| 초록 |
Dimethyl ether (DME) is scientific and technological interest as a hydrogen source for fuel cells, because it has various advantages such as harmless and using conventional facilities providing LPG whose physical properties is similar to those of DME. The reaction proceeded via a successive two step mechanism: hydration of DME to methanol over solid acids, followed by steam reforming of methanol to produce H2 and CO2 over copper oxide based catalysts. In this study, the catalysts which is appreciate for the producing much H2 and less CO was prepared. γ-Alumina, especially Lewis acid sites for DME hydrolysis into methanol, and active metals such as copper for methanol steam reforming to H2 and CO2 are mixed. Adding Zn to Cu/Al2O3 not only improved H2 production, but also reduced CO production. |
