针状焦的结构和原料-1000003390176911

242Vol124No1220014COALCONVERSIONApr12001X1)2)3)2)4),,..,,TQ522165010t,,,,,,.1950,1969,,,,.1979,,,.2080,,(),,.1111,,,,[1](1),,,,,.1(a)(b)Fig11Needlecokes(a)andtextureofneedlecokes(b),,,[2](2),,,CTE,,.X(991027).1);2);3);4),,030001:2001201211;:20012022192Fig12Textureoftwoperpendicularsectionsofneedlecokelump(3),,,,.[3].4[4],,,,,.3Fig13Micrographoftheheadofneedlebunch4Fig14Structuremodelofneedlecoke(5),,[1],6[1,4],,.5Fig15Photomicrographofneedlecoke6Fig16Evaluationofanisotropybymontagemethodfq1=(lön)ni=1fj;fi=ljcosHj,Frank2lin[1](7(a)),2000(7(b)).7(a)(b)Fig17Modelof(a)graphitizablecarbonand(b)graphite.,.241[1],,(CTE),CTE,32210-6öCTE,,sp2CTE(A),CTE(A),CTE,CTE.[1]1Table1PropertiesofneedlecokeNeedlecokeTotalmoistureö%Ashö%Realdensityögöcm3Petroleumbased0110112113Coaltarbased0110112113NeedlecokeSizeö%(5mm)Sulfurö%Nitrogenö%Petroleumbased4001400140Coaltarbased4001250150112:(1),,,,.(2),,.(3)(CTE),CTE,,CTE.[5](4),.2,.[1,5][6,7]SRC[8211].[9214]211,,[15],0101%.[5],QI,,,.QI,,,,,,,,QI.[16]QI.212,,,P2P,[17],,,.,[16,18],,,[1][15].[19],,,.6%,,,1%.[16],.[5]213,sp2,,P,,30%50%[5],,(422001),,,,,,,.,.[8,20,21],2.[1]2,.2Table2PropertiesoffeedstockSampleUltimateanalysisö%3CHNSOCöHfaRa1Solubilityö%3HSHI2BSBI2QSQILSVR861212150140120170160118015292800FCCDO881991501101401101801540132100000QIF911651111301711311501880113484040Note:LSVRLowsulfurvacuumresidues;FCCDOFluidizedcatalyticcarackingdecantoil;QIFCoaltarpitchfreefromquinolineinsoluble.3Percentofweight.,,,,(8).,,,,,.[1]8Fig18Theinfluenceofhydrogentransferreactiononcoketexture214.AlCl3HFöBF3[22].[1],,,,,.QI,,,,,.,,.[6],.,,2,..[23]3,..QI,,.522[1]MochidaI,FujimotoK,OyamaT.In:ThrowerPA,DekkerM,eds.ChemistryandPhysicsofCarbon.NewYork:MarcelDekker,1994.111[2]MochidaI,OyamaT.FormationSchemeofNeedleCokefromFcc2decontOil.Carbon,1988,26(1):49255[3]..:,1992.410[4]MochidaI,OyamaT,KoraiYetal.StudyofCarbonizationUsingaTubeBomb:EvaluationofLumpNeeldeCoke,Car2bonizationMechanismandOptimization.Fuel,1988,67(9):117121181[5],..,1997,27(1):10213[6],,..,85107292.1985204205[7]MochidaI,YouQingfei,KoraiY.CarbonizationintheTubeBombLeadingtoNeedleCoke:ËCarbonizationPropertiesofSeveralCoalTarPitches.Carbon,1989,27(3):3752380[8]DavidH.ProcessfortheProductionofPremiumGradeNeedleCokefromaHydrotreatedSRCMaterial.USPatent,4737261.1988204212[9]MochidaI,AmamotoK,MaedaKetal.CarbonizationofPitch:CompatibilityofComponentsinCarbonization.Fuel,1977,56(1):49256[10]MochidaI,AmamotoK,MaedaKetal.QuantitativeDescriptionandModificationofCo2CarbonizationCompatibilityofPitchFractions.Fuel,1978,57(4):2252230[11]KoraiY,MochidaI.Co2CarbonizationProcessesofaPetroleumAsphaltandCoal2DerivedLiqued:AnApproachtoCo2CarbonizationCompatibility.Fuel,1983,62(8):8932899[12]MochidaI,KoraiY.CarbonizationintheTubeBombLeadingtoNeedleCoke:ICo2CarbonizationofaPetroleumVacuumResidueandaFcc2DecantOilintoBetterNeedleCoke.Carbon,1989,27(3):3592365[13]NesumiY,TodoY,OyamaT.CarbonizationintheTubeBombLeadingtoNeedleCoke:ÊMechanismofCo2Carboniza2tionofaPetroleumVacuumResidueandaFcc2decantOil.Carbon,1989,27(3):3672373[14]MochidaI,YouQingfei,KoraiYetal.Co2CarbonizationofEthyleneTarPitchandCoalPitchtoFormNeedleCoke.Fuel,1990,69(6):6722677[15]Equchi.ProcessforProducingPetroleumNeedleCoke.USPatent,5695631.1997206213[16]..,1980(1):14225[17]..,1994(2):123[18]MochidaI,AndoT,MaedaKetal.CatalyticCarbonizationofAromaticHydrocarbons2ÌCarbonizationMechanismofHeterocyclicSulfurCompoundsLeadingtotheAnisotropicCoke.Carbon,1980,18(2):1312136[19]YouQingfei,SakanishiK,SunYNetal.PropertiesofVacuumResiduedFractionsfromAustaralianShaleOilsComparedwithaPetroleumBitumen.Fuel,1990,69(2):2672272[20]EesterS,JenkinsRG,DerbyshireFJ.CarbonizationofCokerFeedstocksandtheirFractions.Carbon,1986,24(1):77282[21]Rodeiguez2ReinosoF,SantanaP,PalazonERetal.DelayedCoking:IndustrialandLaboratoryAspects.Carbon,1998,36(1):1052116[22]MochidaI,ShimizuK,KoraiY.StructureandCarbonizationPropertiesofPitchesProducedCatalyticallyfromAromaticHydrocarbonswithBFöBF3.Carbon,1988,26(6):8432852[23]..:,1991.161THESTRUCTUREANDFEEDSTOCKSOFNEEDLECOKEZhangHuaipingLChunxiangLiKaixiLiuChunlinandLingLicheng(StateKeyLaboratoryofCoalConversion,InstituteofCoalChemistry,ChineseAcademyofSciences,030001Taiyuan)ABSTRACTThispaperreviewsthestructureandcharacteristicsofneedlecoke,andthecorrelationbetweenthestructureandpropertiesofneedlecoke.Thepaperprovidesanoverviewofthecompositionandstructureoffeedstocksthatleadingtoneedlecokewasneeded,andfocu2sesontheinfluenceonthestructureoffeedstocksontheformationofneedlecoke.Severalapp2roachestooptimizingthefeedstocksforcarbonizationarediscussed.KEYWORDSneedlecoke,structure,feedstocks622001