Oxidation catalyst of iron oxide suppressing dioxin formation in polyethylene combustion |
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| Authors: | Tomoyuki Imai Toshiki Matsui Yasuhiko Fujii Tasuku Nakai Suminori Tanaka |
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| Institution: | (1) Toda Kogyo Corporation, 1-4 Meijishinkai, Otake, Hiroshima 739-0652, Japan Tel. +81-8275-9-0083; Fax +81-8275-7-3572 e-mail: Tomoyuki_Imai@todakogyo.co.jp, JP;(2) Okura Industrial Corporation, Marugame, Kagawa 763-8505, Japan, JP |
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| Abstract: | A new iron oxide catalyst, which has a superior oxidation activity in carbon monoxide and polyethylene (PE) combustion, was
synthesized by an aqueous solution reaction. Catalytic oxidation of carbon monoxide over six kinds of hematite obtained from
the goethite was done using a microcatalytic pulse reactor, and the composition of the hematite with the highest oxidation
activity was determined. With the aim of suppressing dioxin formation on combustion, incineration tests of solid wastes in
PE refuse bags with and without the goethite were carried out using a commercial semibatch-type incinerator with a combustion
chamber of 6.2 m3. The result confirmed that the concentration of dioxins in the flue gas decreased considerably when the refuse was incinerated
in PE bags manufactured with goethite.
Received: July 24, 2000 / Accepted: October 18, 2000 |
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| Keywords: | Iron oxide Carbon monoxide Polyethylene combustion Dioxins Incinerator |
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