NOVELTY - A method involving at least one of separating, removing, compressing, and generating hydrogen comprises providing a supply containing hydrogen to a device having anode and/or cathode electrodes comprising non-porous hydrogen permeable electrode, applying an electrical potential to the electrodes, transferring protons through a solid anhydrous proton conducting medium from anode electrode to cathode electrode, and exhausting portion of the supply to anode inlet.    USE - For separating, removing, compressing, and/or generating hydrogen used as zero emission fuel.    ADVANTAGE - The invention provides the advantage of sealing and reducing leakage and/or providing a rigid support for the proton conducting medium. It is capable of efficiently separating, compressing, and generating hydrogen. It overcomes the problem with conventional hydrogen pumps that allow impurities such as nitrogen, argon, carbon dioxide, and carbon monoxide to enter the product gas stream.    DETAILED DESCRIPTION - A method involving at least one of separating, removing, compressing, and generating hydrogen involves providing a supply containing hydrogen to a device comprising an anode electrode, a cathode electrode, a first member for distributing the supply containing hydrogen to the anode electrode from an anode inlet, a second member for collecting a supply of hydrogen separated from the supply containing hydrogen from the cathode electrode, and a solid anhydrous proton conducting medium disposed between the anode electrode and the cathode electrode; applying an electrical potential to the anode electrode and the cathode electrode; transferring protons through the solid anhydrous proton conducting medium from the anode electrode to the cathode electrode; and exhausting at least a portion of the supply to the anode inlet. At least one of the anode electrode and the cathode electrode comprises a non-porous hydrogen permeable electrode.    INDEPENDENT CLAIMS are also included for:    (A) a device for at least one of separating, removing, compressing, and generating hydrogen, comprising an anode electrode, a cathode electrode, a first member for distributing a supply containing hydrogen to the anode electrode from an anode inlet, a second member for collecting a supply of hydrogen separated from the supply containing hydrogen from the cathode electrode, and a solid anhydrous proton conducting medium disposed between the anode electrode and the cathode electrode; and    (B) a hydrogen fuel infrastructure system comprising the above device; a storage tank for storing purified hydrogen from the device; and a reformer for supplying reformate to the device.    At least one of the anode electrode and the cathode electrode comprises a non-porous hydrogen permeable electrode.    DESCRIPTION OF DRAWING(S) - The figure is a cross-sectional view of a hydrogen pump.    anode separator plate or member (42)    cathode separator plate or member (44)    proton conducting electrochemical cell (50)    anode gas diffusion layer (52)    anode electrode (54)    proton conducting medium (55)    cathode gas diffusion layer (56)    cathode electrode (58)