火电厂脱硝技术与应用以及脱硫脱硝一体化发展趋势

,,,,:2100,85.5;200:[1],..(InternationalEnergyOutlook2005):(2025)[M].:,2006.[2].[M].:,2005.[3].[M].:,2006.[4]CleanEnergyTrends2007.():20071023:陈晖(1968),男,江西人,硕士,副研究员,从事行业战略研究,02164455555(:吕斌)火电厂脱硝技术与应用以及脱硫脱硝一体化发展趋势葛荣良(,200437):(NOx),SO2NOx,,,:;;(NOx);();NOx;;;;;:X773:B1,60%,76%,200520t,,70%SOX(:SO2SO3)NOx(:NONO2N2O3N2O4N2O5),SO2NONO2,(Desulfurization)(Denitrification)()SO2NOx,SOXNOx,,NOxNOx70%,NOx,NONO2NOx:NOx,NOx,;NOx,,NOx()NOx,NOx,!458!!!!上海电力20075(SelectiveCatalyticReduction,SCR),,,,,:(FGD)(SCR)SO2NOx;SO2NOxSOX/NOx,:/!!!SCRSNOXSNRB,,:NOXSOLILAC;:CombiNOx,,1NOX(PGR)(CST)NOx20%~80%NOx,150∀10-6,,,,NON2O2,,,,,(SNCR)NOx,,,,(SCR),NOx,,;,,,,;,,OHONO2,,,,NONO2,,,2NOx(),,,2.1NOx(),NOx,:;;;;;,(),:;(SCR)(SNCR);,12.22.2.1NOxNOxNOxNNOx!459!20075上海电力!!!(1)利用改变燃烧条件的控制方法,,NOx;,,NOx;,,NOx(2)利用改变燃烧方式的控制方法NOx,,O2,,,NOx;,NOx;,10%~20%;,,,NOx2.2.2,(1)气相反应法包括3类:1),NONO2,H2ONH3NH4NO32),,NH3CNOxN23),NOx,O2N2(2)液体吸收NOx的方法较多,应用较为广泛NOx,NOx,(3)吸附法脱除NOx,,,NONO2,,NOx,,,,,(4)液膜法净化烟气是美国能源部能源技术中心开发的一种脱硝技术,NOx(5)微生物法烟气脱硝原理,NOx,NOxN2,NO2NO3NO2N2,NON2:(SCR),2.3SCR,NOx1998NOxSIP,EPA75GWSCR,60GW200223.1GWSCR,SCR,SCR,;,2.3.1(NOx),,1994,566GW(770GW),2325488GW#h(3268250GW#h),,NOx,NOx2NOx,,36.9%,NOx;423%,NOx,32.4%;2NOx!460!!!!上海电力20075,NOx,NOx,,NOx2NOx//GWNOX/∀103t#a-1/%NOX()411120.7214736.935.8()398.62772.64.6423138.3205342.334.28927.67328.512.2334.81001.51.7()3624.16797.411.350.720.20.1271.960.60.11063326.75996100.0100.0,1990∃%&NOx∋(19962000)(3)∋,NOx(NO2)0.215g/MJ(O2=6%,610mg/m3);0.194g/MJ(O2=6%,554mg/m3)31990&NOx∋19962000(2000∋()0.215(610)0.194(554)0.194(554)0.163(467)(()-0.370(1058)-0.400(1156)-0.344(984)()-0.293(836)-0.125(357):g/MJmg/m3O2=6%2000(,∋,((11),∋,NOx400∀103t/a(,NOx820∀103t/a,∋NOx,,270/t;611/t∃%2.3.2NOx()NOxNOxNOx300ppm,NOx200ppm:,,NOx300~400)N2H2O,,,NH3:NOx()0.81~0.82,NOx80%(),()2.3.3NOx,2060,,NOx2000mg/m3NOx1200~1500mg/m3,NOx,NOx,(NOx)Scholven740MWF:,,,NOx,!461!20075上海电力!!!NOx750mg/m3,200mg/m3138MW:,NOx650mg/m3Schkopau450MWNOx,NOx140mg/m3NOx,,NOxNOx,,NOx,Scholven6,,8~12a,NOx120~160mg/m3,NH3(,),NOxN2H2O,850~1000)NH3,,NH3,NH3,Marl75MW,NOx200mg/m32.3.4,,,,,,,,#()()()(SCR),,,6∀600MW2∀600MWTAICHUNG550MW,4(600MW)5(600MW),3SO2NOx,,,SO2NOx,,,,:(CombinedSO2/NOxRemoval)(SimultaneousSO2/NOxRemoval),SNRBNFTDESONOX;(Sorbent)(Step)SO2NOx,NOXSO43.1EPRI(),60,3.1.1SNOXOhioEdisonNile2!462!!!!