赤泥脱硫剂净化低浓度硫化氢废气的试验研究

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1、昆明理工大学硕士学位论文赤泥脱硫剂净化低浓度硫化氢废气的试验研究姓名：姜怡娇申请学位级别：硕士专业：环境工程指导教师：宁平20030501昆明理工大学工学硕士学位论文ABSTRACTInthisstudy,theadsorbentspreparedbyredmudfromaluminumindusWywereconductedtop血母thewastegascontainedhydrogensulfidewiththelowconcentration．Thedesulfurizafionprocesswasfeaturedwi

2、thK曲purificationefficiency,simplepreparationmethod，andlowenergyconsumption,easetoregenerateandrecovertheelementarysulfur．Also，theavailableadsorbentsWeresuitedtoconu'olH2Spollution．Inthispaper,thecompletedexperimentalinvestigationonthepreparationofredmudadsorbentsand

3、thepurificationofthewastegascontainedlowconcentrationhydrogensulfidewerestudied，andtheresearchresultsachievedincluded：(1)Themaincomponentoftheadsorbentswereredmudfromaluminumindustrialwaste，whichcontained80％redmud，thedispersionagerI卜_SM一9at10％ofthemaincomponentweigh

4、tandtwoofactivatedagents---RClandROHbothat5％ofthemaincomponentwright。TheredmudwoatcwaterfromaluminumindustryWaSusedaSthewettingagentforthemixture．Granulesweremadeofthemixturebyextrudingthatweresubjectedtothermaltreamaentundertheappropriatetemperatureof350"(2for4hour

5、astherightcalcificationtime．thentheadsorbentsvvereprepared．(2)Thecharacterindexofredmudadsorbentswereasfollowing：thesurfaceareasof206．96m2／g,thetotalporevolumeof0．31cm3／g，theaverageporediameterof37A．theperpendicularintensityof7N／cm2，andthesideintensityof33N／cm2。(3)F

6、romtheexperimentalresults，itcouldbeconcludedthatasignificanteffectwasposedbytheoriginalconcentrationofhydrogensulfide,volumevelocity,desulphurationtemperature，oxygencontentandrelativehumidityoforiginalgas，thediameterandwatercontentofadsorbent．TheUSeofhi出concentratio

7、nH2S，lowvolumevelocity,normaltemperature，originalgascontainedmorethano．5％oxygenandcompletelysaturatedbywater．andsmalleradsorbentswith10--15％watercontentWasadvantageoust0theimprovementofpurificafionefficiency．(4)Throughthestudyofdesulphurationdynamics．thedesulphurati

8、onreactionⅥ，asoneorderandirreversiblereaction．Undertheconditionsofnormaltemperature,atthepresenceofwater,thelimiteddesulphumtedconcentrati