可再生胺类吸收剂烟气脱硫的研究

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1、南京理工大学博士学位论文可再生胺类吸收剂烟气脱硫的研究姓名：翟林智申请学位级别：博士专业：化学工程与技术指导教师：钟秦20100401Abstract博士论文AbstraetAminewetfluegasdesulfurizationcallrecoversulfur．Adoptingthesimulatedfluegas，thebeRerabsorbentsformulationandtheoptimalabsorptionanddesorptionconditionsof802werestudied、析tllalTlinesolutions．Theoxidationkin

2、eticequationsofethylenediaminesolutionwerepresentedthroughthemothodofseriesrate．Aseriesofhydroxylammoniumionicliquidsweresynthesizedbywater-bathmicrowave．11lcappropriateabsorptionanddesorptionconditionswereobtained．TheS02absorptionprocess、^，imILsWassummarizedusingstructuralcharacterization．

3、Firstly,theabsorptionanddesorptionofS02experimentswerecarriedoutinabatchapparatusbyserotonin，hinderedamines，hydramineandethylenediamine．mresultsshowedthatethylenediaminehashi．ghS02absorptioncapacityandgooddesulfurizationefficiency．Addingacidadditives，S02availableabsorptioncapacitysharplyinc

4、reasesandtheanti—oxidationoftheabsorbentsenhances．Intencycles，themeandesulfurizationefficiencyofethylenediamine／boricacidandethylenediamine／phosphoricacidabsorbentsWas99％．，nledesorptionefficiencyofS02Wasover90％inthelatterninecycles．111eremovalofS02wi也ethylenediamineCallbeintensifiedbyadding

5、boricacidandphosphoricacid．11圯experimentalresultsshowedthatethylenediamine／boricacidsolutionhashigherS02availableabsorptioncapacityandbeneroxidationresistance．111esuitableconditionsforS02absorptionwithethylenediamine／boricacidsolutionwerefollowing：absorptiontemperatureWas30℃，theinitialconce

6、ntrationofethylenediamineWas0．3tool·L-1，pHvalueoftheabsorbentWaSabout8．5．neappropriatedesorptiontemperatureWas103"C，anddesorptiontimeWas60min，theinitialpHvalueofS02-absorbedabsorbemsWas5．504-O．15．Secondly,thecontinuousabsorptionofS02withethylenediamine／phosphoricacidandethylenediamine／boric

7、acidwereconductedinpackedcolumn．ThedesulfurizationefficiencyCanreach97％underpHvalueoftheabsorbents6．0--。7．0，andliquid-gasratioO．82L‘m_’．Ethylenediamine／boricacidsolutionwasmoresuitableforawiderangeofS02concentrationandgasflowrate．nepackingabsorptioncolum