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Report No.

Purification of gas using electron beam

Hirota, Koichi; Hakoda, Teruyuki; Shimada, Akihiko; Taguchi, Mitsumasa; Kimura, Atsushi; Kojima, Takuji

We have focused on using MnO$$_2$$ for the oxidation of intermediates produced from electron beam irradiation of VOC. Manganese dioxide can decompose ozone, produced by the irradiation of air containing VOCs, into activated oxygen, which can ultimately oxide the intermediates. Hybrid system equipped with electron accelerator and MnO$$_2$$ has demonstrated the complete oxidation of the intermediates produced during the irradiation of xylene and toluene. The electron-beam treatment of dioxin from municipal solid waste incinerator was carried out at Takahama Clean Center in Japan. An incinerator gas of 1000 m$$^3$$N/h was diverted downstream of a dry electric precipitator and was irradiated with electron beams using an electron accelerator that supplied 300 kV with a maximum energy of 12 kW. The results showed electron-beam is a promising technology for destroying dioxin in exhaust gases.



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