13PeroxIC4-FEED-SYST.SD-TO-T&I---CML-541

NOTE:ThisisforTrainingonly,andisnotintendedtobeusedasastepbystepprocedure.PO/MTBEISOBUTANEFEEDSYSTEMSHUTDOWNTOT&INOTE:ThisisforTrainingonly,andisnotintendedtobeusedasastepbystepprocedure.PO/MTBEIsobutaneFeedSystemShutdownToT&IPURPOSEAshutdowntoT&IoftheIsobutaneFeedSystemiswhenthecolumnfeedhasstopped,thesteamtothereboilerisstopped,alllevelsarepumpeddowntolessthan10%,andallpumpsareshutdown.Allvalvestoandfromthesystemaretobemanuallyclosed.AshutdowntoT&IisdonepriortoIsobutaneFeedSystemclearingandsafingprocess.CONDITIONSTheIsobutaneFeedSystemisshutdown.MaintenanceisrequiredontheIsobutaneFeedSystem.NOTE:ThisisforTrainingonly,andisnotintendedtobeusedasastepbystepprocedure.PO/MTBEGUIDELINE•MonitorOSBLIsobutaneStorageSphereflow.•ClosefeedcontrolvalveFV-10701onisobutanefromOSBLIsobutanesphere.•BlockupstreamblockvalveandbypassonFV-10701.•MonitorIsobutanefeedflowsfromthePeroxidationColumnsthroughFV-11702.•CloseFV-11702onfeedtodrum.•BlockupstreamblockvalveandbypassonFV-11702.IsobutaneFeedSystemShutdownToT&INOTE:ThisisforTrainingonly,andisnotintendedtobeusedasastepbystepprocedure.PO/MTBE•EnsureFV-16189onTBA/TBHPfromTBHPStorageTankisclosed.•BlockinupstreamblockvalveandbypassonFV-16189.•ShutdowntheOSBLIsobutaneFeedPumps•Close1thebatterylimitblockvalveonisobutanefromStorageSphere.•ClosethedownstreamvalveonFV-11702.•ClosebypassvalveonFV-11702.IsobutaneFeedSystemShutdownToT&INOTE:ThisisforTrainingonly,andisnotintendedtobeusedasastepbystepprocedure.PO/MTBE•ClosetheupstreamblockvalveonFV-16189onTBA/TBHPfromTBHPStorageTank.•DeinventoryIsobutaneFeedDrumtoPeroxidationReactors.•ShutdownOSBLDemineralizedWaterInjectionPump.•Opengatevalveonthetopinletof01D0107ontheIC4Recycleline.•PlaceLV-14917A/Binmanualwithoutputofzero.•RefertoIsobutaneFeedSystemClearingandSafingwhenthesestepshavebeencompleted.IsobutaneFeedSystemShutdownToT&I