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1、Fuel81(2002)23432348www.fuelfirst.comCatalyticeffectofNaFeonNOcharreactionandNOemissionduringqcoalcharcombustionZongbinZhaoa,WenLia,*,JieshanQiub,BaoqingLiaaStateKeyLaboratoryofCoalConversion,InstituteofCoalChemistry,ChineseAcademyofSciences,Taiyuan03000
2、1,People’sRepublicofChinabCarbonResearchLaboratory,DepartmentofMaterialsScienceandChemicalEngineering,DalianUniversityofTechnology,158ZhongshanRoad,P.O.Box33,Dalian116012,People’sRepublicofChinaReceived30November2001;revised12April2002;accepted30April20
3、02;availableonline11July2002AbstractThecatalyticreductionofNOovercoal-derivedcharsandthecatalyticeffectofNaFeonNOemissionduringcharcombustionwereinvestigatedinaquartzfixedbedreactor.ThecatalyticcharacteristicsofNaandFeintheNOcharreactionwerestudiedandcom
4、paredindetail.TheresultsshowthatthecatalyticactivityofNadependsgreatlyonitsloadingamount,whiletheactivityofFeismoresensitivetotemperature.NaFecompositecatalystswerealsopreparedwithcharsassupport.SynergisticeffectwasfoundbothinthereductionofNOandthecharc
5、ombustion.TheNaFecompositecatalystsexhibitsignificantlyhighercatalyticactivitythanthemono-metalliccatalystswiththesamemetalloadingamount.ItisintriguingtonotethattheeffectivenessofthecatalystsonreducingNOemissionduringcharcombustionisinthesameorderasthati
6、ntheNOcharreaction,i.e.thecharswithcatalystsnotonlyhavehighactivityinNOcharreactionbutalsoemitlessNOduringtheircombustion.q2002ElsevierScienceLtd.Allrightsreserved.Keywords:NOreduction;Coalchar;NaFe;Combustion1.IntroductiontheNOcharreaction.Manyactiveco
7、mponentscoexistinmineralmatterandtheiractivitiesmaybeenhancedorItiswellknownthattheemissionofnitrogenoxidesabatedbyeachother.Bothsodiumandironexistincoalfromcoalcombustioncausesaseriousimpactonthemineralmatterandhavepotentialcatalyticactivityintheenviro
8、nment.GreateffortshavebeenmadeforeconomicalNOcharreaction.Consequently,apartfromgainingandeffectivereductionofNOx.Bynow,researchershavevaluableinformationforthedevelopmentofNOxremovalrealizedthatcatalyticreductionisonepracticalwa
