Supported Pd-Au membrane reactor for hydrogen production: Membrane preparation, characterization and testing

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). ISSN 1420-3049

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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.

Item Type:
Journal Article
Journal or Publication Title:
Molecules
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/1600/1605
Subjects:
ID Code:
176108
Deposited By:
Deposited On:
05 Oct 2022 10:00
Refereed?:
Yes
Published?:
Published
Last Modified:
22 Nov 2022 11:50