| 초록 |
FER zeolite has exhibited good performance in skeletal isomerization of n-butene to iso-butene and also for the selective catalytic reduction of NOx using ammonia. However, FER zeolite containing large amount of aluminum has a disadvantage due to rapid deactivation by coke formation. Therefore, the synthesis of high silica FER zeolite has been investigated for prolong catalyst life time and hydrothermal stability. In this work, FER zeolite with different SiO2/Al2O3 ratios of 50-200 was synthesized using pyridine as a structure directing agent. The effect of NaAlO2 concentration and synthesis time on the catalytic properties of the resulting FER zeolite was investigated with XRD, SEM, N2 adsorption, NH3-TPD, and also the methanol to olefin catalytic reaction at 400 ℃ with 1.2 h-1 WHSV. |
