The unit was successfully tested for hydrogen production from ethanol steam reforming, achieving pure-hydrogen flowrates up to 110 mLN/min. Reaction yields of 3.1 mol hydrogen generated per mol ethanol in feed and total yields of 1.4 mol H2 permeated per mol ethanol in feed were measured, with maximum hydrogen recuperation of 70 % . We discuss here the influence of the different operation parameters, as temperature, reaction (retentate) pressure, load and/or composition of the feed on the device performance. Temperatures of ca. 650 ¡ãC, retentate pressures of 9-11 bar and water contents in feed slightly over-stoichiometric revealed optimal for the unit operation.