초록 ▼

A fuel cell power plant comprising a fuel cell employing a molten carbonate as an electrolyte, a reformer for reforming fuel into a reactive gas to be supplied into the anode of the cell, an expansion turbine connected to a compressor, a combustor for burning a gas exhausted from the anode and intro

A fuel cell power plant comprising a fuel cell employing a molten carbonate as an electrolyte, a reformer for reforming fuel into a reactive gas to be supplied into the anode of the cell, an expansion turbine connected to a compressor, a combustor for burning a gas exhausted from the anode and introducing the combustion gas into the cathode of the fuel cell along with a gas compressed by the compressor, and a waste heat recovery system. The power plant is characterized by the provision of another combustor on the passage through which cathode exhaust gas is sent from the cathode to the turbine and a passage for leading a part of the anode exhaust gas to the combustor, whereby unburned gas, included in the anode exhaust gas, is burned with the cathode exhaust gas supplied as oxygen source so that the temperature of the turbine driving gas is raised, as a result, the overall thermal efficiency of the power plant increases.

대표청구항 ▼

A fuel cell power plant having a fuel cell containing an electrolyte of molten carbonate, a fuel gas supplying apparatus adapted to supply the anode of said fuel cell with a reactive gas, a compressor to supply the cathode of said fuel cell with compressed air, a combustor to burn the exhaust gas fr

A fuel cell power plant having a fuel cell containing an electrolyte of molten carbonate, a fuel gas supplying apparatus adapted to supply the anode of said fuel cell with a reactive gas, a compressor to supply the cathode of said fuel cell with compressed air, a combustor to burn the exhaust gas from said anode and to supply the burned exhaust gas to the cathode, a turbine adapted to be supplied with the exhaust gas from said cathode through a cathode exhaust gas passage and adapted to drive said compressor and a generator, and a waste heat recovery apparatus adapted to supply the fluid after heat exchange with the exhaust gas from said turbine to said fuel gas supplying apparatus, characterized by comprising combustion means provided on said cathode exhaust gas passage and an anode exhaust gas supply passage to supply, as a fuel, the anode exhaust gas from said anode to said combustor, whereby the anode exhaust gas is burned with the cathode exhaust gas.