Methanol Synthesis Over Cu and Cu-Oxide-Containing ZnO/Al2O3 Using Dielectric Barrier Discharge

摘要

Initially developed for more than 20 years ago, the copper over zinc and aluminum oxide $(hbox{ZnO}/hbox{Al}_{2}hbox{O}_{3})$ catalyst system is used for low-pressure methanol synthesis. Recently, the $hbox{Cu}/hbox{ZnO}/ hbox{Al}_{2}hbox{O}_{3}$ (CZA) showed to be active in a dielectric-barrier discharge (low-temperature plasma). In this paper, the investigation on the copper as the active site of the catalyst was discussed on the basis of experimental result and its characterization analysis. The catalyst was attempted to aid the reaction performance of partial oxidation of methane in order to produce methanol. All CZA-based catalysts were successful in increasing methanol selectivity, and the Cu oxide performed better than metallic-copper catalyst.