System and method for producing gas hydrate

A system for producing gas hydrate comprising:

• a pump having a main pump inlet, at least one secondary pump inlet and a pump outlet wherein the pump is a multiphase multistage pump, wherein the main pump inlet is configured to receive a first fluid comprising water in liquid state at ambient pressure or pre-pressurized and to deliver it to an initial stage of the pump, wherein a first secondary pump inlet is configured to receive a second fluid comprising a substance in gas state to form the hydrate of at a pressure higher than ambient pressure or pre-pressurized and to deliver it to an intermediate stage of the pump wherein the pump outlet is configured to deliver a third fluid comprising the water and the substance to form the hydrate of at a predetermined pressure which is higher than the pressure of water at ambient pressure or pre-pressurized;
• a reactor having a reactor inlet and at least one reactor outlet, wherein the reactor inlet is fluidly coupled to the pump outlet so to receive the third fluid, wherein the reactor is configured to generate gas hydrate starting from the third fluid and deliver a fourth fluid comprising gas hydrate, unreacted substance and/or water at a first reactor outlet,
• a separator having a separator inlet a main separator outlet, and a secondary separator outlet wherein the separator inlet is fluidly coupled to the first reactor outlet so to receive the fourth fluid, wherein the separator is configured to supply unreacted substance and/or water to the secondary separator outlet at a pressure higher than ambient pressure and to supply gas hydrate at the main separator outlet;
• wherein the secondary separator outlet is fluidly coupled to the first secondary pump inlet.