Thermal power plant

In a thermal power plant comprising at least one thermal prime mover, a supercharged gas generator for generating hot pressurized producer gas from a sulphur-containing coal, said producer gas after separation of fly ash and sulphur being utilized as the fuel for the power plant and which further includes coupled air compressor and gas turbine units, said compressor unit serving to compress air and deliver it to said gas generator, and said gas turbine unit being driven by the hot pressurized and unburned producer gas from the outlet of said gas generator, the improvement which comprises means provided directly in the flow path of the hot pressurized producer gas at the outlet of said gas generator for injecting a reagent into the hot gas which chemically binds the sulphur, a first separator of the centrifugal type located in the path of the hot pressurized producer gas following said reagent injection means and ahead of said gas turbine for separating out fly ash and sulphur bound reagent and a second centrifugal separator structurally integrated with said gas turbine and which is comprised of a spiral entry section at the intake side of said turbine ahead of and a multiplicity of slots in the turbine casing after the first row of blading on the turbine rotor which provides a further centrifuging affect upon and removal of any remaining fly ash and sulphur bound reagent in the gas.