コークスの燃焼により発生する NO ガスの鉄鉱石焼結ベッド内除去反応

概要

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Since equipment, built to eliminate the NOx gas in the off gas of iron ore sinter plant, is huge and expensive, it is desirable that a more simple and economical method to eliminate the NO gas is established. The method to eliminate the NO gas near the coke in the iron ore sinter bed has been studied. As a basic study on NO elimination reaction, the reaction characteristics between NO gas and the heated iron oxide at each oxidation grade or calcia-iron oxide compound under the atmosphere with or without CO/CO_2 have been investigated. It became clear that the iron oxide with lower oxidation grade accelerates to decrease the NO gas concentration in the off gas and that the co-existence CO gas also decreases it with the effect of lowering the oxidation grade of iron oxide.
社団法人日本鉄鋼協会の論文
1994-04-01