NO REDUCTION BY AL2O3-SUPPORTED RHODIUM, PALLADIUM, AND PLATINUM .2. EFFECTS OF SO2 POISONING
NO REDUCTION BY AL2O3-SUPPORTED RHODIUM, PALLADIUM, AND PLATINUM .2. EFFECTS OF SO2 POISONING
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DOI：
10.1021/ef00009a011
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发表时间：
1988-05-01
期刊：
影响因子：
5.3
通讯作者：
STENGER, HG
中科院分区：
文献类型：
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作者：
HEPBURN, JS;STENGER, HG
背景技术人们对控制人造氮氧化物的排放有着强烈且持续的兴趣。 1 目前的技术通过在 400°C 以上的温度下使用负载型金属氧化物催化剂进行选择性催化还原来实现这种控制。2 未来的应用需要能够在低于 200°C 的温度下还原 NO* 的低温催化剂。这是所希望的，因为待决的立法将要求对现有的燃烧设施进行 NO* 控制改造。在改造安装中，催化剂装置最简单且可能最具成本效益的位置将位于烟气烟囱处或附近。通过在烟气温度下使用贵金属进行催化还原，可以实现出色的 NO* 去除效果。 1-3然而，尚不确定在如此较低的温度下，SO2 对贵金属有何影响。
Background There is a strong and continued interest to control emissions of man-made oxides of nitrogen. 1 Current technology accomplishes this control by selective catalytic reduction using supported metal oxide catalysts at temperatures above 400 C. 2 Future applications require a low temperature catalyst capable of reducing NO* at tem-peratures below 200 C. This is desired since pending legislation would require retrofitting existing combustion facilities with NO* control. The simplest and probably most cost effective locationfor the catalyst unit, in retrofit installations, will be at or near the flue gas stack. Excellent NO* removal can be achieved by catalytic reduction using noble metals at stack gas temperatures. 1-3However, it is uncertain what, effect S02 will have on noble metals at these lower temperatures.