• Title/Summary/Keyword: Manganse oxide

Search Result 1, Processing Time 0.016 seconds

Decomposition of Toluene by γ-Al2O3 Catalysts Impregnated with Transition Metal (전이금속을 함침한 γ-Al2O3 촉매의 Toluene 분해)

  • Choi, Sung-Woo;Lee, Chul-Kyu
    • Journal of Environmental Science International
    • /
    • v.22 no.8
    • /
    • pp.945-951
    • /
    • 2013
  • Alumina-supported catalysts containing different transition metals such as Cu, Cr, Mn, Zn, Co, W were investigated for their activity in the selective oxidation of toluene. Catalytic oxidation of toluene was investigated at atmospheric pressure in a fixed bed flow reactor system over transition metals with $Al_2O_3$ catalyst. The result showed the order of catalytic activities for the complete oxidation of toluene was Mn > Cu> Cr> Co> W> Zn for 5wt.% transition $metals/Al_2O_3$. $Mn/Al_2O_3$ catalysts containing different amount of Mn were characterized by X-ray diffraction spectroscopy for decision of loading amount of metal to alumina. 5 wt.%$Mn/Al_2O_3$ catalyst exhibits the highest catalytic activity, over which the toluene conversion was up to 90% at a temperature of $289^{\circ}C$.