Abstract: “A hydrogen gas generation system, and process for the electrocatalytic production of hydrogen gas” A hydrogen gas generator system comprises an electrolysis reactor stack adapted to perform electrolysis on an electrolyte solution and generate a mixture of electrolyte solution and oxygen and hydrogen gas, a separator configured to receive from the reactor stack the mixture of electrolyte solution and oxygen and hydrogen gas, and separate the oxygen and hydrogen gas mixture from the electrolyte solution, and a drying system configured to receive the mixture of oxygen and hydrogen gas and remove water and impurities contained within the water from the mixture of gasses. A gas separation system is configured to expose the at least partially dried gas mixture to cryogenic temperatures to distil the oxygen out of the mixture as non-gaseous oxygen to leave purified hydrogen gas, and a storage system is provided for storing the purified hydrogen as a gas or a liquid.

Abstract: A hydrogen gas generator system comprises a reactor stack adapted to perform electrolysis on water in an electrolyte solution, the reactor stack comprising a plurality of spaced apart electrode plates and electrolyte solution disposed between the plates, each plate having an upper outlet aperture and a lower inlet aperture to allow movement of electrolyte solution across the plates. A separator is configured to receive a mixture of gas and electrolyte solution from a top of the reactor stack and separate the gas from the electrolyte solution. A gas outlet configured to remove gas from the separator, and an electrolyte solution inlet configured to return electrolyte solution from the separator to a bottom of the reactor stack.