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MnOx – CeO2 / activated carbon honeycomb catalyst for selective catalytic reduction of NO with NH3 at low temperatures / Yanli Wang in Industrial & engineering chemistry research, Vol. 51 N° 36 (Septembre 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 36 (Septembre 2012) . - pp. 11667–11673 Titre : MnOx – CeO2 / activated carbon honeycomb catalyst for selective catalytic reduction of NO with NH3 at low temperatures Type de document : texte imprimé Auteurs : Yanli Wang, Auteur ; ChuanZhang Ge, Auteur ; Liang Zhan, Auteur Année de publication : 2012 Article en page(s) : pp. 11667–11673 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Catalyst Résumé : Activated carbon honeycomb supported manganese and cerium oxides (MnOx–CeO2/ACH) catalysts were investigated for selective catalytic reduction (SCR) of NO at low temperatures of 80–200 °C. Compared with ACH supported manganese oxide catalyst (MnOx/ACH), MnOx–CeO2/ACH catalysts show much higher SCR activity and higher selectivity to N2. NO conversion can be improved by the addition of CeO2 from less than 50% to 100% at 80–160 °C. The N2 selectivity of higher than 99.8% is obtained over the Ce(1)Mn/ACH catalyst at 80–200 °C. Results indicate that the addition of CeO2 improves the distribution of MnOx and enhances the oxidation of NO to NO2, producing more absorbed NO3– on the catalyst surface, which is then reduced into N2 by NH3. These behaviors account for the promoting effect of CeO2 on the SCR activity. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie300555f [article] MnOx – CeO2 / activated carbon honeycomb catalyst for selective catalytic reduction of NO with NH3 at low temperatures [texte imprimé] / Yanli Wang, Auteur ; ChuanZhang Ge, Auteur ; Liang Zhan, Auteur . - 2012 . - pp. 11667–11673. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 36 (Septembre 2012) . - pp. 11667–11673 Mots-clés : Catalyst Résumé : Activated carbon honeycomb supported manganese and cerium oxides (MnOx–CeO2/ACH) catalysts were investigated for selective catalytic reduction (SCR) of NO at low temperatures of 80–200 °C. Compared with ACH supported manganese oxide catalyst (MnOx/ACH), MnOx–CeO2/ACH catalysts show much higher SCR activity and higher selectivity to N2. NO conversion can be improved by the addition of CeO2 from less than 50% to 100% at 80–160 °C. The N2 selectivity of higher than 99.8% is obtained over the Ce(1)Mn/ACH catalyst at 80–200 °C. Results indicate that the addition of CeO2 improves the distribution of MnOx and enhances the oxidation of NO to NO2, producing more absorbed NO3– on the catalyst surface, which is then reduced into N2 by NH3. These behaviors account for the promoting effect of CeO2 on the SCR activity. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie300555f