Gas turbine system with diffusion flame combustion and fuel mixing for reducing undesired emissions

• Main Authors: ZUCCA ALESSANDRO, PALMIERI, ROBERTO, BALDINI MASSIMO, LOMBARDI GIORGIO, MILIANI, ALESSANDRO
• Format: Patent
• Language: Chinese; English
• Published: 23.08.2024
• Subjects: AIR INTAKES FOR JET-PROPULSION PLANTS; BLASTING; COMBUSTION APPARATUS; COMBUSTION ENGINES; COMBUSTION PROCESSES; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS; GAS-TURBINE PLANTS; GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGHVELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MECHANICAL ENGINEERING; WEAPONS

A gas turbine system (1000, 2000, 3000) having a compressor section (10) configured to compress a flow of oxidant and to provide the compressed flow of oxidant at a combustor section (20). The combustor section (20) is configured to receive an oxidant and a fuel gas mixture, respectively, comprising at least a fuel gas and an inert gas, for diffusion flame combustion of the fuel and oxidant in the combustion chamber, and to provide a flow of flue gas to the turbine section (30), the turbine section is configured to expand the flow of flue gas and discharge the expanded flow of flue gas at the turbine outlet. The gas turbine system also has a mixing unit (50) configured to mix at least a fuel gas and an inert gas at a mixing ratio dependent on the content of the flue gas, for example dependent on the measured or predicted content of NOx and/or CO and/or CO2 of the flue gas, and to provide the fuel gas mixture at the combustor section (20). The mixing unit (50) is configured to mix at least a fuel gas and an in