Patent ID: 6199368
Filing Date: 2001-03-13
Classification: F02C,F23D,F23R,Y02E

Abstract:
A coal gasification combined cycle power generation plant including a gas turbine system, a fuel supply system, an air supply system and an exhaust gas system, which are operatively connected to each other,said gas turbine system including a combustor provided with means for selectively burning a coal gasification fuel obtained by gasifying a coal and a liquid fuel atomized by an atomization air and a gas turbine to which a combustion gas generated in the combustor is supplied, said combustor being provided with a fuel nozzle, a liner disposed inside the combustor and a combustion air passage formed between the liner and an outer casing of the combustor,said fuel supply system being provided with a liquid fuel supply passage for the combustor through the fuel nozzle, an atomization air supply passage for the combustor through the fuel nozzle and a coal gasification fuel supply passage for the combustor through the fuel nozzle, all of said supply passages being arranged so as to be adjacent to each other,said atomization air supply passage being provided with an outlet portion to which a branching outlet port for injecting the atomization air toward an outlet portion of the coal gasification supply passage is formed.