07EPOX.SWITCHING-116-A---CML-523

NOTE:ThisisforTrainingonly,andisnotintendedtobeusedasastepbystepprocedure.PO/MTBESWITCHINGFROMHPFIRSTSTAGEPROPYLENEFEEDPUMP01P0216-ATO01P0216-CINTO01J0217-AGUIDELINENOTE:ThisisforTrainingonly,andisnotintendedtobeusedasastepbystepprocedure.PO/MTBESwitchingFromHPFirstStagePropyleneFeedPump01P0216-ATo01P0216-CInto01J0217-AGuidelinePurposeThefollowingprocedurewillbeusedwhensimultaneouslyplacing01P0216-ConlineintoEpoxidationRecycleJetPump01J0217-Aandremoving01P0216-Afrom01J0217-Ajetintofullkickbackwhen01P0216-Aisneedofrepairs.Byfollowingthisprocedure,propyleneflowto01J0217-Ashouldremainconstantthroughoutthedurationoftheswitchingprocess.Conditions•HPFirstStagePropyleneFeedPump01P0216-Aisneedofrepairs•HPFirstStagePropyleneFeedPump01P0216-Cisrunningandonfullkickback•HPFirstStagePropyleneFeedPump01P0216-Aison-lineandfeeding01J0217-AJetPump.•LubeOilSystemisinserviceandoperating.•BufferSealSystemisinserviceandoperating.NOTE:ThisisforTrainingonly,andisnotintendedtobeusedasastepbystepprocedure.PO/MTBEGUIDELINE•EnsureallthefollowingitemsonHPFirstStagePropyleneFeedPump01P0216-Cisatproperkickbackflow(tobedeterminedbyDEC)withproperdischargepressureofapproximately15.71MPag.•EnsureallthefollowingitemsonH.P.FirstStagePropyleneFeedPump01P0216-Aand01P0216-CareinproperoperatingconditionsNOTE:THEPROPYLENEFLOWTOEPOXIDATIONRECYCLEJETPUMP01J0217-AINDICATEDBYFC-23213AKWHICHMUSTBEMAINTAINEDTHROUGHOUTTHESWITCHINGPROCESS.SwitchingFromHPFirstStagePropyleneFeedPump01P0216-ATo01P0216-CInto01J0217-AGuidelineNOTE:ThisisforTrainingonly,andisnotintendedtobeusedasastepbystepprocedure.PO/MTBENOTE:THEFOLLOWINGSTEPSAREVERYCRUCIAL.ALLOWAMPLETIMEFORFC-23213AKANDFC-23213CKTORESPONDTOTHEFLOWCHANGESTHROUGH01P0216-AAND01P0216-C.DEPENDINGONTHEINDIVIDUALPUMPDISCHARGEPRESSURES,AS01P0216-CDISCHARGEVALVEISOPENEDTO01J0217-A,ITMAYRESTRICTTHEFLOWTHROUGH01P0216-APUMPCAUSINGFV-23213AKTOSLOWLYOPENINORDERTOMAINTAINMINIMUMFLOWTHROUGHTHEPUMP.FORREFERENCETHEMINIMUMFLOWONPNPPPUMPSIS20,000LBS/HROR9,070KG/HR.MINIMUMFLOWREQUIREMENTSFOR01P0216-A/B/CTOBEDETERMINEDBYDEC.•SlowlyopendischargeblockvalveofHPFirstStagePropyleneFeedPump01P0216-Cinto01J0217-AJetPumpinletpiping.NOTE:THEINITIALOPENINGOFTHEBLOCKVALVEHASTHEMOSTIMPACTONTHEPUMPFLOWSOF01P0216-CAND01P0216-AANDAS01P0216-CDISCHARGEISOPENED,CLOSELYMONITORFLOWTRANSMITTERSFT-23213CKON01P0216-CANDFT-23212AKON01P0216-A.SwitchingFromHPFirstStagePropyleneFeedPump01P0216-ATo01P0216-CInto01J0217-AGuidelineNOTE:ThisisforTrainingonly,andisnotintendedtobeusedasastepbystepprocedure.PO/MTBE•MonitorHPFirstStagePropyleneFeedPump01P0216-CkickbackflowindicatedonFC-23213CK.