C214 AN ANALYTICAL AND EXPERIMENTAL STUDY OF ETHANOL STEAM REFORMING WITH Cu/ZnO/Al_2O_3 CATALYST(Hydrogen and Reforming-1)

Abstract

In the present study, we reveal the dominant ehemical reactions and the optimum conditions, supposing the design of ethanol steam-reforming reaetors. Experiments are conducted for CulZnOfA1203 catalyst. Using a household-use-scale reactor with well-controlled temperature distributions, we compare experimental results with ehemical-equilibrium theories. As a result, the CulZnOfA1203 catalyst shows rather high performanee at low values of reaction temperature Z This suggests that the CufZnOIA1203 catalyst promotes the ethanol-steam-reforming and water-gas-shift reactions, but does not promote the methanation reaction.Furthermore, we specify the effect of steam-carbon molar ratio sc upon coneentrations such as Gm, Cco2, Cco and CcH4, together with the effect of T upon (]im, Cco2, Cco and CcH4. In addition, we have researched the influence of liquid-hourly spaee velocity LHSV upon the ethanol eonversion JYb2HsoH at in the range of LHSV from O,05 to 1.40h-i, at sc = 3,O and T= 420K, 470K and 520K.