INTEGRATED GASIFICATION FUEL CELL SYSTEM CAPABLE OF CONTROLLING NITROGENOUS COMPOPUND

摘要

The present invention relates to a fuel cell hybrid power generation system capable of controlling nitrogen oxide. The fuel cell hybrid power generation system comprises a synthetic gas generation part which generates a synthetic gas by incompletely combusting fuel in a gasifier; a fuel cell part which allows the synthetic gas generated in the synthetic gas generation part to enter therein, generates electric power by using chemical substances included in the synthetic gas, and generates high heat capacity gas having heat capacity higher than that of the synthetic gas; and a power generation part which generates electric power by using a turbine driven when the synthetic gas generated in the synthetic gas generation part and compressed air generated by a compressor are combusted in a combustor. The power generation part is connected to the fuel cell part and receives the high heat capacity gas, generated in the fuel cell part at the predetermined temperature or higher at which generation of nitrogen oxide in the combustor is increased, in order to reduce generation of nitrogen oxide by lowering the combustion temperature of the inside of the power generation part. According to an embodiment of the present invention, the fuel cell hybrid power generation system provides the high heat capacity gas, generated in the fuel cell, to the combustor to prevent local increase of the temperature in a combustion chamber. Therefore, the amount of nitrogen oxide generation contained in combusted air can be controlled.