SCRSelectionofcatalystinSCR(,510600):(SCR)SCR,SCR2,,:SCR;;;Abstract:ThemostwidelyusedcontrolwayofNOxemissionisSCR(selectiveCatalystReduction).Therearetwomaintypesofcatalystplatetypeandhoneycombtype.Theirphysicalandchemicalcharacteristicsarecompared.Keywords:SCR;catalyst:X701.1:B:1009-4032(2005)02-0027-03,(GB13223-2003)NOx,10%,NOx450mg/m3,,NOx,,,,1SCRSCR11SCR,,SCRSCR()()SCR,,:4NO+4NH3+O24N2+6H2O6NO2+8NH37N2+12H2ONO+NO2+2NH32N2+3H2O2SCR,,SCR,2V2O572200562122.1V2O5,WO3,NON2,V2O5,2300340,V2O5;V2O5,,SCR(230),SO3,,,,,;(420450),V2O5,,V2O5SO2SO3,,,SCR,SO31%,,LNG,,2.2,3a-;b-3,,,,,,1500mm,,,,SCR,150mm150mm,,TiO2,,1000mm3SCR,1520g/m3(),,,,,,8m/s3m/s,,BHK,3m/s13%,3m/s22%,,,,6mm,,(1),,20%,20%,,,8220056212,,,,,,,,1/()/mm(m2m3)SW2222226.7486.2()SW2323236.4531.4()SW3030304.9693.0,SW3535354.2808.0,,()SW4040403.7924.0()SW5555552.71275.0,,,,,,,SCR,SCR/,,,,,,21600MW(1)2/ms-1645/m211.123.712.126.6/m11.913.5/m3313042454:,,,,310-6,30%,SCR5a(),1,10a,1,2a,SCR,(SCR),,,V2O5,WO3,,500/m3,,1/2,,,5SCR,,,,NOxSCR,,,SCR,SCR,()(),SCR,,/:[1]1[J]1,2004(3):31-331:2004211218;:2005205212:(1977-),,,,,922005:SCR2