NOVELTY - The installation for producing a gas mixture enriched in hydrogen through adsorption separation unit using a circuit containing adsorbent bottles/columns (3) working in alternative production/regeneration cycles and controlling units (2, 4) that are provided by means of electric supply. The electric supply has a proton exchange membrane fuel cell (5) intended to fed in air and carburize from the fuel source. The fuel cell is functioning with a fuel made up of hydrogen gas or gas mixture rich in hydrogen.    USE - Useful for producing a gas mixture enriched in hydrogen and a gas effluent from gaseous flow comprising hydrogen (claimed).    ADVANTAGE - The installation provides power supply to the electric transformer according to different power supplies from one network area to other.    DETAILED DESCRIPTION - The installation for producing a gas mixture enriched in hydrogen through adsorption separation unit using a circuit containing adsorbent bottles/columns (3) working in alternative production/regeneration cycles and controlling units (2, 4) that are provided by means of electric supply. The electric supply has a proton exchange membrane fuel cell (5) intended to fed in air and carburize from the fuel source. The fuel cell is functioning with a fuel made up of hydrogen gas or gas mixture rich in hydrogen. A fraction of the gas mixture rich in hydrogen produced by the installation directly feeds the fuel entry of the pile so that the installation constitutes a source of fuel for the pile. The gas purification mixture is produced by the installation located on upstream entry by carburizing fuel cell such as means of chemisorption. The fuel source is made up of bottles of pressurized hydrogen gas to connect at the fuel entry of the pile. The controlling units have a cabinet such as sensors and valves, and a body of supervision such as computer/analogue. A box of input/output is located at a level of the circuit of the installation and electrically connected to the cabinet. The fuel cell is laid out near the box of input/output.    DESCRIPTION OF DRAWING(S) - The diagram shows the installation for producing the gas mixture enriched in hydrogen.    Controlling units (2, 4)    Adsorbent bottles/columns (3)    Proton exchange membrane fuel cell (5)    Container. (6)