PRESSURIZED FLUIDIZED-BED COMBINED-CYCLE ELECTRIC GENERATING SYSTEM

摘要

A pressurized fluidized-bed combined-cycle electric generating system includes an internal circulating fluidized-bed boiler (2) and a gas turbine (56). A fuel such as coal or petro coke is combusted in a fluidized bed under pressure and a combustion gas having high temperature and high pressure produced by a combustion of fuel is introduced into the gas turbine (56) to generate electric energy. The pressurized fluidized-bed combined-cycle electric generating system further includes a high-temperature dust collector (54) for removing dust from the combustion gas, and a controller (TB) for keeping a temperature of the combustion gas at an inlet of the high-temperature dust collector (54) to a given value.