A molten carbonate high temperature fuel cell deep-embedded carbon capture enhancement system

Abstract

The application belongs to the technical field of energy saving and emission reduction and flexibility reconstruction of large-scale thermal power plants, and discloses a molten carbonate high-temperature fuel cell deeply embedded carbon capture and efficiency increasing system, which comprises a flue gas deep purification and component optimization subsystem, an MCFC cathode air inlet step heating subsystem, a molten carbonate fuel cell stack, an anode tail gas treatment and CO2 capture subsystem, a waste heat deep step recovery subsystem and the like; the flue gas deep purification and component optimization subsystem is used for performing end fine treatment on original flue gas treated by the original environmental protection island of the power plant; the MCFC cathode air inlet step heating subsystem is responsible for heating the low-temperature flue gas after deep purification to the operating temperature required by the MCFC stack; and the anode tail gas treatment and CO2 capture subsystem is used for treating anode exhaust generated by the fuel cell stack. Through multi-dimensional deep embedding design, the molten carbonate fuel cell system is organically integrated into the existing framework of the large-scale coal-fired power plant, and a comprehensive efficiency increasing system with high material and energy efficient internal circulation is formed.

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