Passve regeneration: Lub DPF cab kuj yog coated nrog ib txheej ntawm precious hlau catalyst.Raws li qhov tsim nyog qhov kub thiab txias, NO2 tsim los ntawm chav tsev DOC reacts chemically nrog C hauv DPF, thiab cov tshuaj sib npaug ntawm cov tshuaj tiv thaiv yog raws li nram no
C + 2 NO2=CO2+2 NO
C + O2=CO2
Lub ntsiab sib npaug ntawm cov tshuaj tiv thaiv rau kev tshem tawm CO thiab HC hauv DOC chav tsev
4 HC + 5 O2= 2 H2O + 4 CO
SQF + O2=H2O + CO
2 CO + O2= 2 CO2
2 NOS + O2= 2 NO2
C + O2=CO2
