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Direct decomposition of NO x in the presence of oxygen was investigated over a series of Fe–Mn/H-beta catalysts with Mn/Fe=1 at temperature range from 523 to 773K. When Mn is incorporated to Fe/H-beta, NO x conversion is improved, and the active temperature window is lowered. 5%Fe–5%Mn/H-beta exhibits the highest activity among Fe–Mn/H-beta catalysts with Mn/Fe=1. Neither O 2 ...
The effect of MgO addition on SO 2 tolerance of Ag/Al 2 O 3 for the CH 4 -SCR was investigated. MgO addition significantly decreases the active temperature window of NO x conversion, and promotes the SO 2 resistance of Ag/Al 2 O 3 at low temperature range of 573–673K. Silver oxide particles are well dispersed and large silver crystals...
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