ハニカム内に発生させた非熱プラズマによるディーゼル微粒子フィルタの低音燃焼再生(熱工学,内燃機関,動力など)

概要

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The regulation for the automotive diesel engine emission becomes severe every year, and more effective post-processing technology is desired especially on particulate matter (PM), such as carbon soots. Although the use of ceramic diesel particulate filter (DPF) is now a leading technology for PM removal, the problem exists on the soot incineration or regeneration at low temperature, especially at the cold start. In the present study, a regeneration of DPF was investigated using the low temperature atmospheric pressure nonthermal plasma. The method is to use the NO_2 and radicals induced by the plasma reactor to burn carbon soots deposited on DPF. First, three types of DPF plasma reactors were constructed and the performance on the conversion of NO to NO_2 was evaluated on various conditions. Regeneration experiment was further carried out using a DPF honeycomb nonthermal plasma reactor. As a result, it was confirmed that the pressure drop decreased only when the plasma was turned on and the regeneration temperature of DPF was less than 200℃.
2003-12-25