Abstract
The ozonizer combined with the chemical hybrid reactor is investigated using a 479cc (5.5kW) power generation diesel engine. The PM deposited on the diesel particulate filter can be incinerated by ozone and NO_2 and evaluated for various gas temperatures. The NO is oxidized to form NO_2 by ozone and produced NO_2 is reduced by the 3 mass% Na_2SO_3 chemical reactor. Furthermore, a new ozone circulation system for DPF regeneration is proposed. As the results, PM deposited on both metal and ceramic filters are successfully removed even at ambient temperature. With the use of 10L/min with 2% ozone concentration, 82% of NO is oxidized to NO_2 and 78% of NO_x is removed. The operating cost is approximately 25% of the conventional SCR.
