Combined cycle thermal power plant, which is coupled to the gasifier and the air circulating fluidized bed boiler

摘要

A combined cycle power generation system is disclosed. The system includes a fluidized bed boiler, a hot separator, a steam turbine system and a gas turbine system. The gas turbine system is provided with a source of high temperature compressed air heated in three stages by a recuperator connected to an output of the gas turbine, an external bed heater connected to the hot separator, and a gas turbine combustor fueled by natural gas and/or coal gas provided by a gasification process.