its intermittency necessitates the need for energy conversion technologies to meet demand when there are insufficient renewable energy resources. This study aims to tackle these challenges by thermo-electrochemical modelling and simulation of a reversible solid oxide fuel cell (RSOFC) and integration with the Haber Bosch process. The novelty of the proposed system is usage of nitrogen-rich fuel electrode exhaust gas for ammonia synthesis during fuel cell mode, which is usually combusted to prevent release of highly flammable hydrogen into the environment. RSOFC round-trip efficiencies of 41–53% have been attained when producing excess ammonia (144 kg NH3/hr) for the market and in-house consumption respectively. The designed system has the lowest reported ammonia electricity consumption of 6.4–8.21 kWh/kg NH3, power-to-hydrogen, power-to-ammonia, and power-generation efficiencies of 80%, 55–71% and, 64–66%. |
| Databáze: | OpenAIRE |
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