上海电力200754/%/%NFT50~6050~60,;1000,;SNOX9590;,;SCR;,NOSOXNaCO39875,;SO2NOx,,NOx;,,SOXNOxROXBOx8090,;,;SCR9585,;,,,OHONO2,,,,9080,,;,SCR;108MWSNOXSCR(),SO2WSA(),,,,95%,94%,∋,SO2NOx,NH3,NH3/NOx1.0NH3(NH3),NH3/NOxSCR,,,,,,,3.1.2SNRBOhioEdison∗sR.E.Burger,SNRB,,SO2,SCR,NH3,NOxSCRSNRB,NH3/NOx,,,SNRB85%,,SNRB,,SCR3.1.3NOx/SO2NOx/SO24LNB(NOx)OFA()SNCR()DSI()NOx,DSI()!463!20075上海电力!!!,,,,FGDSCR,,,70%80%,3.1.4,,,NOxN2,N2,(99.9%),,,SO2,,,Schwandorf,,90%70%,,3.1.5,SO2SO3,,;,NOxN2,SO2,SO2Clause,95%,50%~80%,,,3.1.6NOx,SO2NOx,SO2,,-Al2O3,NOx,SO2,Clause,90%70%~90%,,,,,FGDNOxSCR,,,3.2SO2NOx:,:;/,,,3.2.1(1)钙基吸附剂脱硫脱硝法ADVACATE(ADVAncedsiliCATE),Ca(OH)2CaSO3NaOH,,SO2NOx,60~125),O280%,50%RochelleADVACATE,SO2NOx,SO2NOxSakaiO∗DowdGhorishi!464!!!!上海电力20075,,NOx(2)电子束照射法(EBA),,,SO2NOx,,,90%,80%,,,,,,,,,1970,1974,19771980!1992,208012000m3/h,90%,18%,,,,,X,,(3)脉冲电晕法PalumboSO2,MasudaNOxSO2,,,SO2NOx,,,(4)NOXSO技术NOXSO,-Al2O3(1.6mm),90%,70%~90%,,,,NOXSO1979,0.75MW19935MW,,10000h,SO295%,NOx85%(5)活性炭脱硫脱氮法,,,SO2,,NOx,SO2,NOx,SO2,,97%,80%1987,350MWNOx,1995,SO290%,NOx80%(6)LILAC工艺HokkaidoMitsubishiLILAC()SO2/NOx5,95)3~12h80m3/h,CaS2.7,!465!20075上海电力!!!90%SO270%NOxN18O18O2SO2NO2-;NOxCa(NO3)2,SO2NO,NOxSO2/NOx,NO2SiO2,SO2Ca/S1.2,5%,LILAC95%3.2.2(1)氯酸氧化工艺,TriNOxNOxSorb,,SO2NOx,HClO3NOSO2,Na2SNaOH,,NOx95%NOx,SO2,,2070TeramotoNOx,90Brogren,(2)湿式配合吸收工艺90%SO2,NOx,Sada1986,Fe(()EDTANOxHarkness1986Bonson1993,SO2NOx,6%Fe(()EDTA,60%99%FGD,Fe(EDTA)Fe(NTA)NO,NOSO2O2N2N2O,NSNS,,(3)CombiNOX工艺CombiNOX:NO2+SO32-=NO-2+SO-3,;,,,90%~95%,99%,,,NOxSCRSNCR;,,;,SO2NOx,,,,,4,,,,,,,,,!466!!!!上海电力20075,(SCR),,,,,,,,,:[1].[J].,2006,7(8):15.[2].[J].,2005(2):3840,50.[3].[J].,2003,38(1):5963.[4].[J].,2006,24(3):1720.[5].[J].,2003(4):6468.[6].[J].,2005,31(127):46,13.[7].[J].,2003.22(3):4750.[8].[J].,1999,15(4):3437,48.[9].NOx[J].,1997,11(4):3840,48.[10].[J].,2000,13(4):4749.[11].[J].,2002(4):1214,39.[12].[J].,2006,29(7):103105.:20071105:葛荣良(1943),男,江苏苏州人,高级工程师,本科,从事电力行业科技查新咨询和编审工作,02125650179(:吕斌)20071114:,,2007,10%,,,,SAVE,,,50%,20A!320A16,,,,,20320A,35%,105∃%20071115:∃%,,300010050,∃%,,,,,,,,,,,8h,1.039/(kW#h)0.306/(kW#h),205,7!467!20075上海电力!!!