Reduction of NO by Propene Over Pt, Pd and Rh-Based ZSM-5 Under Lean-Burn Conditions期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Reduction of NO by Propene Over Pt, Pd and Rh-Based ZSM-5 Under Lean-Burn Conditions

Authors:	Javier Pé rez-Ramí rez, Jorge M. Garcí a-Corté s, Marí a José Illá n-Gó mez, Freek Kapteijn, Jacob A. Moulijn Concepció n Salinas-Martí nez de Lecea

Affiliation:	(1) Industrial Catalysis, DelftChemTech, Delft University of Technology, Julianalaan 136, 2628 BL Delft, The Netherlands;(2) Department of Inorganic Chemistry, University of Alicante, P.O. Box 99, E-03080 Alicante, Spain

Abstract:	Selective catalytic reduction of NO by propene has been investigated over noble metal (Pt, Pd, Rh)-based ZSM-5 catalysts. These samples were tested in a gas mixture system in the presence of excess oxygen, simulating lean-burn exhaust gases. The sequence in activity for NO reduction was Pt > Rh Pd. Regarding the selectivity of the reaction to N₂, an opposite trend was observed: Rh > Pd Pt. The catalytic systems have presented stable operation under isothermal conditions during time-on-stream experiments.

Keywords:	de-NO_x HC-SCR noble metal ZSM-5
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