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Showing 1 to 11 of 11 for “"Hydrogen separation"”.
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Thin film Palladium-Ytrium membranes for hydrogen separation
The permeability of hydrogen in thin film Pd-Y composite membranes has been investigated for the first time. Thin (5 µm) Pd-Y films were deposited onto macroporous 316L stainless steel substrates by magnetron sputtering. Prior to deposition, a novel laser melting technique was employed in an …
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Palladium and palladium-copper composite membranes for hydrogen separation
Includes bibliographical references.
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Impact Of Coal Derived Impurities On The Performance Of Hydrogen Separation Membranes
<p>In order to facilitate the use of hydrogen in integrated gasification combined-cycle (IGCC) applications or as a transportation fuel, hydrogen-from-coal technologies that are capable of managing carbon will be needed. Many technologies are under development for the separation of hydrogen from …
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Synthesis and properties of nanostructured metal alloys for hydrogen separation and membrane reaction applications
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1997.
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Development and testing of inorganic membranes for hydrogen separation and purification in a catalytic membrane reactor.
… been identified as the membranes of choice in hydrogen separation and purification processes due to their infinite selectivity to hydrogen when defect-free. Despite their potentials in hydrogen processes, palladium membranes pose challenges in terms of cost and embritllement, which occurs when …
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Studies on Hydrogen Selective Silica Membranes and the Catalytic Reforming of CH₄ with CO₂ in a Membrane Reactor
… and gas transport properties of hydrogen selective silica membranes were studied along with the catalytic reforming of CH₄ with CO₂ (CH₄ + CO z 2 CO + 2 H₂) in a hydrogen separation membrane reactor. The silica membranes were prepared by chemical vapor deposition (CVD) of a thin …
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Composite inorganic membranes for hydrogen reaction, separation and purification.
Silica-alumina composite membranes for hydrogen separation and high temperature chemical reactions were prepared using both conventional and modified dip-coating techniques. These were deposited on commercially available a.-alumina macroporous support of 10 millimetre (mm) outer diameter, 7 mm …
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Untersuchungen zur chemischen Heißgasreinigung bei der Hochtemperaturkohlevergasung
… gaseous alkalis and CO conversion together with hydrogen separation by a high temperature shift catalyst membrane. The removal of alkalis is predominant because condensates of alkali metal salts can demage components in the power plant. Therefore, the essential aim is to keep the alkali …
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System and Reactor Design, and Materials Testing, for Efficient Thermochemical Solar Fuel Production in Temperature/Pressure Swing Redox Cycles
Zero emission fuels such as hydrogen and its carriers are essential for decarbonizing hard-to-electrify sectors like industrial process heat, long-distance transportation and seasonal energy storage. Green hydrogen can also decarbonize chemical processes in the fertilizer, petrochemicals and metal …
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Synthesis and characterization of thermally stable palladium-based composite membranes for high temperature applications
… to lower the leak growth rate, though the hydrogen permeance stability was not improved. The Pd-Pt alloy membrane, despite having a lower hydrogen permeance, had a stable hydrogen flux at higher temperatures. The influence of high temperature annealing (> 640 ºC) on the thermal stability of …
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Fabrication of Ultrathin Palladium Composite Membranes by a New Technique and Their Application in the Ethanol Steam Reforming for H₂ Production
… on a hollow-fiber α-alumina substrate for H₂ separation. The effectiveness of the membranes is demonstrated in the ethanol steam reforming (EtOH SR) reaction in a membrane reactor (MR) for H₂ production. The membrane preparation technique uses an electric-field to uniformly deposit Pd …