Microkinetic Modelling of NO Reduction on Pt Catalysts
The major harmful automobile exhausts are nitric oxide (NO) and unburned hydrocarbon (HC). Reduction of NO using unburned fuel HC as a reductant is the technique used in hydrocarbon-selective catalytic reduction (HC-SCR). In this work, we study the microkinetic modelling of NO reduction using propene as a reductant on Pt catalysts. The selectivity of NO reduction to N2O is detected in some ranges of operating conditions, whereas the effect of inlet O2% causes a number of changes in the feasible regimes of operation.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1127625Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1052
 Burch, R.; Millington, P.J. Selective reduction of nitrogen oxides by hydrocarbons under lean-burn conditions using supported platinum group metal catalysts. Catal. Today 1995, 26,185–206.
 Nikolopoulos, A.A.; Stergioula, E.S.; Efthimiadis, E.A.; Vasalos, I.A. Selective catalytic reduction of NO by propene in excess oxygen on Pt- and Rh-supported alumina catalysts. Catal. Today 1999, 54,439–450.
 Lee, J.H. and Kung, H.H., 1998. Effect of Pt dispersion on the reduction of NO by propene over alumina-supported Pt catalysts under lean-burn conditions. Catalysis Letters, 51(1-2), pp.1-4.
 Meunier, F.C.; Breen, J.P.; Zuzaniuk, V; Olsson, M; Ross, J.R.H. Mechanistic Aspects of the Selective Reduction of NO by Propene over Alumina and Silver – Alumina Catalysts. J. Catal. 1999, 187, 493–505.
 Luo, Y; Hao, J; Hou, Z; Fu, L; Li, R; Ning, P; Zeng, X. Influence of preparation methods on selective catalytic reduction of nitric oxides by propene over silver-alumina catalyst. Catal. Today. 2004, 93-95,797–803.
 Prasad, V. S; Snigdha, R; Aghalayam, P. NO reduction using Pt and Ag catalysts. Chemcon, IIT Guwahati, Dec 27-30, 2015.
 Chatterjee, D; Deutschmann, O; Warnatz, J. Detailed surface reaction mechanism in a three-way catalyst. R. Soc. Chem. 2001, 119,371–384.
 Ravikeerthi, T; Thyagarajan, R; Kaisare, N. S; Aghalayam, P. Microkinetic model for NO–CO reaction: Model reduction. Int. J. Chem. Kinet. 2012, 44,577–585.
 Prasad, V. S; Aghalayam, P.Microkinetic Modeling of the Effects of Oxygen on the Catalytic Reduction of NO on Pt and Rh in Automotive After treatment. IECR. 2016, 55 (35), pp 9362–9371.