A gas turbine system, comprising: a gas turbine engine comprising a combustor having a fuel nozzle fluidly coupled to a liquid fuel line of a liquid fuel circuit; a steam purge system to which the liquid fuel circuit is fluidly coupled, said steam purge system comprising: a water supply; a gas supply comprising an atomizing module and a compressor; an ejector, comprising: an outer wall extending circumferentially about a flow path, wherein the outer wall comprises a throat section along the flow path, and a diverging section downstream from the throat section along the flow path; a gas inlet configured to supply a gas from the gas supply into the flow path; a water inlet configured to supply water from the water supply into the flow path, wherein the ejector is configured to produce steam in response to mixing of the water and the gas along the flow path, wherein the compressor is configured to output compressed gas with a sufficient pressure and temperature to convert the water to steam in the ejector without any additional heat sources; a controller configured to control flows of the gas and the water to produce the steam for a steam purge of the liquid fuel circuit. a gas turbine engine comprising a combustor having a fuel nozzle fluidly coupled to a liquid fuel line of a liquid fuel circuit; a steam purge system to which the liquid fuel circuit is fluidly coupled, said steam purge system comprising: a water supply; a gas supply comprising an atomizing module and a compressor; an ejector, comprising: an outer wall extending circumferentially about a flow path, wherein the outer wall comprises a throat section along the flow path, and a diverging section downstream from the throat section along the flow path; a gas inlet configured to supply a gas from the gas supply into the flow path; a water inlet configured to supply water from the water supply into the flow path, wherein the ejector is configured to produce steam in response to mixing of the water and the gas along the flow path, wherein the compressor is configured to output compressed gas with a sufficient pressure and temperature to convert the water to steam in the ejector without any additional heat sources; a controller configured to control flows of the gas and the water to produce the steam for a steam purge of the liquid fuel circuit. a water supply; a gas supply comprising an atomizing module and a compressor; an ejector, comprising: an outer wall extending circumferentially about a flow path, wherein the outer wall comprises a throat section along the flow path, and a diverging section downstream from the throat section along the flow path; a gas inlet configured to supply a gas from the gas supply into the flow path; a water inlet configured to supply water from the water supply into the flow path, wherein the ejector is configured to produce steam in response to mixing of the water and the gas along the flow path, wherein the compressor is configured to output compressed gas with a sufficient pressure and temperature to convert the water to steam in the ejector without any additional heat sources; an outer wall extending circumferentially about a flow path, wherein the outer wall comprises a throat section along the flow path, and a diverging section downstream from the throat section along the flow path; a gas inlet configured to supply a gas from the gas supply into the flow path; a water inlet configured to supply water from the water supply into the flow path, wherein the ejector is configured to produce steam in response to mixing of the water and the gas along the flow path, wherein the compressor is configured to output compressed gas with a sufficient pressure and temperature to convert the water to steam in the ejector without any additional heat sources; a controller configured to control flows of the gas and the water to produce the steam for a steam purge of the liquid fuel circuit.