Removal of Dioxins in Flue Gas from Waste Incinerators by Catalytic Oxidative Process
Removal of dioxins in flue gas from waste incinerators by catalytic oxidative process was investigated. Mono-chlorobenzene (MCB) was used as a model-compound of dioxins in order to study the kinetics of catalytic decomposition. The decomposition of MCB is a first order reaction with respect to the c...
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| Veröffentlicht in: | Journal of the Japan Society of Waste Management Experts 2000/11/30, Vol.11(6), pp.307-313 |
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| container_title | Journal of the Japan Society of Waste Management Experts |
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| creator | Ninomiya, Ichiro Ueda, Kazue Tanaka, Kazumasa Jige, Masanobu Amimoto, Hirotaka Tai, Kazuo |
| description | Removal of dioxins in flue gas from waste incinerators by catalytic oxidative process was investigated. Mono-chlorobenzene (MCB) was used as a model-compound of dioxins in order to study the kinetics of catalytic decomposition. The decomposition of MCB is a first order reaction with respect to the concentration of MCB and the reaction rate was 1.4 times higher at 200°C than at 170°C. The durability test of the catalyst using the real flue gas from a municipal waste incinerator was performed. Dioxins were completely decomposed at the initial stage, and the decomposition efficiency of dioxins after 16, 500 hours was still 95% in TEQ. The influences of reaction temperature and linear velocity on the decomposition of dioxins were clarified. The high decomposition rate of dioxins was maintained in the temperature range of 170-240°C. The decomposition reaction of dioxins was well interpreted by the theoretical calculations based on the mixing diffusion model. |
| doi_str_mv | 10.3985/jswme.11.307 |
| format | Article |
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Mono-chlorobenzene (MCB) was used as a model-compound of dioxins in order to study the kinetics of catalytic decomposition. The decomposition of MCB is a first order reaction with respect to the concentration of MCB and the reaction rate was 1.4 times higher at 200°C than at 170°C. The durability test of the catalyst using the real flue gas from a municipal waste incinerator was performed. Dioxins were completely decomposed at the initial stage, and the decomposition efficiency of dioxins after 16, 500 hours was still 95% in TEQ. The influences of reaction temperature and linear velocity on the decomposition of dioxins were clarified. The high decomposition rate of dioxins was maintained in the temperature range of 170-240°C. 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Mono-chlorobenzene (MCB) was used as a model-compound of dioxins in order to study the kinetics of catalytic decomposition. The decomposition of MCB is a first order reaction with respect to the concentration of MCB and the reaction rate was 1.4 times higher at 200°C than at 170°C. The durability test of the catalyst using the real flue gas from a municipal waste incinerator was performed. Dioxins were completely decomposed at the initial stage, and the decomposition efficiency of dioxins after 16, 500 hours was still 95% in TEQ. The influences of reaction temperature and linear velocity on the decomposition of dioxins were clarified. The high decomposition rate of dioxins was maintained in the temperature range of 170-240°C. 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| source | J-STAGE (Japan Science & Technology Information Aggregator, Electronic) Freely Available Titles - Japanese; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals |
| subjects | catalyst decomposition dioxins durability test mono-chlorobenzene |
| title | Removal of Dioxins in Flue Gas from Waste Incinerators by Catalytic Oxidative Process |
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