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醇胺法脱硫技术在永坪炼油厂的应用.docx

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醇胺法脱硫技术在永坪炼油厂的应用 Title:ApplicationofAmineDesulfurizationTechniqueinYongpingRefinery Introduction: Desulfurizationisacrucialprocessinpetroleumrefiningtoremovesulfurcompoundsfromhydrocarbonfuels.Itisessentialtoreducesulfurcontentinfuelstomeetenvironmentalregulations,reduceairpollution,andimprovetheoverallqualityofproducts.Oneofthemostcommonlyusedtechniquesfordesulfurizationistheaminedesulfurizationprocess.ThispaperaimstodiscusstheapplicationoftheaminedesulfurizationtechniqueintheYongpingRefineryanditssignificantimpactsontherefinery'soperations. DesulfurizationProcess: Theaminedesulfurizationprocess,alsoknownastheClausProcess,isawidelyimplementedmethodforremovingsulfurcompoundsfromrefinedpetroleumproducts.Itinvolvestheuseofvariousaminecompounds,suchasmonoethanolamine(MEA),diethanolamine(DEA),andmethyldiethanolamine(MDEA),toreactwithsulfurcompoundsandformstablecompoundsthatcanbeconvenientlyseparatedfromthehydrocarbonstream. ApplicationinYongpingRefinery: 1.SelectionofAmine: ThefirststepintheapplicationoftheaminedesulfurizationtechniqueintheYongpingRefineryistheselectionoftheappropriateaminecompound.Factorssuchassulfurremovalefficiency,operatingtemperatureandpressurerequirements,lifecyclecosts,andaminedegradationpropertiesareconsidered.Monoethanolamine(MEA)iscommonlychosenduetoitshighH2SabsorptioncapacityandtheavailabilityofMEAregenerationfacilities. 2.ProcessIntegration: Theaminedesulfurizationunitisintegratedintotherefinery'sexistingprocessingunitstoensureefficientoperation.Theprocessflowincludesasourgasfeedsection,absorptionsection,regenerationsection,andsulfurrecoveryunit.Thesourgasfeedisfirsttreatedtoremoveanyimpuritiesthatmightaffecttheamine'sperformancebeforebeingfedintotheabsorptionsection. 3.SulfurCompoundRemoval: Intheabsorptionsection,thesourgascomesintocontactwiththeaminesolvent,wherethesulfurcompounds,particularlyhydrogensulfide(H2S),areabsorbedthroughachemicalreaction.Thetreatedgasisthenseparatedfromtheaminesolventinaflashtank,whiletheH2S-richaminesolutioni