《工业分析 Industrial Analysis》课件-煤中碳和氢的测定（双语）

项目五:煤质分析任务三：煤的元素分析煤中碳和氢的测定课程：工业分析中文Scenario5:QualityanalysisofcoalsTaskThree:ElementalanalysisofcoalDeterminationofcarbonandhydrogenincoalCourse:IndustrialAnalysisEglish元素分析

主要测定煤中C、H、O、N、S等元素，了解煤的元素组成。元素分析的结果是对煤进行科学分类的主要依据。在工业上，是计算发热量、计算热量平衡的依据。煤中氧元素的含量不是测定，而是通过公式计算得到的：Oad=100-Cad-Had-Nad

-St,ad

-Mad-Aad

中文Elementalanalysis

ElementanalysismainlydetermineselementssuchasC,H,O,N,Sincoaltounderstandtheelementalcompositionofcoal.Theresultsofelementalanalysisarethemainbasisforscientificclassificationofcoal.Inindustry,itisthebasisforcalculatingheatgenerationandheatbalance.Thecontentofoxygenelementincoalisnotdetermined,butcalculatedthroughaformula:Oad=100-Cad-Had-Nad

-St,ad

-Mad-Aad

Eglish1、煤中碳和氢的测定原理称取一定量的空气干燥基煤样，在氧气流中燃烧，生成的水和二氧化碳分别用吸水剂和二氧化碳吸收剂吸收，由吸收剂的增重计算碳和氢的含量。中文1、TheprincipleofmeasuringcarbonandhydrogenincoalWeighacertainamountofairdriedcoalsampleandburnitinanoxygenflow.Thegeneratedwaterandcarbondioxideareabsorbedbywaterabsorbentandcarbondioxideabsorbent,respectively.Thecarbonandhydrogencontentiscalculatedbasedontheweightgainoftheabsorbent.Eglish2、测定仪器碳氢测定仪净化系统：洗气瓶、气体干燥塔、流量计燃烧系统：电炉、燃烧管、燃烧舟、保温套吸收系统：吸水管、吸CO2管、除氮管仪器组成中文2、measuringinstrumentHydrocarbonanalyzerPurificationsystem:gascylinderwashing,gasdryingtower,flowmeterCombustionsystem:electricfurnace,combustiontube,combustionboat,insulationsleeveAbsorptionsystem:moistureabsorptionpipe,CO2absorptionpipe,nitrogenremovalpipeCompositionofinstrumentsEglish洗气瓶：容量250~500mL，内装40%KOH或NaOH，除酸性气体气体干燥塔：容量500mL，CaCl2和碱石灰，除水和酸性气体流量计：量程为0~150mL/min电炉：分二节炉和三节炉，每炉都装有热电偶、测温和控温装置燃烧管：瓷、石英、刚玉或不锈钢制成，内径20~22mm，壁厚约2mm燃烧舟：瓷或石英制成，长约80mm保温套：铜管或铁管，长约150mm，内径大于燃烧管中文Washinggascylinder:capacity250-500mL,filledwith40%KOHorNaOH,toremoveacidicgasesGasdryingtower:withacapacityof500mL,filledwithCaCl2andalkalilimetoremovewaterandacidicgasesFlowmeter:measuringrangefrom0to150mL/minElectricfurnace:dividedintotwosectionsandthreesections,eachequippedwiththermocouples,temperaturemeasurementandcontroldevicesCombustiontube:madeofporcelain,quartz,corundumorstainlesssteel,withaninnerdiameterof20-22

mmandawallthicknessofapproximately2

mmBurningboat:madeofporcelainorquartz,approximately80

mmlongInsulationsleeve:Copperorirontube,approximately150

mmlong,withaninnerdiameterlargerthanthecombustiontubeEglish吸水U形管：内装无水氯化钙或氯化镁吸CO2U形管：2个，每个前2/3装碱石棉或碱石灰，后1/3装无水氯化钙或氯化镁除氮U形管：前2/3装二氧化锰，后1/3装无水氯化钙或氯化镁吸水U形管吸CO2和氮U形管中文WaterabsorbingU-shapedtube:filledwithanhydrouscalciumchlorideormagnesiumchlorideinsideCO2suctionU-shapedtubes:2pieces,eachwith2/3ofalkaliasbestosoralkalilimeinthefrontand1/3ofanhydrouscalciumchlorideormagnesiumchlorideinthebackNitrogenremovalU-shapedtube:thefirst2/3isfilledwithmanganesedioxide,andthelast1/3isfilledwithanhydrouscalciumchlorideormagnesiumchlorideWaterabsorbingU-shapedtubeCO2absorptionandnitrogenoxideremovalU-shapedEglish准备步骤吸收系统各容器的充填和连接燃烧管的填充炉温校正3、实验准备净化系统各容器的充填和连接2341中文PreparationstepsFillingofcombustiontubesFurnacetemperaturecorrection3、ExperimentalpreparationFillingandconnectionofvariouscontainersinthepurificationsystem2341FillingandconnectionofvariouscontainersintheabsorptionsystemEglish1-铜丝卷；2-氧化铜；3-铬酸铅；4-银丝卷1-橡皮帽；2-铜丝卷；3-铜丝布圆垫；4-保温套管；5-高锰酸银热解产物；6-瓷舟三节炉的填充二节炉的填充中文1.Copperwireroll;2-copperoxide;3-leadchromate;4-silverwireroll1.Rubbercap;2-copperwireroll;3-copperwireclothroundpad;4-insulationsleeve;5-silverpermanganatepyrolysisproduct;6-porcelainboatFillingofthreesectionstovesFillingoftwo

sectionstovesEglish4、样品测定

一、二节800±10℃

，三节600±10℃称0.2g粒径小于2mm煤样，上铺一层Cr2O3燃烧炉升温燃烧舟称样

接上系统，O2流速120mL/min燃烧通氧燃烧燃烧结束，将吸水管、吸CO2管称重

称量中文4、sampledetermination

Firstandsecondsectionfurnacesat800±10℃,andthirdsectionfurnacesat600±10℃Weigh0.2

gcoalsamplewithparticlesizelessthan2

mmandlayalayerofCr2O3ontopRaisethetemperatureofthecombustionfurnaceWeighthesampletotheburningboatConnectthesystemandcontroltheO2flowrateto120mL/minforcombustionInjectoxygenandburnAfterthecombustioniscompleted,removethesuctionpipeand

CO2suctionpipean