SulfaTreaTSetting the standard in H2S removal

Features Customizedtreatmentsystems Widerangeofscavengersandreactantproducts

Singleorlead/lagvesselsconfiguration MobileH2Sremovalunits Highlyqualified,experiencedandtrainedsupportnetwork

Benefits Cost-effectiveoptionforlarge-volumeH2Sremoval

HSE-acceptablereactantproducts Establisheddisposalandrecyclingoptions

Minimizesenvironmentalrisks Capableofadaptingtovariableprocessconditions

AbilitytosetupandscrubH2Satanylocation

Economicalcapitalexpenserequired Simple,reliableandpredictableoperationrequiringonlyminimalhumanoversight

Landfill gas processing

APPLICATIONSTheglobalupstreamanddownstreamenergy,environmentalandwatertreatmentmarketswhereremovingconcentrationsofH2Saslowas1ppmisatoppriority.

PrOBLEmS Manyupstreamanddownstreamgasgatheringandproductionoperations,aswellasenvironmentalandwatertreatmentsites,generatehighconcentrationsofH2Sthatcannotbeeconomicallytreatedusingliquidchemicalsalone.

SOLUTIONS SulfaTreaTfromM-ISWACOemploysindustry-leadingH2Sscavengersandcustomizedtreatmentsystemstotreatlargevolumesofsourgas.TheSulfaTreaTorSulfaTreaTSelecTproductsselectivelyremoveH2Sandspeciallyformulatedproductscanbeselectedtobeequallyeffectiveineitherdryorwet,saturatedgas.Mobileunitsprovideflexibilitytoexpeditetheremovalprocessonsmallerorisolatedlocations.

ECONOmICSSulfaTreaTisacost-effectivesolutiontoremovingH2Sconcentrationslessexpensivelythanotherindustryscavengers.Single-vesselunitscanreducecostsevenfurther.

ENvIrONmENTAL TheSulfaTreaTproductsaresafeinboththeirinitialandreadyfordisposalforms.TheybeginasasafeandstablecompoundandwhenreactedwithH2Sformanothersafeandstablecompound.Disposalandmetalrecoveryroutesarewellestablished.

The SulfaTreaT team specializes in the removal of hydrogen sulfide (H2S) gas from both gases and liquids. There are two primary product types, SulfaTreaT, a blend of iron oxides and SulfaTreaT SelecT based on mixed metal oxides. Both use fixed bed technology. SulfaTreaT systems treat nearly 3 trillion ft3 of gas annually from more than 1,000 applications in more than 20 countries. We serve the global energy, environmental and water treatment markets where we have built a reputation that make us a widely recognized and trusted leader in the gas treatment industry.

Customerserviceisourtoppriority.Allofourproducts,systemsandspecializedequipmentarebackedbyourcomprehensivesupportnetworkthatincludesourtechnicalservicesandengineeringorganizations,aswellasexperiencedfieldpersonnelwhoaretrainedtodeliverfast,effectiveandsafeonsiteservices.

Nomatterwhatservicesourcustomersrequirefromthefirstloadingofmediatochangeoutsofspentmediaandreloadingofnewmediawewilldeliverourexpertisearoundtheworld.

Ourservicesandpeoplemakethedifference

Sour gas in

Sweet gas out

SULFATREATvessel

Water injection

Separator

Drain Drain

Afullyengineeredchemicalandmechanicalprocesssecondtonone

Process

TheSulfaTreaTprocessisafixedbedsystemfortreatinggasorvaporstreams.ThemostsuitableSulfaTreaTorSulfaTreaTSelecTproductisselecteddependentupontheprocessconditionsandoperationalparametersspecifiedbythecustomer.

Duringtheprocess,sourgasorvaporflowsthroughthebedinadownflowdesign.ThehydrogensulphidechemicallyreactswiththeSulfaTreaTmediatoformasafeandstableby-product.

TheadvantageoftheSulfaTreaTprocessisthatproductconsumptionisdependentonlyontheamountofH2Sthatpassesthroughthebed.ThiseconomicallymatchestheneedforH2Sremovalwith

variationsinsystemflowconditionsandoutletspecifications,regardlessofthetotalvolumeorothercommoncomponentsofthegas.

TheflexibilityoftheSulfaTreaTprocessallowsthesystemtoadapttochangesinoperatingpreferencesortighterregulations,oftenwithoutadditionalcapitalequipmentorsystemretrofitting.Predictablepressuredrops,longbedlife,easyandsafehandling,andasimple,reliableoperationareafewofthefeaturesoftheSulfaTreaTprocessthatmakeittheH2Streatmentsystemofchoice.

