| 摘要 |
PURPOSE:To maintain purifying performance and hydrogen sulfide controlling performance over a long period of time by coating the surface of the base material of a carrier with a catalyst carrying layer consisting of Fe-Ti double oxide and activated alumina, and supporting a catalytic metal on the supporting layer. CONSTITUTION:The surface of the base material of a carrier is coated with a catalyst carrying layer consisting of Fe-Ti double oxide such as FeTiO2 or FeTiO3 and activated alumina such as gamma-Al2O4 mixed preferably in about 0.005-0.4 weight ratio of the double oxide to the activated alumina. A catalytic metal such as Pt or Rh is then deposited on the catalyst supporting layer. Purifying performance and hydrogen sulfide controlling performance can be maintained over a long period of time. |
