GAS TURBINE SYSTEM WITH DIFFUSION-FLAME COMBUSTION AND FUEL MIXING TO REDUCE UNDESIRABLE EMISSIONS Russian patent published in 2025 - IPC F02C3/30 F02C3/22 F02C7/22 

FIELD: mechanical engineering.

SUBSTANCE: gas turbine system (1000, 2000, 3000) with compressor section (10) made capable to compress oxidiser flow and providing compressed oxidiser flow in combustion chamber section (20). Combustion chamber section (20) is configured to receive the oxidiser and the fuel gas mixture separately, wherein mixture contains at least fuel gas and inert gas for diffusion-flame combustion of fuel and oxidizer in combustion chamber and for supplying the flue gas stream to turbine section (30) configured to expand the flue gas stream and for discharging the expanded flue gas stream at the turbine outlet. Gas turbine system also has mixing unit (50) configured to mix at least the fuel gas and the inert gas and supply the fuel gas mixture to the combustion chamber section (20) with a mixing ratio depending on the content of flue gas, for example, depending on the measured or predicted content of NO_x, and/or CO and/or CO₂ in the flue gas. Mixing unit (50) is configured to mix at least fuel gas and inert gas under control of control unit (40), which is configured to control the operation of the gas turbine system.

EFFECT: reduced undesirable emissions.

15 cl, 3 dwg