Demonstration Test of Dioxin Suppression Using an Iron Oxide Catalyst at Intermittently-Operated Incinerator for Municipal Solid Waste

概要

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Combustion experiments with the injection of an iron oxide catalyst using an intermittently-operated and mechanical batch-type incinerator for municipal solid waste were carried out. As a result, it was observed that the oxide injection had a notable suppressive effect on dioxin formation and the removal function of hydrogen chloride was highly promoted by the combination of calcium hydroxide and the catalyst.<BR>The dioxins in combustion flue gas decreased to 20-30% of the quantity of the formation without the iron oxide catalyst, and the iron oxide catalyst decreased the total quantity of dioxins emitted from the incinerator, including fly ash.<BR>Because the formation of iron chlorides has a strong influence on dioxin formation, the possibility of the formation of iron chlorides from the iron oxide catalyst was studied thermodynamically.
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