1. Nonthermal-Plasma-Promoted Catalysis for the Removal of NO~ From a Stationary Diesel-Engine Exhaust.
- Author
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Srinivasan, A. D. and Rajanikanth, B. S.
- Subjects
DIESEL motors ,NITROGEN oxides ,AMMONIA ,HYDROCARBONS ,ALDEHYDES ,PLASMA gases ,IONIZED gases ,ENERGY consumption ,CONSUMPTION (Economics) ,POWER resources - Abstract
A detailed study on the removal of oxides of nitrogen (NO
x ) from the exhaust of a stationary diesel engine was carried out using nonthermal-plasma (pulsed electrical-discharge plasma)-promoted catalytic process. In this paper, the filtered exhaust from the diesel engine is made to pass through a combination of nonthermal plasma reactor and a catalytic reactor connected in series. This combination is referred to as cascade. Two types of cascaded systems were studied. In one type, the plasma treating filtered exhaust was cascaded with a reduction catalyst V2 O5 /TiO2 using ammonia as reducing agent, and in the other type, the plasma treating filtered exhaust was cascaded with activated-alumina catalyst without any additive. Improved NOx -removal performance of both the cascaded processes and the role of nonthermal plasma in promoting catalysis are explained. Along with the NOx , total hydrocarbon and aldehydes were also removed. Furthermore, experiments were conducted at different temperatures and engine-loading conditions. [ABSTRACT FROM AUTHOR]- Published
- 2007
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