CRACKING AND SEPARATION OF AMMONIA FUEL

A gas turbine engine includes a cracking device (74) that is configured to decompose an ammonia flow into a flow that contains more hydrogen (H2) than ammonia (NH3), a first separation device (76) that separates hydrogen downstream of the cracking device (74), wherein residual ammonia and nitrogen are exhausted as a residual flow (82). The separated flow contains more hydrogen than ammonia, and nitrogen is exhausted separately as a hydrogen flow (80). A combustor (46) is configured to receive and combust the hydrogen flow (80) from the separation device to generate a gas flow (58). A compressor section (44) is configured to supply compressed air to the combustor (46). A turbine section (48) is in flow communication with the gas flow (58) produced by the combustor (46) and is mechanically coupled to drive the compressor section (44).