5PEROX-SU-STANDBY---CML-583

NOTE:ThisisforTrainingonly,andisnotintendedtobeusedasastepbystepprocedure.PO/MTBEPEROXIDATIONSEPARATIONAREASTARTUPFROMSTANDBYNOTE:ThisisforTrainingonly,andisnotintendedtobeusedasastepbystepprocedure.PO/MTBEPeroxidationSeparationAreaStartupFromStandbyPurposeThepurposeofthisprocedureistostartupthePeroxidationSeparationAreafromastandbycondition.ConditionsThePeroxidationSeparationAreaisinthestandbymode.Thesystemisintotalrefluxinpreparationtoreceivefeed.NOTE:ThisisforTrainingonly,andisnotintendedtobeusedasastepbystepprocedure.PO/MTBEGUIDELINE•Lineup1stIsobutaneRecycleColumnfeedfromthereactorthatisreadytofeedforward.•CloseblockvalvetostartupmanifoldfromtheTBHPConcentrationColumnbottomstoclearthislinefromtower.•Slowlyopenreactorfeedvalvetobeginperoxidatefeedtothe1stIC4column.•Adjuststeamflowasrequiredtomaintainboil-upon1stIC4column.•Placethefeedcontrollerto2ndIC4Columntoautomaticwithsetpointbeingresetbylevelcontroller.•Placepropylenerefrigerantflowto1stIC4ventcondenser01E0111onlevelcontrolwithsetpointbeingresetbytemperaturecontroller.PeroxidationSeparationAreaStartupFromStandbyNOTE:ThisisforTrainingonly,andisnotintendedtobeusedasastepbystepprocedure.PO/MTBE•Placepropylenerefrigerantflowto2ndIC4ventcondenser01E0114onlevelcontrolwiththesetpointbeingresetbythetemperaturecontroller.•Setrefluxflowto1stIC4ColumncontrollerFC-11406atdesiredrateandplaceinautomaticcontrol.•Monitortemperatureprofileon1stIC4columntooptimizeisobutaneincolumnoverhead.•Placepropylenerefrigerantflowtooverheadcondenser01E0112onlevelcontrol.•PlacePropyleneReturnfrom01E0112inauto/cascadecontrol.•Establishfeedforwardflowto2ndIC4RecycleColumn.PeroxidationSeparationAreaStartupFromStandbyNOTE:ThisisforTrainingonly,andisnotintendedtobeusedasastepbystepprocedure.PO/MTBE•PlaceflowcontrollerforTBAfromTBARemovalColumnto2ndIC4RecycleColumnincascadecontrolfromHandController.•Placeflowandlevelcontrollersinautomaticwithpropersetpointsfornormaloperatingconditions.•Set2ndIC4Columnrefluxflowcontrolleratdesiredrateandplaceinautomaticcontrol.•Monitortemperatureprofileoncolumnto2ndIC4optimizeTBHP/TBAincolumnbottoms.•EstablishfeedforwardflowtoTBHPConcentrationtower.•EnsurevacuumpackageisoperatingbeforestartingTBHPfeedtocolumn.PeroxidationSeparationAreaStartupFromStandbyNOTE:ThisisforTrainingonly,andisnotintendedtobeusedasastepbystepprocedure.PO/MTBE•LineupTBHPConcentrationColumnbottomsflowcontrollertoTBHPStorageTank01T0204.•LineupTBATemperatureController.•LineupTBHPConcentrationColumnVacuumPackagekickbackvalve.•Adjustsetpointofthevacuumpackagepressurecontrollertonormalsettingandplaceinautomaticcontrol.•Continuefeedingcolumnfrom2ndIC4RecycleColumnthroughflowcontrolleronTBA/TBHPfeedtoTBHPConcentrationColumn.•AdjuststeamflowtoTBHPConcentrationColumnasrequiredtomaintainboil-uponcolumn.•Openbottomscontrolvalvewhenthebottomstemperatureis88°CorwhenTBHPconcentrationis50%.PeroxidationSeparationAreaStartupFromStandbyNOTE:ThisisforTrainingonly,andisnotintendedtobeusedasastepbystepprocedure.PO/MTBE•PlaceTBHPConcentrationColumnBottomsPumpskick-backflowcontrollerinauto/cascadecontrol.•SetTBHPConcentrationColumnrefluxflowcontrolleratdesiredrateandplaceinautomaticcontrol.•PlaceTBHPConcentrationColumnoverheadflowcontrollerinauto/remotewithsetpointbeingresetbylevelcontroller.•Placeanalyzercontrolinauto/cascadetoTBHPConcentrationColumnbottomstemperaturecontroller.•MonitorTBHPandTBAconcentrationincolumnbottoms.•Adjustflowstorequiredrateswhenallcolumnsstabilize.PeroxidationSeparationAreaStartupFromStandby