Fe2O3,as a denitrification catalyst,was prepared by separating solid phase from solid waste rolling sludge by calcination,the physicochemical properties of the catalyst were characterized by X-ray diffraction,NH3 programmed temperature desorption and H2 programmed temperature reduction,and its ammonia-selecitve catalytic reduction performance of nitrogen oxides(NOx)was investigated.The results showed that the catalyst(H-450)prepared under 450 ℃ air calcination had the best denitrification activity at the temperature range 300-400 ℃,and the NO,conversion rate was over 85％.H-450 mainly exhibited γ-Fe2O3 active crystal form,and had abundant low-temperature reducible iron species and B acid,so it had high activity.The results of anti-SO2 and anti-H2O toxicity tests showed that the toxic effects of both 10％(φ)H2O and 100 μL/L SO2 were more serious than those of 10％(φ)H2O or 100 μL/L SO2 alone.
rolling oil sludgereduction of nitrogen oxideFe2O3crystal formcatalyst
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