19TBAFORMATE-DESTRUCTION-RX.EMERG.SD-554

NOTE:ThisisforTrainingonly,andisnotintendedtobeusedasastepbystepprocedure.PO/MTBEFORMATEDESTRUCTIONREACTORSYSTEMEMERGENCYSHUTDOWNPROCEDURENOTE:ThisisforTrainingonly,andisnotintendedtobeusedasastepbystepprocedure.PO/MTBEFORMATEDESTRUCTIONREACTORSYSTEMEMERGENCYSHUT-DOWNPROCEDURELOSSOFDEMINERALIZEDWATERONLY•Thisprocedureisperformedunderthefollowingconditions:•lossofdemineralizedwatertotheTBAfeedNOTE:DEMINERALIZEDWATERMUSTBEADDEDTOANYTBATHATISTOBEFEDTOTHEFORMATEDESTRUCTIONREACTORSYSTEM.INSUFFICIENTWATERCANCAUSEIRREVERSIBLEDAMAGETOTHECATALYST.NOTE:ThisisforTrainingonly,andisnotintendedtobeusedasastepbystepprocedure.PO/MTBEFORMATEDESTRUCTIONREACTORSYSTEMEMERGENCYSHUT-DOWNPROCEDUREGUIDELINE•CloseFV-38021onTBAfeedfromCrudeTBATank.•CloseFV-38090onDemineralizedwatertoTBAfeed.•CloseFV-38091onHydrogentoTBAfeed.•CloseS15steamvalvetopreheaterusingFV-38030.•IfAlcoholRecycleColumnoverheadisstillflowingthroughshellsideof01E0310-A/B.Needtoopenby-passaroundshellsideof01E0310-A/Btoavoidbuildingpressureintubesideof01E0310-A/B.•MONITORoverheadtemperatureusingTI-38013•PlacetheTBAFeedFractionationColumnontotalreflux.Adjustreboilersteamandrefluxflowascolumnconditionsrequire.•OperatepurgetoLPventgastocontrolcolumnpressureasnecessary.•Prepareline-uptobypassFormateDestructionReactorifwaterflowcannotberestored.TBAflowwillnowbefrom01E0312tothePeroxideNOTE:ThisisforTrainingonly,andisnotintendedtobeusedasastepbystepprocedure.PO/MTBEFORMATEDESTRUCTIONREACTORSYSTEMEMERGENCYSHUT-DOWNPROCEDURE•NotifyConsoleOperatorthattheFormateDestructionReactoristobeby-passed.•By-passFormateDestructionReactor.Therearetwoseparatelinesthatwillby-passthereactor,eitheronewillwork.Openby-passvalveonbottomofreactorandconnectedvalveontheReactoreffluentendofthesameby-passline.•Closeinletlineonbottomofreactor,closevalveonbottomofreactorthatislocatednearesttothereactor.•Asfeedisre-establishedtotheTBAFeedFractionationColumn,returnconditionstonormaloperation.•MonitorMTBERecoveryColumnoverheadMethylFormateConcentrationclosely.IncreasecausticflowtotheeffluentstreamoftheMTBEOne-StepReactors.NOTE:ThisisforTrainingonly,andisnotintendedtobeusedasastepbystepprocedure.PO/MTBEFORMATEDESTRUCTIONREACTORSYSTEMEMERGENCYSHUT-DOWNPROCEDURE•MonitorpHontheMethanolExtractorwaterfeed.AdjustcausticflowtocontrolpHinnormalrange.NOTE:ITISEXTREMELYIMPORTANTTHEMETHYLFORMATECONCENTRATIONANDPHARECONTROLLEDINTHEMTBESYSTEM.SEVERECORROSIONWILLOCCURINCARBONSTEELPIPINGIFBOTHMETHYLFORMATEANDPHARENOTCONTROLLEDPROPERLY.