Abstract
This work evaluates the thermodynamic performances of two oxygen separation technologies, Pressure Driven Electrolytic Membranes (PDEM) and Solid Electrolyte Oxygen Pumps (SEOP), focusing on the application to small scale oxygen production. We show that PDEM systems operated with a specific flux of 5 liters of oxygen per minute per square meter of active membrane surface (5 LO2/min-m2) can reach an energy consumption as low as 0.39 kWh/kgO2. In the same conditions with a SEOP, the optimized energy consumptions are 0.52 and 0.49 kWh/kgO2 respectively for atmospheric and pressurized configurations.
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