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Study on the Performances of Iron Ore Catalysts on SCR of NOx With NH3 at Low-Temperature
Pages: 811-815
Year: Issue:  4
Journal: Journal of Engineering Thermophysics

Keyword:  iron oreselective catalytic reduction(SCR)low-temperatureSO 2;
Abstract: The effects of catalysts prepared from different calcined iron ores on low-temperature selective catalytic reduction of NO was studied in this paper.The research produced following two key findings:The active ingredient of the hematite is α-Fe2O3,and the NO conversation using this iron ore as catalyst is over 90% at 240300℃.The main active ingredients of the calcined manganese ore are Mn2O3 and Fe2O3,and the catalyst prepared from this iron ore exhibits high and stable catalytic activity at low-temperature.Furthermore,the NO conversation of the manganese ore catalyst calcined at 450℃ can maintain more than 99% at 90270℃ and show high SO2 durability for the SCR reaction.Hence,it is a new kind of catalyst with high efficiency for low-temperature selective catalytic reduction of NO with NH3.
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