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Molecules 2016, 21(5), 581;

Supported Pd-Au Membrane Reactor for Hydrogen Production: Membrane Preparation, Characterization and Testing

Institute on Membrane Technology of the Italian National Research Council (TM-CNR), Cubo 17/C, University of Calabria, Rende 87036, Italy
Department of Chemical Engineering, School of Chemical and Petroleum Engineering, Shiraz University, Shiraz 71345, Iran
Department of Energy Resources Engineering, Stanford University, Stanford 94305, CA, USA
Authors to whom correspondence should be addressed.
Academic Editor: Raffaele Molinari
Received: 16 March 2016 / Revised: 20 April 2016 / Accepted: 22 April 2016 / Published: 9 May 2016
(This article belongs to the Special Issue Membrane Catalysis)
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A supported Pd-Au (Au 7wt%) membrane was produced by electroless plating deposition. Permeation tests were performed with pure gas (H2, H2, N2, CO2, CH4) for long time operation. After around 400 h under testing, the composite Pd-Au membrane achieved steady state condition, with an H2/N2 ideal selectivity of around 500 at 420 °C and 50 kPa as transmembrane pressure, remaining stable up to 1100 h under operation. Afterwards, the membrane was allocated in a membrane reactor module for methane steam reforming reaction tests. As a preliminary application, at 420 °C, 300 kPa of reaction pressure, space velocity of 4100 h−1, 40% methane conversion and 35% hydrogen recovery were reached using a commercial Ni/Al2O3 catalyst. Unfortunately, a severe coke deposition affected irreversibly the composite membrane, determining the loss of the hydrogen permeation characteristics of the supported Pd-Au membrane. View Full-Text
Keywords: Pd-Au membrane; methane steam reforming; composite membrane; hydrogen production Pd-Au membrane; methane steam reforming; composite membrane; hydrogen production

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Iulianelli, A.; Alavi, M.; Bagnato, G.; Liguori, S.; Wilcox, J.; Rahimpour, M.R.; Eslamlouyan, R.; Anzelmo, B.; Basile, A. Supported Pd-Au Membrane Reactor for Hydrogen Production: Membrane Preparation, Characterization and Testing. Molecules 2016, 21, 581.

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