燃煤过程中氯化氢控制机理研究

《燃煤过程中氯化氢控制机理研究》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、浙江大学硕士学位论文燃煤过程中氯化氢控制机理研究姓名：李琦申请学位级别：硕士专业：工程热物理指导教师：蒋旭光;岑可法20030101ABSTRACTChlorineiSallelement0fgreatenvironmentalInterestandchlorideiSoneofthepolIutioncontrollingspecies．CombustionofcoalisapotentialSOurce13fchlorideintheatmosphereandenvironment．Thestudyinthisp

2、ag}erwastbcusedOiltheemissionandremovalofHelfromcoalburning，whichwasgenerallythoughtasoneofkeycomponentsofairpollution．Theresearchresultswillbeofsignificanceforcoalutilization，chloridationpollutionappreciationandcontr01．ThreeissueshavebeenstudiedinthisPaDer：the

3、determinationofchlorinei11coal：thedistributionregularitiesoffluorineincoalsanditScharacteristicsduringconlcombustion；chlorideremoralbyblendinglimewithcoal．ThedeterminationofchlorineincoalisarealdifficultandchallengingworkCombustion-hydrolysis／ionchromatographym

4、ethodisthemostaccurate，preciseandsuccessfuImethodforthedeterminationofchtorineincoai．theinfluence白ctorsondeterminationofchlorineincoalsbycombustion—hydrolysis／ionchromatographymethodhavebeenstudiedsuchastemperature．timeofhydrolysis，oxygenflowrateandsampleweight

5、eta1．achievedtheoptimaldeterminationparametersandprectston·ConcentrationoffluorineintypicalcoalsfromChinahavebeendetermined．inordertObuildanationaldatabaseforchlorineofallkindsofcoalsfortheffltureresearch．andstudyexistingformS7ofchlorineandtheemissiondiscipline

6、ofh3’drochloriccompoundofrawcoals，Chlorineemissioncharacteristicsduringconlcombustionarestudiedsystemicallyintubefllrnaceforthefirsttime．TheiIlflueocefactorsonchlorineemissionandtherelationshipofchlorineemissionwithcoaltype．combustiontemperature，retentionperiod

7、andcombustionatmosphereareobtainedandtheproductionmechanismofgaseouschlorineduringcoalcombustionareproposed．ExperimentalresearchandthermodynamicanalysisaboutCaO．HCireactionathightemperaturearereposedinthispaper．ExperimentalresultshaveidentifledthatCa0or1imecanr

8、estraintheemissionofchlorineduringcoalcombustioninfixedbedandfluidizedbed．Ca／ClorCa／Smolarratioandcombustiontemperatureshowremarkableeffectontheefficiencyofchlorineremovalby