Abstract:

Noble (Pt, Pd) and transition metals (Mn, Cu) were employed as coupling catalysts to evaluate the toluene (1500 ppm C of initial concentration) removal efficiencies in the electron beam (EB)-catalyst coupling system. The toluene removal efficiency was 60.1% in the EB-only system at a dose of 8.7 kGy. In the presence of the metal catalysts (Pt, Pd, Cu and Mn), the removal efficiency was enhanced by 37, 33, 6 and 22%, respectively, compared to that of EB-only treatment. It was found that the selectivity to CO₂ with Pt and Pd coupling were relatively higher than those of Cu and Mn. Especially the CO₂ selectivity of EB-Pt coupling was significantly high at a relatively low absorbed dose. The removal efficiencies were compared for loading of catalyst and there was no significant difference among 0.1, 0.5 and 1.0 wt%.

Keywords: ELECTRON BEAM; CATALYST; COUPLING; PT; VOC

Document Type: Research article

DOI: 10.1163/156856708786189203

Affiliations: 1: Department of Earth and Environmental Sciences, Sejong University, Kun Ja Dong, Kwang Jin Goo, Seoul, South Korea 2: Department of Environmental Engineering, Konkuk University, Hwayang Dong, Kwan Jin Goo, Seoul, South Korea 3: Department of Environmental Engineering, Konkuk University, Hwayang Dong, Kwan Jin Goo, Seoul, South Korea; Department of Advanced Technology Fusion, Kaskule University, Hwayang Dong, Kwan Jin Goo, Seoul, South Korea 4: Department of Advanced Technology Fusion, Kaskule University, Hwayang Dong, Kwan Jin Goo, Seoul, South Korea 5: Faculty of Environmental Engineering, University of Seoul, 90 Jeonnong-dong, Dongdaemun-gu, Seoul, South Korea