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. 2022 Jul 4;25(8):104724. doi: 10.1016/j.isci.2022.104724

Assumption for the techno-economic analysis of the electrified ammonia plant

Parameter Value
Global economic assumptions

Currency conversion rate [USD/CAD] 0.754
Nominal interest rate 10%

Ammonia plant specification

Ammonia designed output [kg/s] 10
Total conversion (for both H2 and N2) 98%
Plant life [years] 20
Plant capacity factor 0.67

Electrolyzer

Efficiency 0.6 (based on LHV)
Energy consumption [kWh/kg H2] 55.6
Water conversion ratio 100%

Air separation unit (ASU)

Energy consumption [kWh/kg N2] 0.421 (Aneke and Wang, 2015)

Ammonia reactor
Energy consumption [kWh/kg NH3] 0.778

Operational cost

Electricity cost [US$(2018)/MWh] 13.8
Process water cost [US$(2018)/m3] 2.15 (City of Toronto, 2020)
Maintenance cost 5% of initial CAPEX per annum