Selective catalytic oxidation of NO over iron and manganese oxides supported on mesoporous silica

被引：0
|
作者：
Junfeng Zhang
机构：
来源：
Journal of Natural Gas Chemistry | 2008年 / 03期
关键词：
selective catalytic oxidation of NO; nitrogen monoxide; mesoporous silica; iron; manganese;
D O I：
暂无
中图分类号：
O643.32 [催化反应];
学科分类号：
摘要：
The selective catalytic oxidation (SCO) of NO was studied on a catalyst consisting of iron-manganese oxide supported on mesoporous silica (MPS) with different Mn/Fe ratios. Effects of the amount of manganese and iron, oxygen, and calcination temperature on NO conversion were also investigated. It was found that the Mn-Fe/MPS catalyst with a Mn/Fe molar ratio of 1 showed the highest activity at the calcination temperature of 400 °C. The results showed that over this catalyst, NO conversion reached 70% under the condition of 280 °C and a space velocity of 5000 h-1. SO2 and H2O had no adverse impact on the reaction activity when the SCO reaction temperature was above 240 °C. In addition, the SCO activity was suppressed gradually in the presence of SO2 and H2O below 240 °C, and such an effect was reversible after heating treatment.
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页码：273 / 277 +211
页数：6
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