•MonitorHPFirstStagePropyleneFeedPump01P0216-AkickbackflowindicatedonFC-23213AK.•MonitorpropyleneflowtoEpoxidationRecycleJetPump01J0217-AindicatedonFC-23213A.•MonitorpropylenefeedpressuretoEpoxidationRecycleJetPump01J0217-AindicatedonPI-23213A.•MonitorpropylenefeedtemperaturetoEpoxidationRecycleJetPump01J0217-AasindicatedonTI-23213AA.•MonitorHPFirstStagePropyleneFeedPump01P0216-Cforvibrations.•ContinuetoslowlyopenthedischargeblockvalveofHPFirstStagePropyleneFeedPump01P0216-CtoEpoxidationRecycleJetPump01J0217-Auntilfullyopen.SwitchingFromHPFirstStagePropyleneFeedPump01P0216-ATo01P0216-CInto01J0217-AGuidelineNOTE:ThisisforTrainingonly,andisnotintendedtobeusedasastepbystepprocedure.PO/MTBENOTE:ALLOWAMPLETIMEFORFC-23213AKANDFC-23213CKTORESPONDTOTHEFLOWCHANGESTHROUGH01P0216-AAND01P0216-C.DEPENDINGONTHEINDIVIDUALPUMPDISCHARGEPRESSURES,AS01P0216-ADISCHARGEVALVEISCLOSEDTO01J0217-A,ITWILLRESTRICTTHEFLOWTHROUGH01P0216-APUMPCAUSINGFV-23213AKTOSLOWLYOPENINORDERTOMAINTAINMINIMUMFLOWTHROUGHTHEPUMP.FORREFERENCETHEMINIMUMFLOWONPNPPPUMPSIS20,000LBS/HROR9,070KG/HR.MINIMUMFLOWREQUIREMENTSFOR01P0216-A/B/CTOBEDETERMINEDBYDEC.•SlowlyclosethedischargeblockvalveofHPFirstStagePropyleneFeedPump01P0216-Ato01J0217-AandasHPFirstStagePropyleneFeedPump01P0216-AdischargeisclosedthenmonitorflowtransmittersFT-23213CKon01P0216-CandFT-23212AKon01P0216-A.NOTE:THEFLOWTHROUGH01P0216-CWILLGRADUALLYINCREASEASTHEFLOWTHROUGH01P0216-ADECREASESWITHTHEMOSTIMPACTONTHEPUMPFLOWSOF01P0216-CWHILE01P0216-AWILLBEGINATTHEMID-WAYPOINTOFSWITCHINGTHEVALVES.SwitchingFromHPFirstStagePropyleneFeedPump01P0216-ATo01P0216-CInto01J0217-AGuidelineNOTE:ThisisforTrainingonly,andisnotintendedtobeusedasastepbystepprocedure.PO/MTBE•CloselymonitorpropyleneflowtoEpoxidationRecycleJetPump01J0217-AusingFC-23213Aandifflowbeginstodecreasebelowminimumflow,stopclosingthe01P0216-AdischargeblockvalveandallowFC-23213CKtocatchup.NOTE:IFTHEDESIREDPROPYLENEFLOWTOEPOXIDATIONRECYCLEJETPUMP01J0217-AISACHIEVEDTHENCONTINUE.•SlowlyclosethedischargeblockvalveofHPFirstStagePropyleneFeedPump01P0216-AintoEpoxidationRecycleJetPump01J0217-Ainletuntilfullyclosed.•Verifyall01P0216-Cvibrationsareinnormaloperation.•ShutdownHPFirstStagePropyleneFeedPump01P0216-Awhenallconditionsaresatisfactory.SwitchingFromHPFirstStagePropyleneFeedPump01P0216-ATo01P0216-CInto01J0217-AGuideline