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Molecules 2016, 21(5), 581; doi:10.3390/molecules21050581

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

1
Institute on Membrane Technology of the Italian National Research Council (TM-CNR), Cubo 17/C, University of Calabria, Rende 87036, Italy
2
Department of Chemical Engineering, School of Chemical and Petroleum Engineering, Shiraz University, Shiraz 71345, Iran
3
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)
View Full-Text   |   Download PDF [2739 KB, uploaded 9 May 2016]   |  

Abstract

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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