灼烧方式对稻壳灰形貌特征和成分的影响

20134444doi10．6041/j．issn．1000-1298．2013．04．024*121211．1500012．110136。。575℃SiO2815℃SiO2。TK6S216．2A1000-1298201304-0131-06EffectofCalcinationMethodonMorphologicalCharacteristicsandCompositionofRiceHuskAshLiHongtao12LiBingxi1XuYouning2GaoXiaoyan11．SchoolofEnergyScienceandEngineeringHarbinInstituteofTechnologyHarbin150001China2．KeyLaboratoryofCleanCombustionforElectricGenerationandHeatSupplyTechnologyofLiaoningProvinceShenyangInstituteofEngineeringShenyang110136ChinaAbstractInordertoobtainthebestprocessforricehuskcombustionthemorphologicalcharacteristicsandcompositionofricehuskashRHAwerestudiedbychangingcalcinationtemperatureandresidencetime．TheresearchonmorphologycharacteristicsshowedthatthecarboncontentofRHAwaslowerwhenadoptedthemodeoffirstlowertemperaturecombustionthenhighertemperaturecombustion．ThemicroscopicmorphologyofRHAwasdifferentbyusingdifferentcalcinationmethods．TheparticlesizeofRHAbydirecthighertemperaturecombustionwassignificantlylargerthanthatbyothermethods．ForthecomponentofRHAthemainingredientofRHAwasamorphousSiO2bylowertemperature575℃combustionwhilesilicaformcrystalwhenpreparationprocessexistedinhighertemperature815℃combustionstageandthepotassiumcontentofRHAwasrelativelylowerbyusingthemodeoffirstlowertemperaturecombustionthenhighertemperaturecombustion．KeywordsRicehuskashCalcinationmethodMorphologicalcharacteristicsCompositionGrayvalue2012-10-172012-11-22*[e-mail][e-mail]20%13%～29%1～8。9～15。。Krishnarao620KK2OK16Chandrasekhar500～1000℃171817、500～700℃。650℃650℃19。17。。11.11。PARR-6200GB/T213—200314.35MJ/kg。GB/T212—2008KSZN-K8。VarioELIII1。1Fig．1Sizedistributionofricehuskpowder1.211.5±0.02g60mm×30mm1Tab．1Proximateanalysesandultimateanalysesofricehusk%MarAarVarCdHdOdNdSd6.816.963.740.345.2635.620.540.11ard。KSZN-K8。275℃、575℃815℃32。Quanta200FFEI20kV1000。XRD-6000XXCuαλ=1.541840.0kV50.0mA0.15000mmθ～2θ5.0000°/min0.0200°。Quanta200FEDX、、。2Tab．2Calcinationsmethodofriceashformationbychangingtemperatureandresidencetime/℃/min275℃275～575℃575℃575～815℃815℃130P120NN227530P120NN32750P120NN430P0P120527530P0P12062750P0P1207815NNN1208815NNN15090P150NN10575NN150NNNP。22.13。3417.12%318.54%3、91023120133Tab．3Yieldofricehuskashbydifferentcalcinationmethodsdrybasis12345678910/%18.1018.2118.5417.1217.3518.0818.1317.9918.4618.47。。2.22。32255255。2341、45293、61078。275℃30min29275℃575℃275℃。275℃20。19650℃275℃650℃。2.341000。575℃1、2、3、91050μm784、56。2Fig．2Macro-morphologyofRHAbydifferentpreparationmethods3Fig．3GrayvalueofRHAbydifferentpreparationmethods2.45XRD。4～8ICDDPDF39-1425SiO2P4121292。、。6XRD。62θ22°575℃SiO2。XRDSiO233144SEMFig．4SEMmicrographsofRHAbydifferentpreparationmethods。EDX。7。EDX4.5%～9.5%。454.5%789.5%。5XRDFig．5XRDpatternofRHAwithhighertemperaturecombustiona4b5c6d7e8fP4121292。8。84、563%6%。575℃。575℃。。43120136XRDFig．6XRDpatternofRHAwithouthighertemperaturecombustiona10b9c3d2e17EDXFig．7RelationshipbetweengrayvalueandcarboncontentusedEDXanalysisSiO2。8EDXFig．8PotassiumcontentusedEDXanalysis31。2575℃。3575℃50μm。4575℃SiO2815℃SiO2。5。6575℃575℃。7SiO2。1．J．201041196～100．SunLiangSunQingJieXinetal．MaintechnologicalparametersofricehullhotbriquettingJ．TransactionsoftheChinese5314SocietyforAgriculturalMachinery201041196～100．inChinese2．J．199122397～99．3RozaineeMNgoSPSalemaAA．Effectoffluidisingvelocityonthecombustionofricehuskinabench-scalefluidisedbedcombustorfortheproductionofamorphousricehuskashJ．BioresourceTechnology2008994703～713．4PrasetyokoDRamliZEndudSetal．ConversionofricehuskashtozeolitebetaJ．WasteManagement200626101173～1179．5NehdiMDuquetteJDamattyAE．PerformanceofricehuskashproducedusinganewtechnologyasamineraladmixtureinconcreteJ．CementandConcreteResearch20033381203～1210．6ChandrasekharSPramadaPN．Ricehuskashasanadsorbentformethyleneblue—effectofashingtemperatureJ．Adsorption200612127～43．7KordatosKGavelaSNtziouniA．SynthesisofhighlysiliceousZSM-5zeoliteusingsilicafromricehuskashJ．MicroporandMesoporMaterials20081151～2189～196．8ChandrasekharSPramadaPNMajeedJ．EffectofcalcinationtemperatureandheatingrateontheopticalpropertiesandreactivityofricehuskashJ．JournalofMaterialsScience200641237926～7933．9．J．2010396631～634．ChenLongGaoFengHuangFeietal．ResearchprogressinpreparationofactivatedcarbonandsilicafromricehuskJ．LiaoningChemicalIndustry2010396631～634．inChinese10NairDGFraaijAKlaassenAAKetal．AstructuralinvestigationrelatingtothepozzolanicactivityofricehuskashesJ．CementandConcreteResearch2008386861～869．11．J．201035335～37．12．J．2011395123～127．ChenYingquanWangXianhuaQianKezhenetal．InfluenceofpyrolysisandcombustingtemperatureoncharacteristicsofricehuskashJ．JournalofHuazhongUniversityofScienceandTechnology2011395123～127．inChinese13PayaJMonzoJBorracheroMVetal．DeterminationofamorphoussilicainricehuskashbyarapidanalyticalmethodJ．CementandConcreteResearch2001312227～231．14SrivastavaVCMallIDMishraIM．OptimizationofparametersforadsorptionofmetalionsontoricehuskashusingTaguchi'sexperimentaldesignmethodologyJ．ChemicalEngineeringJournal20081401～3136～144．15ChatveeraBLertwattanarukP．Evaluationofsulfateresistanceofcementmortarscontainingblackric