NOx reduction efficiency in simulated lean exhaust conditions has been examined for three proprietary catalyst materials using a non-thermal plasma discharge as a pretreatment stage to the catalyst. Using propene as the reducing agent for selective catalytic reduction, 74% reduction of NOx has been observed in the presence of 20 ppm SO2. For sulfur-free simulated exhaust, 84% NOx reduction has been obtained. Results show that the impact of sulfur on the samples examined can vary widely from virtually no effect (
Revised: June 2, 2004 |
Published: October 16, 2000
Citation
Aardahl C.L., C.F. Habeger, M.L. Balmer, K.G. Rappe, D.N. Tran, M. Avila, and P.W. Park, et al. 2000.Plasma Enhanced Catalytic Reduction of Nox in Simulated Lean Exhaust. In SAE Technical Paper Series, 1-7. Warrendale, Pennsylvania:Society of Automotive Engineers, Inc.PNNL-SA-33763.