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A hydrogen purification device, components thereof, and fuel processors and fuel cell system containing the same. The hydrogen purification devices include an enclosure that contains a separation assembly adapted to receive a mixed gas stream containing hydrogen gas and to produce a stream that cont

A hydrogen purification device, components thereof, and fuel processors and fuel cell system containing the same. The hydrogen purification devices include an enclosure that contains a separation assembly adapted to receive a mixed gas stream containing hydrogen gas and to produce a stream that contains pure or at least substantially pure hydrogen gas therefrom. The separation assembly includes at least one hydrogen-permeable and/or hydrogen-selective membrane, and in some embodiments includes at least one membrane envelope that includes a pair of generally opposed membrane regions that define a harvesting conduit therebetween and which are separated by a support. The enclosure includes components that are formed from materials having similar or the same coefficients of thermal expansion as the membrane or membranes. In some embodiments, these components include at least a portion of the support, and in some embodiments, these components include at least a portion of the enclosure.

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A hydrogen purification device, components thereof, and fuel processors and fuel cell system containing the same. The hydrogen purification devices include an enclosure that contains a separation assembly adapted to receive a mixed gas stream containing hydrogen gas and to produce a stream that cont

A hydrogen purification device, components thereof, and fuel processors and fuel cell system containing the same. The hydrogen purification devices include an enclosure that contains a separation assembly adapted to receive a mixed gas stream containing hydrogen gas and to produce a stream that contains pure or at least substantially pure hydrogen gas therefrom. The separation assembly includes at least one hydrogen-permeable and/or hydrogen-selective membrane, and in some embodiments includes at least one membrane envelope that includes a pair of generally opposed membrane regions that define a harvesting conduit therebetween and which are separated by a support. The enclosure includes components that are formed from materials having similar or the same coefficients of thermal expansion as the membrane or membranes. In some embodiments, these components include at least a portion of the support, and in some embodiments, these components include at least a portion of the enclosure. apturing each droplet after the droplet has solidified. 12. The method of claim 11, wherein the electric field is at least in part created by a pair of deflection plates, the deflection plates rotating around an axis defined by the capillary stream. 13. The method of claim 11, wherein the electrostatic charge of each of the plurality of droplets is substantially the same. 14. A method for producing highly uniform metallic balls comprising: directing a capillary stream of molten metal from an orifice, wherein a plurality of droplets form from the stream due to capillary stream break-up; imparting an electrostatic charge to at least some of the plurality of droplets; deflecting the plurality of droplets by passing the droplets through a magnetic field, wherein each droplet travels along a path that is different than the path of the adjacent downstream droplet; and capturing each droplet after the droplet has solidified. ix for receiving said vertical flow of filtered air therein and for generating a uniform horizontal flow of the filtered air to said plurality of bays for storing the reticles; and wherein said diffuser assembly comprises a plurality of wedge shaped columns which create parallel storage slots for said bays to maintain and uniformly channel the filtered air therethrough. 8. The system of claim 7 wherein said air circulator includes a filter to supply filtered air to the core of said storage unit. 9. A system according to claim 7, wherein said diffuser assembly comprises at least one cylindrical filter element having a uniformly restrictive filter media and said uniformly restrictive filter acting on said vertical flow of filtered air creates a pressurized air supply internal to said diffuser assembly for generating the uniform horizontal supply of the filtered air to said storage matrix. 10. A system for storing and retrieving reticles in a clean environment comprisin