Hydrogen purification devices

A hydrogen purification device, comprising:

• first and second end frames including:
• an input port capable of receiving a mixed gas stream containing hydrogen gas and other gases;
• an output port capable of receiving a permeate stream containing at least one of a greater concentration of hydrogen gas and a lower concentration of the other gases than the mixed gas stream;
• and
• a byproduct port capable of receiving a byproduct stream containing at least a substantial portion of the other gases;
• at least one hydrogen-selective membrane disposed between and secured to the first and second end frames, the at least one hydrogen-selective membrane having a feed side and a permeate side, at least part of the permeate stream being formed from the portion of the mixed gas stream that passes from the feed side to the permeate side, with the remaining portion of the mixed gas stream, which remains on the feed side, forming at least part of the byproduct stream;
• and
• a plurality of frames disposed between the first and second end frames and the at least one hydrogen-selective membrane and secured to the first and second end frames, the plurality of frames including a feed frame disposed between the at least one hydrogen-selective membrane and one of the first and second end frames, the feed frame including:
• a planar perimeter shell,
• an open region surrounded by the perimeter shell, the open region being in fluid communication with input apertures of other frames of the plurality of frames, the input apertures collectively forming at least one input conduit, and the open region and the at least one input conduit capable of receiving at least a portion of the mixed gas stream,
• at least one output aperture in the perimeter shell, the at least one output aperture being distinct and spaced from the open region and forming at least one output conduit with corresponding output apertures of other frames of the plurality of frames, and the at least one output conduit capable of receiving at least part of the permeate stream, and
• at least one elongate hole distinct and spaced from the open region and the at least one output aperture, the at least one elongate hole being disposed between the open region and the at least one output aperture, and the at least one elongate hole being capable of receiving a portion of the mixed gas stream that leaks from the open region or the at least one input conduit.