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:2007-01-08:(1976-),,,600MWApplicationofFlueGasDenitrificationTechnologyin600MWUnit,WENZhi2yong,YUYue2xi(,510600)(GuangdongElectricalPowerTest&ResearchInstitute,Guangzhou,510600,China):NOx,5600MW,SCR,SCR:;SCR;SNCR;NOxAbstract:TechnologiesofreducingNOxemissionfromfluegasincoal2firedpowerplantsisanalyzed.Afluegasdenitrificationprojectin600MWunit#5inacertainplantisdiscussedasanexample.ThesystemstructureofSCRfluegasdenitrificationtechnologyintheprojectisintroduced,andsomeissuesthatshouldbeconsideredintheapplicationandoperationofSCRfluegasdenitrificationtechnologyareproposed.Keywords:fluegasdenitrificationtechnology;SCR;SNCR;NOx:TM621.8;TK02:A:1671-8380(2007)03-0018-05170%,,NOx,NOx550tNOx,200312GB13223-2003,NOx20047,NOx0.60/kg,NOx,,NOx2NOxNOx,NOx,NOx;NOx,2.1NOxNOx,:,;,;2.1.1NOx,NOx1,,NOx,70%,,NOx,2.1.2NOx8120073N2,,NOxN2NOx2.1.3,,NOx2.1.4NOxNOx,NOxNOx,,,;NOx,,NOx2.22.2.1,NOx,NOx,:2H2O+4NO2+O24HNO3,NONOx90%,NONO2,O3KMnO4,():NOx,,(SNCR)SNCR,NOxN2H2O,(NH3)(9001100),NH3/NOx23,30%50%85%,NH3,10mg/m3,950,:4NH3+4NO+O24N2+6H2O,,NO:4NH3+5O24NO+6H2O,SNCR,2.2.2,,;,,,,;,;,;,;,(SCR-SelectiveCatalyticReduction)SCR:(250450)N2,:4NO+4NH3+O24N2+6H2O6NO2+8NH37N2+12H2O,SCR,NH3,NH3,,,SCR,,WO3V2O5SCR,,,NH3;25%,NH3;NH3,,5%NH3600MW,SCR3SCR5(600MW)SCR1221NH3NH3NH3NH3/,,NH3,,N291200731600MWSCR3.1SCRSCR,2SCRDNX-864,891,NH3,NH3,SCR1,6,22SCR,,NH3,,4SCR3,,3.2,221NH379m3,BM2CR10d,15%2,NH32100%,11,NH3,,3.3NH3NH3NH3/,NH3,NH3;NH3NH3/NH3,NH3,SCR2.22MPa,2100%,11,NH35%,SCR10,11,NH3,NH33.4NH3,,NH32NH30220073NH3,,,,,1N2,N2N2,N2,,N2,,NH34SCR5,,,80%,NH30.510-6,400Pa:4.1SO2,DNX220450,,,SO2,SO3SO3NH3NH4SO4(ammo2niumbisulfate-ABS),NH4SO4,NH4SO4,NH4SO410NH4SO4NH3SO3,NOx3,317,,450,,420,14,420,34.2,3,,,,,,,,444.3NH3,NH3,NH3,NH3SO3NH4SO4,NH3NOxNOx,,,,SCRNH3,NH3,SCR,NH34.4,:NaK,1220073,As2O3,,CaOSO3,,CaSO4,CaSO4,,,NOx,NH3O2,,,,,,4.5,,850,NH316%25%(V/V),NH3,,4:85%,15%;,N21%2%;NH3;,NH3,5NOx,NOx,NOx,,NOxNOx,NOx,NOx;NOx,SCR,,80%SNCR,SCR,NH3[1].5[R].:,2007.[2][Z].,2006.(6):m=tQe1000(N-1)mGN-3,kg;t,24,h;,20,mg/L;Qe,m3/h;N,,,5,,,,,6,GN-3,,,,,,GN-32220073