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,(,450016)::;;;Abstract:Thisarticleintroducesanddiscussesthecurrentpurifyingmethodsdefectofexhaustpollutantsfromthedieselengineoutside,andprospectsthenewpurifyingmethodinthefuture1Keywords:Dieselengine;Particulatematter;Trap;Catalyticagent:U469174:B:100623331(2004)0320028202,,,2004(Ê)(Ê),20031131,,,,,1111,COHC,NOx:(1),NOx(2),COHC,,,(3),SO2,;,,112,,,319L4,,60%,HC47%(113göhp2hr01687göhp2hr),CO17%(1515göhp2hr12186göhp2hr),NOxNOx,COHC,,2211,:(1),(2),(3),,,,,,212,200500C,500600C,263BUSTECHNOLOGYANDRESEARCHVol126No132004©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,,111,,,,,,,15min,,,,650C,,,,2,,23,3:,,,,,,,,,,,,,,,,,,,,NOx3,,NOx,NOx,(DPF),,150250C,,(NOx)20%70%,(NOx)(O2)NOxNO2,C(CO)NO2,NONOx,:[1]1[M].:,2000[2]1()[M].:,1993[3]1[M].:,2000:20042012303:29©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.