The aim of this work is to explore the potentiality of a porous stainless steel (PSS) supported Pd-based membrane reactor (MR) for hydrogen production via bio-ethanol steam reforming reaction (BESR). Bio-ethanol may be produced from fermentation of cheese by-product waste, which contains major impurities like acetic acid and glycerol. In this work, a simulated bio-ethanol mixture is utilized and contains besides ethanol and water also acetic acid and glycerol with 1:13:0.18:0.04 molar ratio, directly supplied to the MR. In the overall experimental campaign, BESR reaction is performed at 400 °C and in a reaction pressure range of 8-12 bar (abs.) using both Ni/ZrO2and Co/Al2O3commercial catalysts, packed in the annulus of the membrane reactor. The present study illustrates the influence of the reaction pressure and gas-hour-space-velocity on the MR performances in terms of bio-ethanol conversion, hydrogen recovery factor (HRF), hydrogen permeate purity (HPP) and yield of hydrogen. Furthermore, the effect of the by-products such as acetic acid and glycerol on the MR performances is investigated. In Pd/PSS MR, the best result of this work is obtained at 12 bar and 800 h-1as GHSV and using the Co-based catalyst with around 94% of bio-ethanol conversion, 40% of hydrogen yield and HRF ∼40% with a HPP of 95%. © 2012 Elsevier B.V.
All Science Journal Classification (ASJC) codes
Seelam, P. K., Liguori, S., Iulianelli, A., Pinacci, P., Calabrò, V., Huuhtanen, M., Keiski, R., Piemonte, V., Tosti, S., De Falco, M., & Basile, A. (2012). Hydrogen production from bio-ethanol steam reforming reaction in a Pd/PSS membrane reactor. Catalysis Today, 193(1), 42 - 48. https://doi.org/10.1016/j.cattod.2012.01.008