Gas separation: apparatus – Apparatus for selective diffusion of gases
Reexamination Certificate
2005-10-11
2005-10-11
Spitzer, Robert H. (Department: 1724)
Gas separation: apparatus
Apparatus for selective diffusion of gases
C095S056000, C096S007000, C096S011000, C422S211000
Reexamination Certificate
active
06953497
ABSTRACT:
Hydrogen purification devices, 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. The device components that are formed from materials having similar or the same coefficients of thermal expansion as the at least one membrane and/or which are formed from an alloy comprising nickel and copper. In some embodiments, these components include at least a portion of a support for the at least one membrane, and in some embodiments, these components include at least a portion of the enclosure.
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English-language abstract of Japanese Pa
Edlund David J.
Hill Charles R.
Pledger William A.
Studebaker R. Todd
IdaTech LLC
Kolisch & Hartwell, P.C.
Spitzer Robert H.
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