Abstract: A pressurized fluidized bed combustion system includes a pressure vessel, a furnace section within the pressure vessel for forming high temperature, high pressure gases and for generating steam, a compressor for providing compressed combustion air for the furnace section, a filter for cleaning the high temperature, high pressure flue gases formed in the furnace section, a gas turbine for generating power from the gases formed in the furnace section and cleaned in the filter, a steam turbine cycle for generating power from the steam generated in the furnace section, a heat recovery section, connected to the steam turbine cycle, for recovering heat from the gases exhausted from the gas turbine and for supplying the heat to feedwater provided for the steam generation in the furnace section, and an inlet duct for the filter. The inlet duct is connected between a gas discharge channel in the furnace section and a gas inlet channel in the filter.

Abstract: A power generation method includes steps of fluidizing a bed of combustible material in a furnace section to combust the combustible material, discharging a flow of high temperature flue gases and fine particulate material entrained therein from the furnace section, introducing the flow of high temperature flue gases and the fine particulate material into a flue gas temperature controller, dividing the flow of high temperature flue gases and the fine particulate material into first and second flows of flue gases in the flue gas temperature controller, decreasing the temperature of the second flow of flue gases in the temperature controller, to provide a cooled flow of flue gases, combining the first flow of flue gases and the cooled flow of flue gases in the temperature controller to provide a recombined flow of flue gases, introducing the recombined flow of flue gases and the fine particulate material entrained therein into a high temperature ceramic filter, measuring the temperature of the hot flue gases an