电子束辐照烟气脱硫工艺及副产物收集的实验研究

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1、大连理工大学硕士学位论文电子束辐照烟气脱硫工艺及副产物收集的实验研究姓名：杨睿戆申请学位级别：硕士专业：环境工程指导教师：吴彦20040601AbstraotThefluegasdesulphurationanddenitrationtechnologywithelectronbeamirradiation(ab．EBP)isregardedasapromisingmethodbecauseithasadvantagesovertraditionaltreatmentforfluegas．Therearesomebottleneckswh

2、ileEBPhasbeenapplied．Thebomeneeksareasfollowing：makinghigh-powerelectronaccelerator,optimizingtechnicalparametersandcollectingby—product．ExperimentalstudyontechnicalparametersofEBPandcollectingby—productwerecarriedoutonthepilotplantofChinaAcademyofEngineeringPhysicsinMian

3、yangSichuanpmvinco．Themainexperimentalconclusionsaresummarizedbelow：1．ThemainfactorswhichaffectdeS02efficiencyarefollowing：addingammomastoichiometric(矗州3)’electronbeam’Sdose(dose)，temperature(t)offluegasininletofreactorandhumidity(v％)offluegasiniIlletofreactor；2．ThedeSOze

4、fficiencyCanreaches80％andthedeNOxefficiencyismolethan20％．whichexperimentalconditionsaredescdbedasfollowing：addingammo吐astoichiometrcffNH3)isO．80--1．O；andelectronbeam’Sdoseismorethan4．5kGy，andtemperatureoffluegasininletofreactorisabout65℃；andhumidityoffluegasininletofreact

5、oris8～12．5％(v)；3．Thecharactersofby-productareanalyzed．Diametersofmostpowderarelessthanlpm，andaveragediameterofby-productpowderis0．1LLm．Theshapeofby·productpowderisroundrIessornearroundness；4．Differentcorollawiresandcollectingplatesarcinvestigated．Sawtoothshapecoronawireha

6、sadvantagessuchaslowcorollavoltage，highsparkvoltage，widerunningextent,bigcurrentdensityfromsinglecoronawireandstrongadjustabil姆tochangingpowder’Sconcentration；480C·typeplateisused,andithasadvantagesasfollowing：morecollectingarea,littlepowderoftheplatesreturningfluegasandv

7、elocityoffluegasbeingmorethanO．8m／s．5．Withthesuitablecoronawiresandcollectingplates，themosteffectivevelocitythatcausedbyforceofelectricfieldofby-productparticlesin2mzelectrostaticprecil：Iitatoris0．279m／s；Inthecondition，themaxofcollectingefficiencyis99-2％whencollectingby-p

8、roductisusedtwoelectricfieldselectrostaticprecipitator；6．Acurrentpowerisbetterthanasilicon—contr