|
|||||
|
|
Novel zirconia-supported catalysts for low-temperature oxidative steam reforming of ethanol |
|
| Authors: | Jia-Lin Bi Yeh-Yeau Hong Chia-Chan Lee Chuin-Tih Yeh Chen-Bin Wang |
| Affiliation: | aDepartment of Applied Chemistry, Chung Cheng Institute of Technology, National Defense University, Tahsi, Taoyuan 33509, Taiwan, ROC bDepartment of Chemical Engineering and Materials Science, Yuan Ze University, Chungli, Taoyuan, Taiwan, ROC |
| Abstract: | Three zirconia-supported platinum group metal (Pt, Ru and Pt–Ru) catalysts were prepared by impregnation. The activity of these catalysts toward the oxidative steam reforming of ethanol (OSRE) was examined in a fixed-bed reactor in the temperature range of 260–380 °C. The catalysts were characterized by X-ray diffraction (XRD), temperature-programmed reduction (TPR), transmission electron microscopy (TEM) and nitrogen adsorption at −196 °C. Activity results indicated that the optimized experimental conditions involved a reforming temperature of close to 300 °C and the molar ratios of O2/EtOH and H2O/EtOH of 0.44 and 4.9, respectively. An ethanol conversion (CEtOH) approaching 100% and a hydrogen yield (YH2) exceeding 3.0 mole/mole ethanol were noticed at 280 °C over all the catalysts. Among these catalysts, the Pt–Ru/ZrO2 catalyst was an excellent OSRE catalyst at low temperature. The maximum YH2 was 4.4 and the CO distribution was 3.3 mol% at 340 °C. |
| Keywords: | Ethanol Oxidative steam reforming PEMFCs |
| 本文献已被 ScienceDirect 等数据库收录！ | |