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An electron-beam irradiation/catalytic oxidation system for purification of aromatic hydrocarbons/air mixture under practical gas-flow condition / Teruyuki Hakoda in Industrial & engineering chemistry research, Vol. 49 N° 12 (Juin 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 12 (Juin 2010) . - pp. 5517–5522 Titre : An electron-beam irradiation/catalytic oxidation system for purification of aromatic hydrocarbons/air mixture under practical gas-flow condition Type de document : texte imprimé Auteurs : Teruyuki Hakoda, Auteur ; Akihiko Shimada, Auteur ; Atsushi Kimura, Auteur Année de publication : 2010 Article en page(s) : pp. 5517–5522 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Electron-beam  (EB)  irradiation/catalytic  oxidation  system  Volatile  organic  compound Résumé : An electron-beam (EB) irradiation/catalytic oxidation system was developed for the purification of a volatile organic compound (VOC) gas stream under a practical gas flow condition. This system consists of a compact-sized electron accelerator and an ozone decomposition catalyst, which is MnO2. The removal of toluene and/or xylene and their mineralization were examined with and without catalytic oxidation for a gas stream at a flow rate of 500 Nm3 h−1. A combined catalyst bed enhanced the removal of VOCs and the mineralization of VOC and its irradiation organic byproducts. For example, for an initial concentration of 5 ppmv, the removal ratio of toluene and xylene increased from 60% to 91% and from 81% to 91%, respectively, at a dose of 4.4 kGy. The mineralization ratio increased from 42% to 100% by the catalytic treatment at doses higher than 9.3 kGy. Furthermore, the yield of CO2 to COx increased from 52−60% to 83−89% by the catalytic treatment. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie100278k [article] An electron-beam irradiation/catalytic oxidation system for purification of aromatic hydrocarbons/air mixture under practical gas-flow condition [texte imprimé] / Teruyuki Hakoda, Auteur ; Akihiko Shimada, Auteur ; Atsushi Kimura, Auteur . - 2010 . - pp. 5517–5522. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 12 (Juin 2010) . - pp. 5517–5522 Mots-clés : Electron-beam  (EB)  irradiation/catalytic  oxidation  system  Volatile  organic  compound Résumé : An electron-beam (EB) irradiation/catalytic oxidation system was developed for the purification of a volatile organic compound (VOC) gas stream under a practical gas flow condition. This system consists of a compact-sized electron accelerator and an ozone decomposition catalyst, which is MnO2. The removal of toluene and/or xylene and their mineralization were examined with and without catalytic oxidation for a gas stream at a flow rate of 500 Nm3 h−1. A combined catalyst bed enhanced the removal of VOCs and the mineralization of VOC and its irradiation organic byproducts. For example, for an initial concentration of 5 ppmv, the removal ratio of toluene and xylene increased from 60% to 91% and from 81% to 91%, respectively, at a dose of 4.4 kGy. The mineralization ratio increased from 42% to 100% by the catalytic treatment at doses higher than 9.3 kGy. Furthermore, the yield of CO2 to COx increased from 52−60% to 83−89% by the catalytic treatment. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie100278k