三相鼓泡塔中4a分子篩微粒強化醇水傳質(zhì)行為的研究

1、天津大學(xué)碩士學(xué)位論文三相鼓泡塔中4A分子篩微粒強化醇水傳質(zhì)行為的研究姓名：呂東來申請學(xué)位級別：碩士專業(yè)：化學(xué)工程指導(dǎo)教師：許春建20040101AbstractBasedondistillationprocess，theinfluenceof4AmolecularsieveonaqueousalcoholmasstransferWasexperimentallystudiedinathreephasebubblecolumnwith30

2、ramindiameterand600mminheightThefineparticlesusedinexperimentare4Amolecularsievewithdiameterinthescaleof047pm～40proTheseparatedsystemsaretertbutylalcoholwaterandisopropylalcoholwaterTherelationshipbetweenthesolidparticle

3、sandsurfacetension／apparentviscositywasseparatelyapproachedInaddition，byusingthemeasuredmolarconcentrationofgasandliquidphaseoutput，theinfluenceofgassuperficialvelocitysolidcontentandmeanparticlediameterongasliquidmasstr

4、ansferWasanalyzedindetailInordertofurthercharacterizethemasstransferphenomenaintheslurrysystem，allAxialDispersionModelmodelwasadoptedtocalculatetheoverallliquidphasemasstransfercoefficientsunderdifferentsuperficialgasvel

5、ocities，solidcontentandparticlediametersItWasfoundthattheoverallliquidphasemasstransfercoefficientscouldbeenhancedbyparticlesinlowsolidcontentandwouldreachapeakwiththeincreasingofsolidcontentThenthemasstransfercoeffcient

6、swoulddecreasewiththeincreasingofsolidcontentTheehancementeffectwouldbestrenthenedwi廿1thedecreasingofparticlediametersTheinfluencingmechanismoffineadsorbentparticlestogas—liquidmasstransferwasdisscussedAndmoreovertheeffe

7、ctsofsuperficialgasvelocities，solidcontentandparticlediametersonthemixabilityofgas—liquidincolumn，bubblediametergasholdup，interfacialareaofmasstransferandadhesionefficiencyetalvvereseparatelystudiedKeywords：threephasebub