Author/Authors :
Amirshaghaghi، Paria نويسنده Chemical Engineering Department, Babol University of Technology, P.O. Box 484, 4714871167 Babol, Iran , , Eliassi، Ali نويسنده Chemical Engineering Department, Babol University of Technology, P.O. Box 484, 4714871167 Babol, Iran , , Taghizadeh، Majid نويسنده aDepartment of Chemical Engineering, Babol University of Technology, Box 484,4714871167, Babol, Iran ,
Abstract :
Hydrogen was produced by steam reforming of dimethyl ether (DME) using a physical mixture of commercial HZSM-5 zeolite (for DME hydrolyzing) and Cu/ZnO/Al2O3 (for methanol steam reforming) as a catalyst in a fixed bed reactor. The experiments were performed at atmospheric pressure and in a temperature range from 270 to 310 °C. The effects of feed temperature and gas hourly space velocity (GHSV) between 2420 and 4615 h?1 on DME conversion and H2 and CO concentrations in the gas-phase products were investigated. In addition, the temperature changes along the catalyst bed were measured. The results showed that DME conversion increased with increasing temperature, and also, DME conversion decreased with increasing GHSV. Finally, a homogeneous one-dimensional model was used to model the reactor of hydrogen production by steam reforming of DME. The predicted temperature profile along the catalyst bed and conversion were compared with the experimental data. The model results and experimental data were found to be in good agreement.
