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Non-Thermal Plasma Enhanced Urea-SCR Treatment of Diesel Exhaust for Low-Temperature NOx-Reduction
Technical Paper
2001-01-3200
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Test bench measurements were performed demonstrating low temperature non-thermal plasma enhanced selective catalytic reduction of NOx in the exhaust of a 1.9 liter direct injection Diesel engine. The plasma-catalytic hybrid system consisted of an oxidation catalyst, a modular dielectric barrier discharge reactor for plasma treatment, a semiconductor switched pulse voltage source for electrical excitation, and an urea SCR system based on a monolithic V2O5-WO3/TiO2 catalyst. In a test cycle simulating urban driving conditions the average NOx-mass flow was reduced from 27 g/h down to 11.5 g/h. Maximum NOx-reduction rates of 28 g/h were obtained at an energy cost of 10 Wh/g NOx. The ammonia storage capability of the catalyst was utilized for reduction at temperatures below 140 °C.
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Hammer, T., "Non-Thermal Plasma Enhanced Urea-SCR Treatment of Diesel Exhaust for Low-Temperature NOx-Reduction," SAE Technical Paper 2001-01-3200, 2001, https://doi.org/10.4271/2001-01-3200.Also In
References
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