DLN Two fuel primary nozzle

The primary nozzles (300) of a Dry Low NO The first gas fuel may be natural gas and the second gas fuel synthesis gas. An outer fuel conduit (301) and an inner fuel conduit (302) are provided to permit by a variation of the fuel split between the two fuel lines effective control of the fuel / air mixing profile, the dynamics of the primary pre-ignition and emission control. The inner fuel conduit (302) can be operated in many gas fuel in a diffusion combustion mode.