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1、JournalofLossPreventionintheProcessIndustriesxxx(2012)1e8ContentslistsavailableatSciVerseScienceDirectJournalofLossPreventionintheProcessIndustriesjournalhomepage:www.elsevier.com/locate/jlpDevelopmentofarisk-basedmaintenancestrategyusingFMEAforacontinuouscatalyticreformingplantYuqiaoWang,Guan

2、gxuCheng*,HaijunHu,WeiWuSchoolofEnergyandPowerEngineering,Xi’anJiaotongUniversity,Xi’an710049,ChinaarticleinfoabstractArticlehistory:Petrochemicalfacilitiesandplantsrequireessentialongoingmaintenancetoensurehighlevelsofreli-Received17November2011abilityandsafety.Arisk-basedmaintenance(RBM)stra

3、tegyisausefultooltodesignacost-effectiveReceivedinrevisedformmaintenanceschedule;itsobjectiveistoreduceoverallriskintheoperatingfacility.Inriskassess-24April2012mentofafailurescenario,consequencesoftenhavethreekeyfeatures:personnelsafetyeffect,envi-Accepted21May2012ronmentalthreatandeconomiclo

4、ss.Inthispaper,toquantifytheseverityofpersonnelinjuryandenvironmentalpollution,afailuremodesandeffectsanalysis(FMEA)methodisdevelopedusingKeywords:subjectiveinformationderivedfromdomainexperts.OnthebasisoffailureprobabilityandconsequenceRisk-basedmaintenanceanalysis,theriskiscalculatedandcompa

5、redagainsttheknownacceptableriskcriteria.TofacilitatetheFaulttreeanalysisFailuremodesandeffectsanalysiscomparison,ariskindexisintroduced,andweightfactorsaredeterminedbyananalytichierarchyContinuouscatalyticreformingplantprocess.Finally,theappropriatemaintenancetasksarescheduledundertheriskcons

6、traints.Acasestudyofacontinuouscatalyticreformingplantisusedtoillustratetheproposedapproach.TheresultsindicatethatFMEAishelpfultoidentifycriticalfacilities;theRBMstrategycanincreasethereliabilityofhigh-riskfacilities,andcorrectivemaintenanceisthepreferredapproachforlow-riskfacilitiestoreducema

7、in-tenanceexpenditure.Ó2012ElsevierLtd.Allrightsreserved.1.Introductionthatmaintenancecostscomprise20%e30%oftheoperatingbudgetinthechemicalindustry.WithregardtotheproblemofhowtousePetrochemicalindustriesandrefineriesinvolveawiderangeofav