| 초록 |
Cylinder shape filter media consisted at copper manganese oxide catalyst was prepared using pellet extruder, and their CO removal efficiency was investigated. In order to fabricate porous filter media, copper-manganese oxide powder prepared by a redox-precipitation method was mixed with inorganic filler such as porous silica and binder like colloidal silica. Then the mixture was extruded through dice with pin-hole diameter of 3.0 mm, followed by drying and heating at 200 ~ 600 ℃. A typical pellet-type filter media exhibited specific surface area (SBET = 560 m2/g), pore volume (Vtot = 0.89 mL/g), apparent density (0.7 g/cm3), and showed excellent CO removal activity at room temperature. |
