LEAN PREMIXED COMBUSTION OF UNDILUTED SYNGAS AT GAS TURBINE RELEVANT CONDITIONS: NO{sub}x EMISSIONS AND LEAN OPERATIONAL LIMITS

摘要

The experimental work presented in this paper focuses on the characterization of four syngas mixtures, primarily in terms of NO{sub}x emissions and Lean Blow Out (LBO) limits; these mixtures were selected to simulate various syngas types derived from coal, refinery residues, biomass and co-firing of syngas with natural gas. These fuel mixtures are all of interest for applications in gas-turbine processes for power generation. The experiments were carried out in a High Pressure Test Rig. Preheating of the fuel/air mixture to a temperature of 673 K, inlet bulk velocities between 40 and 80 m/s and operating pressures between 5 and 15 bars have been applied.