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Plasma-Enhanced Adsorption and Reduction on Lean NOx-Catalysts
Technical Paper
2001-01-3567
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Event:
Spring Fuels & Lubricants Meeting & Exhibition
SAE International Fall Fuels & Lubricants Meeting & Exhibition
Language:
English
Abstract
The influence of adsorption and desorption processes on the non-thermal plasma enhanced catalytic reduction of NOx on NaZSM5- and Al2O3-based lean-NOx catalysts (Pt-NH4ZSM5, Cu-NaZSM5, Fe-NaZSM5, Pt-Al2O3, Pd-Al2O3, CuO-Al2O3, Ag-Al2O3) was investigated by temperature programmed reaction experiments in the temperature range from 100 °C to 600 °C. Dodecane was used as a reducing agent. Strong HC adsorption- and desorption effects were observed on the zeolite catalysts, which were not influenced by plasma-pretreatment. Adsorption of NO2 and desorption of NO occurred on Al2O3-based catalysts. By plasma-pretreatment adsorption of NO2 was induced at low temperatures. NOx-reduction rates of the catalysts Cu-NaZSM5, Fe-NaZSM5, and the Ag-Al2O3 were increased substantially by plasma-pretreatment. Both plasma-induced and catalytic oxidation of HCs were limiting factors of the NOx-reduction obtained on these catalysts.
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Authors
Citation
Hammer, T., Kishimoto, T., Krutzsch, B., Andorf, R. et al., "Plasma-Enhanced Adsorption and Reduction on Lean NOx-Catalysts," SAE Technical Paper 2001-01-3567, 2001, https://doi.org/10.4271/2001-01-3567.Also In
References
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- Bröer, S. Hammer, Th. Kishimoto, T. “NO-Removal in Hydrocarbon Containing Gas Mixtures Induced by Dielectric Barrier Discharges” 188 191 Babucke G. Proc. 12th Int. Conf. Gas Discharges and their Applications Greifswald, Germany 1997