17PeroxTBHP-TWR.-SYSTEM-SD-TO-T&I---CML-550

NOTE:ThisisforTrainingonly,andisnotintendedtobeusedasastepbystepprocedure.PO/MTBETBHPCONCENTRATIONCOLUMNSHUTDOWNTOT&INOTE:ThisisforTrainingonly,andisnotintendedtobeusedasastepbystepprocedure.PO/MTBETBHPConcentrationColumnSystemShutdownToT&IPurposeAshutdowntoT&IoftheTBHPConcentrationColumn01C0121Systemiswhenthecolumnfeedhasstopped,thesteamtothereboilerisstopped,alllevelsarepumpeddowntolessthan10%,andallpumpsareshutdown.Allvalvestoandfromthesystemaretobemanuallyclosed.AshutdowntoT&IisdonepriortoTBHPConcentrationColumn01C0121Systemclearingandsafingprocess.ConditionsThe2ndIC4RecycleColumnisshutdown.MaintenanceisrequiredontheTBHPConcentrationColumn01C0121System.TheTBHPconcentrationonbottomofTBHPConcentrationColumnanalyzerAC-12118islessthan2%beforecontinuingwiththisprocedure.NOTE:ThisisforTrainingonly,andisnotintendedtobeusedasastepbystepprocedure.PO/MTBEGUIDELINE•LineupandaddTBAFlushtothedischargeofTBHPConcentrationColumnReboilerPumps01P0196-A/B.•LineupandaddTBAFlushtothedischargeofTBHPConcentrationColumnBottomsPumps01P0116-A/B.•AsforwardflowtoTBHPConcentrationColumnisstopped,flushreboiler,column,pumpsandpipingwithTBAtoTBHPStorageTank01T0204.•EnsurethevalveonRecycleTBA/TBHPto1stIC4RecycleColumnisclosedatthebottomsmanifoldofthePeroxidationReactors.•VerifytheTBHPconcentrationonbottomofTBHPConcentrationColumnanalyzerAC-12118islessthan2%.TBHPConcentrationColumnSystemShutdownToT&INOTE:ThisisforTrainingonly,andisnotintendedtobeusedasastepbystepprocedure.PO/MTBE•Ensurethat2ndIC4RecycleColumnandPeroxidationReactorshavebeenshutdown.•CloseandblockinFV-11518onfeedlinetoTBHPConcentrationColumn.•CloseandblockinLV-11505onRecycleIsobutaneto01E0118.•EnsurethevalveonRecyclePeroxidatestreamfromTBHPConcentrationColumnBottomsCoolerisclosedatthestartupmanifoldjustdownstreamofLV-12117.•EnsurethevalveonrecycleTBA/TBHPupstreamofFV-11403to1stIsobutaneColumnisclosed.•TriptheS0.6steamto01E0116,shutdownthereboilercondensatepumps,anddeinventorycondensatefromthereboilerandcondensatepot.TBHPConcentrationColumnSystemShutdownToT&INOTE:ThisisforTrainingonly,andisnotintendedtobeusedasastepbystepprocedure.PO/MTBE•ShutdownTBHPColumnReboilerPump01P0196-A/B.•FlushthereboilerandpipingwithTBAflushintoTBHPConcentrationColumn.•CloseFV-12156onN7nitrogentoRefluxDrum01D0122.•Continuetorefluxcolumntocooltoweruntildrumisempty.•DeinventoryRefluxDrumtointotheTBHPConcentrationColumnthentoTBAPurificationColumn.•Shutdown01P0115-A/BTBHPConcentrationColumnrefluxpumps.•DeinventorycolumnleveltoTBHPStorageTank01T0204.•Shutdown01P0116-A/Bbottomspumps.•UseTBAtoflushlinesandequipmenttoblowdown.TBHPConcentrationColumnSystemShutdownToT&INOTE:ThisisforTrainingonly,andisnotintendedtobeusedasastepbystepprocedure.PO/MTBE•ShutdownTBHPConcentrationColumnVacuumPackage01K0131.•ShutdownTBHPConcentrationColumnVentCondenserPumps01P0154-A/B.•BlockinTV-12117TBAFlushcontrolvalvetothereboiler01E0116.•RefertoTBHPConcentrationColumn01C0121ClearingandSafingwhencomplete.TBHPConcentrationColumnSystemShutdownToT&I