The purifying technique by plasma for removing the exhaust-gas from diesels

The purifying technique by plasma is introduced which is a new technique used in the world to remove the exhaust-gas from automobile engines.Studies show that plasma technique may effectively lower the exhaust-gas of diesels.Under the range of automobile revolutions and moderate or less loads,the efficiency of removing particles is generally between 60%~90%,the removal efficiency of NOx reaches 20%,and that of HC is 25%~30%.The paper analyzes the prospects of the technique and its application and the factors which affect the purifying techuique by plasma.