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1、..OperationofplaterectificationtowerWUChang-xiang(HarbinGasificationPlant,Harbin154864,China)Abstract:Theinfluencingfactors,abnoimalphenomenonandrectificationprocesswereanalyzedtodirectactualoperationKeywords:rectificationtower,recification,reboiler,operationDistillationc
2、olumnisamulti-stagepartialvaporizationandpartialcondensationaccordingtothedifferentcomponentsinthemixturevolatilityineachfloortowerboardtoachievetheseparationofamixtureofvariouscomponentsofthetowergas-liquidcontactdevice,alsoknownasdistillation.Aplatecolumnandpackedcolumn
3、types.Accordingtomodeofoperationaredividedintocontinuousdistillationandbatchdistillation.Steamfromthebottomofthecolumnentry,andthedeclineinliquidcountercurrentcontactwiththetwoincontact,thedropinthevolatileliquid(lowboilingpoint)componentsiscontinuouslytransferredtotheste
4、am.Thedifficultyofsteamvolatile(highboiling)componentcontinuedtodeclineinthetransferofliquid,steamthecloserthetopofthetower,thehighertheconcentrationofitsvolatilecomponents,whilethedeclineintheclosertowerbottomliquid,itshardtobemorevolatilecomponentsrichset,toachievecompo
5、nentseparation.Steamrisingfromthetopofthetowerintothecondenser,theliquidpartofthecondensateasrefluxliquidtoreturnintothedistillationtower,therestisremovedasdistillate.Towerbottomoutflowofliquid,someofwhichintothereboiler,thermalevaporation,thesteambacktotower,andtheotherp
6、artoftheliquidasresiduarelease.Comparedwithotherchemicalunitoperations,distillationunit,althoughrelativelysimple,singleproductionrunthatoftenappearinavarietyofproblemsaffectingtheoperationofthedistillationunit,leadingtotowertoporbottomofproductfailure,severeconstraintsofp
7、roductionequipmenttheoperationresultinginproductloss.1.Regularchangesinprocessconditionsofdistillationcolumn1.1ReboilertemperatureWord完美格式..Underthesameoperatingpressure,raisingthetemperatureofthereboiler,thevolatilecomponentsinthetowerliquidtoreduce,atthesametime,therisi
8、ngvaporvelocityincreases,andhelptoimprovetheefficiencyofmasstransfer.Ifproductsfromthetopoftheto