TBA-CAT-RESIDUE-EVAP.-START-UP-614

NOTE:ThisisforTrainingonly,andisnotintendedtobeusedasastepbystepprocedure.PO/MTBECATALYSTRESIDUEEVAPORATORSYSTEMSTARTUPFROMT&INOTE:ThisisforTrainingonly,andisnotintendedtobeusedasastepbystepprocedure.PO/MTBEPurposeThepurposeofthisprocedureistopreparetheCatalystResidueEvaporatorSystemtoreceivefeedfromupstreamequipmentfollowingmaintenance.Thesystemwillneedtoinitiallyacceptenoughfeedmaterialfromupstreamequipmenttoestablishatotalrefluxconditionoftheequipmentbeingstartedup.TheactofplacingthesystemintotalrefluxistoapplytheproperamountofreboilersteamflowtocreateenoughvaporsintheoverheadsystemtomaintainasteadyandcontinuousrefluxflowratewhiletherefluxdrumlevelcontrollerisinAutomaticcontrol.Conditions•TheCatalystResidueEvaporatorSystemhasbeenrepairedandtheequipmentisreadytoreturntoservice.CatalystResidueEvaporatorSystemStartupfromT&INOTE:ThisisforTrainingonly,andisnotintendedtobeusedasastepbystepprocedure.PO/MTBENOTE:Airoroxygencanformapotentiallyexplosivemixturewithhydrocarbons,therefore,nitrogenpurgeallprocesslinesandequipmenttoatmosphereuntilprocesslinesandequipmentislessthan3%oxygen.Donotnitrogenpurgetotheblowdownsystemortheflaresystem.NOTE:TBAmayfreezeandsolidifyattemperaturesbelow25˚C.Asequipmentisshut-downorblocked-inorwhenflowisstopped,ensureTBAisremovedfromlinesandequipmentifnotheattraced.Thisconditioncancauseunnecessarydowntimeordamagetotheequipment.Theoverheadlinesarenotheattraced.CatalystResidueEvaporatorSystemStartupfromT&INOTE:ThisisforTrainingonly,andisnotintendedtobeusedasastepbystepprocedure.PO/MTBE•ColumnandassociatedequipmenthasbeenpressuretestedaspertheTightnessTestingofProcessEquipmentprocedure.•Lineupthecoolingwaterontheoverheadcondenser01E0368.•EnsurethebypassvalvearoundtheoverheadventvalvePV-39011isclosed.•EnsurethevacuumpackagecontrolvalvePV-39011isclosed.•LineupthevacuumpackagecontrolvalvePV-39011.•EnsureventlinefromtheoverheadcondensertoPV-39011isclosed.•LineuptheventlinefromtherefluxdrumtoPV-39011.•EnsurethebypassvalvearoundtheoverheaddistillatecontrolvalveLV-39017Bisclosed.•EnsuretheoverheaddistillatecontrolvalveLV-39017Bisclosed.•LineupoverheaddistillatecontrolvalveLV-39017B.CatalystResidueEvaporatorSystemStartupfromT&INOTE:ThisisforTrainingonly,andisnotintendedtobeusedasastepbystepprocedure.PO/MTBE•LineuptheoverheaddistillatecontrolvalveLV-39017Btoprocessfuel.•EnsuretheblockvalveonthedischargesideoftheTBAPurificationOverheadPump01P0357-A/BusedforacetoneflushoftheResidueEvaporatorFlashDrumlevelindicatorLT-39017AisclosedatdischargeofTBAPurificationOverheadPump.•LineuptheResidueEvaporatorDistillatePumps01P0365-A/Basrequired.•EnsurethebypassvalvearoundthebottomscontrolvalveLV-39017Aisclosed.•EnsurethebottomscontrolvalveLV-39017Aisclosed.•EnsurethebypassvalvearoundthebottomseffluentflowelementFE-03049isclosed.•LineupthebottomseffluentflowelementFE-39019.•Lineupbottomspumps01P0364-A/Basrequired.•DrainthesteamcondensatefromtheS4steamheaderupstreamofResidueEvaporatorExchanger01E0371-A/Bmanualblockvalve(oneexchangerisusedasspare).CatalystResidueEvaporatorSystemStartupfromT&INOTE:ThisisforTrainingonly,andisnotintendedtobeusedasastepbystepprocedure.PO/MTBE•LineupinletsteamvalvesonResidueEvaporatorExchanger(onlylineuptheexchangerthatistobeused,theotherexchangerisusedasspare).•LineupoutletcondensatevalvesontheResidueEvaporatorExchanger01E0371-AorBtotheResidueEvaporatorCondensatePot(onlylineuptheexchangerthatistobeused,theotherexchangerisusedasspare).•LineupbalancinglinesteamvalveontheResidueEvaporatorCondensatePot.•EnsurethebypassvalvearoundthecondensatecontrolvalveTV-39001isclosedthecondensatepot.•EnsurethecondensatecontrolvalveTV-39001isclosed.•LineupthecondensatecontrolvalveTV-39001.•Verifytheheattracingisonandreadyfor25°CTBAtobeintroducedtothecolumn.•EnsurethebypassvalvearoundthefeedcontrolvalveFV-34218isclosed.CatalystResidueEvaporatorSystemStartupfromT&INOTE:ThisisforTrainingonly,andisnotintendedtobeusedasastepbystepprocedure.PO/MTBE•EnsurethefeedcontrolvalveFV-34218isclosed.•LineupthefeedcontrolvalveFV-34218.•Ensurethat40mmvalveonthedischargeof01P0364-A/BthatfeedsintotheCatalystRecycleSurgeDrumisclosed.•NotifyConsoleOperatorCatalystResidueEvaporatorSystemisreadyforfeed.CatalystResidueEvaporatorSystemStartupfromT&I