Iulianelli, A. and Alavi, M. and Bagnato, G. and Liguori, S. and Wilcox, J. and Rahimpour, M.R. and Eslamlouyan, R. and Anzelmo, B. and Basile, A. (2016) Supported Pd-Au membrane reactor for hydrogen production: Membrane preparation, characterization and testing. Molecules, 21 (5): 581. ISSN 1420-3049
Full text not available from this repository.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.