FIGURE 9 Stability of Cu/ZnO/Ti CMNR in methanol dehydrogenation. (Reaction temperature 360 ℃, gas flux 8 m3·m-2·h-1 through the membrane, one sheet of membrane of thickness 1mm)
The catalytic reaction parameters of methanol dehydrogenation with different catalysts (from literatures and this work), including reaction temperature, TOF , YFA andYH , were illustrated in Table 2. The reportedTOF s ranged from 0.4 mmol·h-1g-1 to 130 mmol·h-1g-1, theYFA and YH both ranged from 0.8 ~ 1.8 mmol·h-1·mm-1, depending on the different reaction temperature and loading amount of catalyst. TheTOF, YFA and YH for methanol dehydrogenation in Cu/ZnO/Ti CMNR developed in this work were much higher than the reported values in literatures. It could be concluded that the Cu/ZnO/Ti CMNR had better catalytic performance for methanol dehydrogenation.
TABLE 2 Catalytic reaction parameters of methanol dehydrogenation with different catalysts