NOx Treatment Using Inductive-Energy-Storage Pulsed Power Generator

Nitrogen oxide (NOx) removal is being studied for exhaust-gas treatment by pulsed discharge. A recently developed pulsed-power source using inductive energy-storage was used as the high-voltage generator, which drives corona discharge in a small reactor cell. The whole system is very compact, lightweight, and low-cost. It is possible to be operated with relatively low DC voltage supply at low power level. The ultimate target of this development is on-vehicle application for diesel exhaust-gas treatment. In the results that were obtained, NO and NO2 removal rate can be increased in N2 atmosphere with increasing repetition rate and NO removal rate in N2 atmosphere increases as the input voltage is increased.