| Titre : | New "enhanced NH3 - SCR" reaction for NOx emission control (2011) |
| Auteurs : | Pio Forzzatti, Auteur ; Isabella Nova, Auteur ; Enrico Tronconi, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Industrial & engineering chemistry research (Vol. 49 N° 21, Novembre 2010) |
| Article en page(s) : | pp. 10386-10391 |
| Note générale : | Chimie industrielle |
| Langues : | Anglais |
| Tags : | Pollution abatement Selective catalytic reduction |
| Résumé : | NH3-selective catalytic reduction (SCR) is applied worldwide to DeNOx of combustion exhausts of stationary and mobile sources, but a greater DeNOx activity at low temperatures is desired to meet forthcoming restrictive legislations and to increase energy efficiency in specific applications. We have obtained high NO reduction efficiencies at 200-300 °C over commercial V-based and Fe-exchanged zeolite catalysts by reacting NO with both ammonia and nitrates (e.g., ammonium nitrate) according to a novel "enhanced SCR" reaction, 2NH3 + 2NO + NH4NO3 → 3N2 + 5H2O. This provides a new route for low-temperature NOx reduction wherein the DeNOx activity is maximized by dosing an aqueous solution of nitrates to the SCR reactor feed stream. |
| ISSN : | 0888-5885 |
| En ligne : | http://cat.inist.fr/?aModele=afficheN&cpsidt=23447930 |
