期刊
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
卷 57, 期 43, 页码 14607-14616出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.iecr.8b02447
关键词
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资金
- EPSRC-Siemens Industrial CASE Studentship
- EPSRC [1658940] Funding Source: UKRI
Ammonia production currently contributes almost 11% of global industrial carbon dioxide emissions, or 1.3% of global emissions. In the context of global emission targets and growing demand, decarbonization of this process is highly desirable. We present a method to calculate a first estimate for the optimum size of an ammonia production plant (at the process level), the required renewable energy (RE) supply, and the levelized cost of ammonia (LCOA) for islanded operation with a hydrogen buffer. A model was developed to quantitatively identify the key variables that impact the LCOA (relative to a +/- 10 GBP/tonne change in LCOA): levelized cost of electricity (+/- 0.89 GBP/MWh), electrolyzer capital expenditure (+/- 65 GBP/kW), minimum Haber-Bosch (HB) load (+/- 12% of rated power), maximum rate of HB load ramping, and RE supply mix. Using 2025/2030 estimates results in a LCOA of 588 GBP/tonne for Lerwick, Scotland. The application of the model will facilitate and improve the production of carbon-free ammonia in the future.
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