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25420058Vol.25No.4Aug.2005:100026761(2005)04205772051,1,2,1,1,1(1.,250061;2.,273522):,,SO2H2S:;SO2,H2S;939:;;;;:TQ534:AExperimentalStudyonCharacteristicsofSulfurReleasefromBlendedCoalinOne2dimensionalFurnacesLIYing2jie1,HANKui2hua1,LIUJiang2,LUChun2mei1,WANGYong2zheng1,LIUHan2tao1(1.SchoolofEnergyandPowerEngineering,ShandongUniversity,Jinan250061,China;2.ShandongZhouxianPowerPlant,Jining273522,China)Abstract:Withleancoalofhighsulfurcontentastheobjectofresearch,theparticularsofsulfurreleaseduringcombustionwerestudiedinthecaseofadmixtureoflow2sulfurleancoalaswellasinthecaseoflow2sulfurbituminouscoaladmixture.ParticularsoftheSO2andH2Sreleasingprocessofeachkindofcoalweretest2studiedindividuallyaswellastheeffectofvariousproportionsofblending.Testresultsshowthatthecombustionpropertyofblendedcoalisstronglyinfluencedbythatoftheindividualingredients;theconcentrationofSO2releasedbyblendedcoalbasicallyliesin2betweenthoseoftheconstitutingingredients,whiletheconcentrationofH2Sreleaseddoesntseemtofollowanyrule.Thereisacertaindifferenceofsulfurreleasebetweenleancoaladmixedwithleancoalandleancoaladmixedwithbituminouscoal.Figs9,tables3andrefs9.Keywords:environmentalengineering;blendedcoal;one2dimensionfurnace;sulfurrelease;experimentalstudy:2005202217:(No.Y2003F07),(No.2003A20):(19772),,,,,,SO2H2S,,,NOx[14],SO2[5,6],H2S,SO2,HTOCLC,SO2H2S,PP©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.1,180mm,8m,,25010,0.4m,,SO2MSIMRU,H2SH2S,1210.4m,1Fig1Systemschematicoftheone2dimensionalcombustiontestrig12345678910H2S11NO212MSIMRU1314151617181Table1Coalsindustrialanalysis,elementanalysisandsulfurcomponentcontentP%,adMAVFCP%,adCHONP%,adStSsSpSoPkJkg-1Qnet,arHT1.1232.3114.4252.1558.962.931.820.981.880.061.160.6620696OC1.1427.0512.6859.1364.182.823.231.200.370.0060.220.14423705LC1.3416.5420.2261.9070.943.745.511.260.650.010.240.4026806:St-,Ss-,Sp-,So-,FC-2Table2ParametersofthetestmodesPmm2HTOCHTOCHTOC3:11:11:3HT3OC1HT1OC1HT1OC30.740.740.741.21.21.22HTLCHTLCHTLC3:11:11:3HT3LC1HT1LC1HT1LC30.740.740.741.21.21.287525©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.20.8m,,19TGAPSDTA85122.1,TGAPSDTA851e,TGDTG,2TGDTG,TG,,,DTG,,,,;,3Ti(DTG)maxT,S(S=(DTG)maxP(TiT)),S,[7]23,LC,HT,OCHT[8],HTLC,3Table3ExperimentalcombustionparametersoftheindividualcoalsamplescoalTi/(DTG)max/mgmin-1(DTG)max/SHT4701.556105.406OC4971.396444.303LC4561.535336.2542TGDTGFig2TGandDTGcurvesofsomeindividualcoalsOC2.22.2.1HTHT,,61.7%,SO2,HT,(FeS2),H2S,,,,H2S,HT,,,,,H2S3,H2S,SO210%30%34,HTSO2,,H2S,SO2,SO2;45,,H2S;56,H2SSO2,SO2;610,H2S,SO23HTSO2H2SFig3SO2andH2SconcentrationdistributionofHTleancoalalongthefurnace2.2.24SO2,SO2OC,,4,OC,SO29754,:©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.HTSO236%54%;H2S3,HTH2S50%69%,35%25%45:,OC,SO2H2S,SO2HTOC,,SO2H2SHTOCSO2311113,SO2,SO2,H2S,SO2,H2S,H2S4SO2Fig4SO2concentrationdistributionofleancoalmixtures5H2SFig5H2Sconcentrationdistributionofleancoalmixtures2.2.36,23,LCSO2,HTSO2,2LC,HTSO21,LC61%,LC;J.S.Sinninghe[9],,LC,LC,500,LCHT,LCHT,2,LC,SO2,LCSO2HTSO2,SO2HTSO2LC,,,SO26SO2Fig6SO2concentrationdistributionofmixturesofleanandbituminouscoalHT,H2S35,LCLCH2S5H2S,LC,LCLC,LC,,SO25,H2S7H2S,,,1.2,,H2S2.2.4,HT1OC3HT1LC308525©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.7H2SFig7H2Sconcentrationdistributionofmixturesofleanandbituminouscoal,HT1LC3HT1OC3,HT1LC3HT1OC3,HT1LC3HT1OC3SO2,HT1LC3SO2HT1OC3,8H2SSO29,4,HT1OC3H2SHT1LC3HT1OC38SO2Fig8DistributioncurvesofSO2concentrationemittedbydifferentcoalmixtures9H2SFig9DistributioncurvesofH2Sconcentrationemittedbydifferentcoalmixtures,,,,,,H2S,HT1OC3H2SHT1LC33,SO2,,SO2,SO2,SO2,H2S,,H2SH2S,SO2,,SO2,H2S,,H2S,,SO2;H2S:[1],,,.[J].,2003,23(4):24952499.[2]SuS,PohlJH,HolcombeD,HartJA.Techniquestodetermineignition,flamestabilityandburnoutofblendedcoalinp.f.powerstationboilers[J].ProgressinEnergyandCombustionScience,2001,27(1):7598.[3]HelleSonia,Gordon,Alfredo,Alfaro,Guillermo.Coalblendcombustion:Linkbetweenunburntcarboninflyashesandmaceralcomposition[J].FuelProcessingTechnology,2003,80(3):209223.[4],,,.NOx[J].,2004,19(3):242245.[5],,,.[J].,2003,28(4):409413.[6],,,.[J].,2004,27(4):4246.[7],.[J].,1999,30(10).[8],.[J].,2002,22(3):17641767.[9]SiningheJS,DeLeeuwJW.Origanicallyboundsulphurincoal:amolecularapproach[J].FuelProcessingTechnology,1992,30(2):109178.1854,:©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.