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Techno-economic analysis and life cycle assessment for electrochemical ammonia production using proton conducting membrane
- Source :
- International Journal of Hydrogen Energy. 45:721-737
- Publication Year :
- 2020
- Publisher :
- Elsevier BV, 2020.
-
Abstract
- Green ammonia production is facing increasing interest on a global scale as a hydrogen carrier for power generation as well as fertilizer for food production. The conventional Haber-Bosch method for ammonia synthesis is energy demanding, requires high purity hydrogen, and is based on fossil fuels. A preliminary techno-economic model for electrochemical ammonia synthesis at near ambient pressure using feed rates of 32 metric ton/day for hydrogen and 135 metric ton/day for nitrogen is presented in this study. Various pathways using different methods for nitrogen generation and hydrogen production were investigated to gain insight into added energy savings per metric ton of ammonia. Electrochemical synthesis using electrolysis for hydrogen and cryogenic nitrogen was found to be a potentially viable pathway for green ammonia. The profitability metrics including discounted cash flow rate of return, net present value and discounted payback period were estimated to be 8%, $40 MM, and 4–6 years respectively for this pathway. The cost of electricity, conversion rate, and conversion efficiency dominate the tonnage cost of ammonia and were used to assess the feasibility of the model. A life cycle assessment was also conducted to assess the environmental impact of a well to product ammonia process.
- Subjects :
- Waste management
Discounted payback period
Hydrogen
Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology
chemistry.chemical_element
02 engineering and technology
010402 general chemistry
021001 nanoscience & nanotechnology
Condensed Matter Physics
01 natural sciences
0104 chemical sciences
Ammonia production
Ammonia
chemistry.chemical_compound
Hydrogen carrier
Fuel Technology
chemistry
Environmental science
0210 nano-technology
Cost of electricity by source
Life-cycle assessment
Hydrogen production
Subjects
Details
- ISSN :
- 03603199
- Volume :
- 45
- Database :
- OpenAIRE
- Journal :
- International Journal of Hydrogen Energy
- Accession number :
- edsair.doi...........76abc4c327c38623a108463dd50e6609