C222 Reforming Efficiency by Ethanol-Steam Reforming using Cu/ZnO/Al2O3 Catalyst

Hydrogen H_2 for fuel-cell power plants is commonly manufactured from hydrogen-rich materials such as hydrocarbons C_nH_m and alcohols C_oH_p(OH)_q, using steam-reforming methods with catalysts. Recently, the authors have investigated the optimum conditions for efficient and endurable steam reforming (Shinoki et al [2011]). In the present study, the authors investigate the optimum conditions as well as Shinoki et al. [2011], especially focusing on both the influences of liquid-hourly space velocity LHSV upon concentrations such as C_ C_ , C_ and C_ and the influence of LHSV. As a result, all the concentrations are close to the theory of Shinoki et al [2011] except for the case at low T_R and high LHSV. To settle the inconsistency of this exceptional case, the authors propose a new theory using some chemical reactions related with acetaldehyde CH_3CHO. Furthermore, the authors discuss the influences of T_R in addition to LHSV.