Abstract
The oxidation of xylene and its irradiation byproducts in air using a γ-Al2O3 bed was studied under electron-beam (EB) irradiation to enhance the decomposition of volatile organic compounds in ventilation gases emitted from paint factories. The EB irradiation experiments were mainly conducted under three different conditions: in the absence of a γ-Al2O3 bed, and in the presence of a γ-Al2O3 bed placed in an irradiation or a non-irradiation space. The use of the γ-Al2O3 bed enhanced the oxidation of the irradiation byproducts to CO2. Furthermore, the oxidation of the byproducts was accelerated by the placement of the γ-Al2O3 bed in the irradiation space, because of the interaction of primary electrons with the surface of the γ-Al2O3 pellets. This combined oxidation process enabled a reduction in the energy consumption for non-toxic CO2 formation and improved the selectivity of CO2 production.
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