Modelling of the ethanol steam reforming over Rh-Pd/CeO2 catalytic wall reactors

Existing literature data have been used to model the steam reforming of ethanol on catalytic honeycombs coated with Rh-Pd/CeoO(2), which have shown an excellent performance and robustness for the production of hydrogen under realistic conditions. In this article, a fully 3D non-isothermal model is presented, where the reactions of ethanol decomposition, water gas shift, and methane steam reforming have been modelled under different operational pressures (1-10 bar) and temperatures (500-1200 K) at a steam to carbon ratio of S/C = 3 and a space time of W/F between 2.10(-3) and 3 kg h L-liq(-1). According to the modelling results, a maximum hydrogen yield of 80% is achieved at a working temperature of 1150 K and a pressure of 4 bar at S/C = 3. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.