Basic SulfaTreaT configuration

Conventional SulfaTreaT requires 100% water saturated gas. SulfaTreaT SelecT products are available for both dry and water saturated gas processing

Loading manway (18in.orlargerfor60in.+I.D.)

relief valve

Approx. 2 ft disengaging space

SulfaTreaT product (SuppliedbySulfaTreaT)

Bed support (top-down)1.Foamfilter2.40-mesh316SSscreen3.4-mesh316SSscreen4.BedsupportsuitableforproductweightandP

Sweet gas outletwithpipingextendedtothecenterofthevessel,then90down

4-in. liquid drain (Flangeconnectpreferred)

Sour gas inlet withdeflectorplate

Cleanout manway (24in.orlargerfor60in.+I.D.)

Shortthroat,bottomofmanway2in.abovebedsupport

Equipmentcustomizedforspecificsiteconditions

Equipment

OurextensiveexperienceinH2Sremovalhasgivenustheexpertisetodesignsystemsthataddressyouruniqueconditions.

Weofferawidevarietyofvesseldesignscustomizedtospecificsiterequirements,takingintoconsiderationinletgasflow,operatingpressure,desiredpressuredrop,andthedays-to-outlet-H2Sspecification.Highlypredictablelowpressuredropsallowforawiderangeofreliableapplicationsandequipmentconfigurations.

Thepressurevesselcanbeobtainedfromavarietyofsourcesincludingthecustomersinventory,aslongasitisengineeredtotreatmentspecifications.

ProperlydesignedandconstructedSulfaTreaTsystemscanremainfullyfunctionalfor20yearsormore.

SitefacilitiesshouldincludetheappropriatepipingtoandfromtheSulfaTreaTvesselandvesselsupport.Insulationofthepipingandvesselmayberequired,dependinguponthedegreeofatmosphericcoolinganticipated.Optionalequipmentmayincludeawater-spraysystemtosaturatetheinletgas.

Sitespecificsystemandinternalvesseldesignspecifications,aswellasvesselfabricationandinstallationassistanceisavailablefromyourSulfaTreaTrepresentative.

Equipment configuration options

Single vessel

ThemostbasicdesignisasinglevesselwhereinitiallytheinletH2Sconcentrationisreducedattheoutlettonon-detectablelevelsatthebeginningofthebedlife.Overtime,theoutletH2Sconcentrationgraduallyincreasestoanoutletspecificationlevel,indicatingthattheSulfaTreaTmedianeedstobereplaced.TemporarybypassofthevesselorinterruptionofgasflowisnecessaryfortheshorttimeittakestoreplacetheSulfaTreaTreactantmedia,usuallynomorethanaday.

Themainadvantageofthistypeofsystemisthatthecapitalcostsareminimized.

Standard SulfaTreaT vessel components

Differential pressure indicator

Pressure indicator

Sample point

Temperature indicatorTI

SP

PI

DPI

Vessel A

Vessel B

Relief valve

SP

Gas in

Gas out

Bypass

SP

DPI

Tl

Tl

Pl

SP

Lead/Lag vessels

Thisvesselconfigurationofferstwobenefits.First,itpermitschange-outsofthespentmediawithoutinterruptingtheprocessingofthegasstream.Secondly,thisoptionimprovestheoverallremovalefficiencyofthesystemasmuchas20%.

Twovesselsarearrangedinseries,flowinggasthroughthefirstbedintothesecond.TheleadvesselactsastheworkingunittoremovealloftheH2SatthebeginningofatreatmentperiodwithitsoutletH2Sincreasingovertime.Thegascangotothesecondorlagvesselforfurtherpolishing.Theoperationoftheleadbedissimilartothesingle-vesselarrangement.

Thesecondvesselcanbeplacedinoperationatstartup,oritcanbeusedtopolishtheH2SremaininginthegasfromtheleadvesselwhenthelevelofoutletH2Sreachesthemaximumspecification.

