英语翻译
SULFATREATSELECTproductswillworkinanywatercontentrangefromdehydratedtowatersaturatedgas.
OurSULFATREATrange,however,requiresthegastobewatersaturated.Insomecasesitmaybenecessaryforawaterinjectionsystemtobeinstalledtoensurethisconditionissatisfied.
JustupstreamoftheSULFATREAT*vessel(s),theinstallationrequiresasmallinletseparatortoremoveexcessliquidsfromthegas.CareshouldbetakentoinsulatethelinesandSULFATREATvessel(s)topreventatemperaturedropofnomorethan5°FafterthelastliquidseparatoracrosstheoutletoftheSULFATREATvessel.
TheactualdesignoftheSULFATREATvessel(s)canbecustomizedtospecificsiteneedsbasedoninletgasflow,operatingpressure,desiredpressuredrop,andthedays-to-outlet-H2Sspecification.Lowpredictablepressuredrops,aslowasafewinchesofwater,allowawiderangeofreliableapplicationsandequipmentconfigurations.ProperlyconstructedSULFATREATvesselsshouldlast20yearsormore.
EquipmentArrangements-SingleVessel
ThemostbasicdesignisasinglevesselwheretheinletH2Sconcentrationisreducedattheoutletto“non-detect”atthebeginningofthebedlife,graduallyincreasingtoanoutletspecification.TemporarybypassofthevesselorinterruptionofgasflowisnecessaryfortheshorttimeittakestoreplacetheSULFATREAT*material.Themainadvantageofthistypeofsystemisthatthecapitalcostsareminimized.
EquipmentArrangements-Lead/LagVessels
Therearetwobenefitsofthisvesselconfiguration.Thefirstisthatitallowsforchangeoutsofthespentmediawithoutinterruptingtheprocessingofthegasstream.Inaddition,therewillbeanimprovementintheoverallefficiencyofthesystemthatcanbeashighas20%.ThisarrangementisfeasiblewherethequantitiesofH2Sincreaseandforsystemsoperatingwithsufficientworkingpressure.
Twovesselsarearrangedinseries,flowinggasthroughthefirstbedintothesecond.Theleadvesselactsasthe“working”unittoremovealloftheH2Satthebeginningofatreatmentperiod,withitsoutletH2Sincreasingovertime.Thegascangotothesecond,or“lag”vesselforfurtherpolishing,oritcanbypassthesecondvessel