This paper examines two coal-based hybrid configurations that employ separated anode and cathode streams for the capture and compression of CO2⁠. One configuration uses a standard Brayton cycle, and the other adds heat recuperation ahead of the fuel cell. Results show that peak efficiencies near 55% are possible, regardless of cycle configuration, including the cost in terms of energy production of CO2 capture and compression. The power that is required to capture and compress CO2 is shown to be approximately 15% of the total plant power.

Issue Section:
Research Papers
Keywords:
Brayton cycle, electrochemical electrodes, fuel cell power plants, gas turbine power stations, hybrid power systems
Topics:
Anodes, Brayton cycle, Carbon capture and storage, Coal, Fuel cells, Fuels, Gas turbines, Heat, Pressure, Solid oxide fuel cells, Syngas, Hybrid power systems, Carbon dioxide, Compression, Temperature, Cycles, Flow (Dynamics), Oxygen, Fuel gasification
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