Oncetheleadvesselinletandoutletconcentrationareequal,theSulfaTreaTmaterialisconsideredspentorexhausted.Thegasflowisthendirectedtothesecondvessel,whilethespentmaterialisremovedfromtheleadunit.ThesecondvesselbecomestheworkingunitwiththenewSulfaTreaTbedintheleadunitoperatingasthelagorpolishingunitallwithoutgas-flowinterruption.Thelead/lagarrangementallowsmoreefficientuseoftheSulfaTreaTmaterialwithno

interruptioninunitserviceandgreaterprocessreliability.

mobile units

WiththepatentedSulfaTreaTMobile Scrubber*unit,wecanprovideamobilesolutionforapplicationsthatonlyrequireperiodicattention.ThemobileunitisdesignedforuseonlocationswheretherequiredserviceandenvironmentprohibitsanyH2Sfrombeingemittedintotheatmosphere,including: Servicing400bbltanks Ventingmanholes Plantturnaround Gasflaringwelltesting

Quality assurance and technical support to ensure the utmost in performance

AllSulfaTreaTandSulfaTreaTSelecTproductsareformulatedtostringentqualityspecifications.AuniquesoftwaremodelisdevelopedforeachapplicationandacomputergeneratedEstimatedPerformanceSheet(EPS)isproducedforthecustomerthatclearlyspecifiesthesystemdesign,individualprocessconditionsandcriticaloperatingandperformancefeatures,suchasruntime,anticipatedpressuredropandtreatmentcost.Ourhighly-trainedtechnicalsales,qualityassurancerepresentativesandexperiencefieldpersonnelsupporttheapplicationthrougheverystepofthedesign,buildandsetupprocesstoensureasuccessfulH2Streatmentprogram.Evenwithoverathousandapplicationsonstreamatanyonetime,SulfaTreaTconsistentlymeetscustomerexpectations.

Schematic diagram of SulfaTreaT vessels in Lead/Lag configuration

SulfaTreaT technology helps renewable diesel plant remove H2S from CO2 off-gas stream

The situation

Recently,amajorrefiningcompanysuccessfullycommissionedtheworldslargestrenewabledieselplant.TheplantusesSulfaTreaTtechnology,includingtheSulfaTreaT410HPsystemandtheSelecTproductfortheremovaloftraceamountsofH2SfromaCO2off-gasstream.

Asurgeeventwasidentifiedthatwouldoccurduringplannedmaintenanceactivitiesonacriticalpieceofequipment.Duringthismaintenanceperiod,thesulphurloadincreasedsignificantlyandtheoriginaldesignbasisfortheH2Sremovalsystemwasnolongervalid.

The solution

SulfaTreaTexaminedvarioussystemmediaoptionsanditwasclearthatanintegratedconfigurationprovidedacosteffective,secure,flexibleandpracticalmeansofremovingH2Sfromtheoff-gaswhileprovidingmaximumsystemprotectionduringthesurgeconditions.

BulkremovalwasprovidedbytheSulfaTreaT410HPproductintheleadbed.UsingtheSelecT HPproductinthelagandpolishingreactorsensuredplantreliabilitywasnotcompromised.Thisconfigurationwasacceptedbytherefiningcompany.

The result

ThereactorswereloadedinJulywithSulfaTreaTsupportatsiteandtheplantstartedupinNovember.Withthesystemsuccessfullycommissioned,regularcontactismaintainedandtechnicalsupportprovidedtoensuresystemperformanceisoptimized...acustomer-focusedapproachtoourbusinessactivitiesthatisindustryleading.

Successstory

If you want to know more about how SulfaTreaT can remove your H2S concentrations regardless of the volume contact us on-line at www.sulfatreat.com, info@sulfatreat.com or call 636 532 2189.

Technology Centers

M-ISWACO(Headquarters)5950NorthCourseDriveHouston,TX77072

U.S.A.17998ChesterfieldAirportRoadSuite215Chesterfield,MO63005Toll-Free:18007267687Tel:+16365322211Fax:+16365322764

EuropeM-IDRILLINGFLUIDSUKLTDAberdeen,UKTel:+441224255500Fax:+441244890904

Asia PacificM.I.DRILLINGFLUIDS(MALAYSIA)SDN.BHD.KualaLumpur,MalaysiaTel:+60321617655Fax:+60321617485

P.O.Box42842Houston,Texas77242-2842www.sulfatreat.comwww.miswaco.slb.comEmail:info@sulfatreat.com

ThisinformationissuppliedsolelyforinformationalpurposesandM-ISWACOmakesnoguaranteesorwarranties,eitherexpressedorimplied,withrespecttotheaccuracyanduseofthisdata.AllproductwarrantiesandguaranteesshallbegovernedbytheStandardTermsofSale.Nothinginthisdocumentislegaladviceorisasubstituteforcompetentlegaladvice.

2010M-IL.L.C.Allrightsreserved.*MarkofM-IL.L.C.SulfaTreaTabusinessunitofM-IL.L.C.CoverimagesuppliedbyNesteOilSingaporePteLtd.TBR.1951.1104.R1(E)DigitalinU.S.A.