TBA-REMOVAL-TWR.SU-FROM-STANDBY-624

NOTE:ThisisforTrainingonly,andisnotintendedtobeusedasastepbystepprocedure.PO/MTBETBAREMOVALCOLUMNSTARTUPFROMSTANDBYNOTE:ThisisforTrainingonly,andisnotintendedtobeusedasastepbystepprocedure.PO/MTBETBARemovalColumnStartupFromStandbyPurposeThepurposeofthisprocedureistostartuptheTBARemovalColumnSystemfromastandbycondition.ConditionsTheTBARemovalColumnSystemisinthestandbymode.Thesystemisintotalrefluxinpreparationtoreceivefeed.NOTE:TBAmayfreezeandsolidifyattemperaturesbelow25°C.Asequipmentisshutdown,blocked-in,orwhentheflowisstopped,ensureallTBAisremovedfromthelinesandequipmentifitisnotheattraced.Thisconditioncancauseunnecessarydowntimeordamagetoequipment.Theoverheadlinesarenotheattraced.NOTE:ThisisforTrainingonly,andisnotintendedtobeusedasastepbystepprocedure.PO/MTBETBARemovalColumnStartupFromStandbyGUIDELINE•Ensurethevacuumpackageisoperatingproperly•OpenFV-25218AwithFC-25218AtostartfeedforwardtotheTBARemovalColumnasEpoxidationReactorislineduptobeginforwardflow.•Adjusttherefluxratetocorrectsetting.•MonitorthecolumnfeedflowusingFC-25218Aintheautomaticmode.•MonitortheoverheadpressureusingPC-37704whilereturningtonormaloperations.•Monitorthesealflushtothevacuumpackage.•VisuallyinspecttheTBARemovalsystemforleaksanddefects.NOTE:ThisisforTrainingonly,andisnotintendedtobeusedasastepbystepprocedure.PO/MTBETBARemovalColumnStartupFromStandby•Verifytheoperatingconditionssuchasflows,level,temperaturesorpressureswiththeControlOperatorasneeded.•EstablishTBAflowoverheadfromtheTBARemovalColumntotheCrudeTBATankandtheDryTBATankasinstructedbytheConsoleOperatorbyopeningblockvalves.•EstablishTBAflowfromthesidedrawontheTBARemovalColumntothe2ndIC4RecycleColumn01C0115.•LineUpTBAflowfromthesidedrawontheTBARemovalColumntothe2ndStagePrimaryFractionationColumn01C0252toflushTBAinsidedrawline.•RefertoTBARemovalColumnSystemControlLoopNarrative.