新型萃取填料的性能測試及研究.pdf

1、天津大學(xué)碩士學(xué)位論文新型萃取填料的性能測試及研究姓名：李健申請學(xué)位級別：碩士專業(yè)：化學(xué)工程指導(dǎo)教師：劉春江20070601ABSTRACTInthefnstpart，thecharacteristics，classificationandtechnologiesofliquidliquidextractionwereintroducedbrieflyAmongthemthedevelopmentofpackedtowerusedinex

2、tractionprocess，especiallyitsspecificpackingswerediscussedStandardextractionsystemsandcomplexextractiontheorywereconsultedTechniqueswhichdevelopedformeasuringtheflowandmasstransf色rcharacteristicsofextractiontowerinternal

3、swereintrodutedSomeofthemweredevelopedforacadernicanalysis，forexample，thesingledropletexperiment；someweredevelopedformeasuringthepackingperformanceInthesecondpart，discussionismainlylaidonaspecificstructuredpackingdevelop

4、edforliquidliquidextractionprocesswhichwascalledRhombusMeshFramePacking(RMFP)TheobservationanddiscussionaboutdropletbreakagecoalescenceprocessweregiveninsingledropletexperimentsRMFPlOmm—IDPallringand25mm—IDQH——1miniringa

5、scolumninternalswereperformedIntheexperiment，therelationshipbetweendropletdiameterandsizeofpinheadtheterminalvelocityofdropletinvoidcolumntogetherwithpackinganditseffectsonthebreakageratioandstationtimeofthedropleterewer

6、einvestigatedTheflowandbreakphenomenaofthedropletindifferentcolumninternalswereobservedBytheseobservations，someguidingrulesfordesignofextractioncolumninternals，suchaSCompoundStructuredPackings(CSP)，WasdevelopedThem砷parti

7、sfocusedonthemasstransferexperimentforRMFPTheexperimentwascarriedoutina50mmindiameterextractioncolumnComparativeexperimentWasearriedoutusingaparallelcolumnwhichpackedwith10mmIDPallring30％TBP(kerosene)一aceticacidwaterwass

8、electedasthetestsystemByconsideringequilibriumcurveandpackingvoidfraction，theapparentHeightofmasstransferunit(HTU)，holdupofdispersedphaseandfloodingholdupweremeasuredwithdifferentoperatingparameterssuchasflowratesofbothp

9、hasesExperimentalresultsshowedthattheHTUsofRMFPwerelowerthanPallringby20“30％，theholdupsofdispersedphasewerehigherthanPallringby30％andfloodingholdupwerehigherthanPallringby14％inaverageAfterlaboratoryscaleexperimentinthefo