抄録
Our aim is to reveal the optimum conditions for the design of ethanol steam-reforming reactors. Experiments are carried out using a Cu/ZnO catalyst. Using a plant-scale reactor with well-controlled thermal distributions, the steam reforming at the low temperature is conducted and the reforming gas is analyzed. The main gas components are CH_4, CO, CO_2 and H_2. In addition, there are chiefly three reactions in the ethanol steam reforming; that is, (1) the steam reforming reactions, (2) the metanation reactions and (3) the water gas shift reaction. In comparison with computations based on the thermo-equilibrium theory, it is considered that the metanation reaction has not occurred. Under such assumption, the experiment shows a good agreement with the theory.
