Production process for hydrogen-enriched slush LNG fuel and device

A method of producing Hydrogen-enriched slush Liquified Natural Gas (LNG) fuel, the method comprising:

• introducing a mixture of gaseous hydrogen (H2) and LNG respectively into heat exchangers to secure required initial pressure and temperature (Pi and Ti), thereby producing a mixed fluid from the mixture,
• supplying the mixed fluid to a plurality of radial inlets of a vortex tube including a vortex chamber disposed inside therein, when the required initial pressure and temperature (Pi and Ti) of the mixed fluid is obtained through heat exchangers,
• recovering and reusing gas discharged to a main tube from the vortex tube installed in a tank after discharging the gas to an outside of the tank, and
• discharging the Hydrogen-enriched slush LNG fuel to a bottom of the tank and further discharging the Hydrogen-enriched slush LNG fuel into a pump installed outside the tank, and supplying the Hydrogen-enriched slush LNG fuel to a fuel line for combustion of an engine.