Importance

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Abstract

Hydrogen-producing fuel processing systems, hydrogen purification membranes, hydrogen purification devices, and fuel processing and fuel cell systems that include hydrogen purification devices. In some embodiments, the fuel processing systems and the hydrogen purification membranes include at least one metal membrane, which is at least substantially comprised of a palladium alloy. In some embodiments, the membrane is formed from an alloy of palladium and gold and which contains trace amounts of carbon, silicon, and/or oxygen. In some embodiments, the membranes form part of a hydrogen purification device that includes an enclosure containing a separation assembly, which is 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. In some embodiments, the membranes and/or purification device purifies a mixed gas stream from a hydrogen-producing fuel processor and/or the product stream from a coal gasification process.

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First Claim