UOP Separex Membrane Technology

1 UOP SeparexTMMembrane TechnologyUOP SeparexTMMembrane Technology 2009 UOP LLC. All rights 5241E-01 Agenda Membrane Technology Overview Pretreatment Options Flow Scheme Options Commercial ExperienceUOP 5241E-02 Regions of Use for Acid Gas pressure of acid gas in feed, psiaPartial pressure of acid gas in product, 5241E-03 What Is a Membrane ?A semi-permeable film of various: Materials: Cellulose Acetate (CA), Polyimide (PI), Polyamide, Polysulfone, Silicone Types: Asymmetric or Composite Construction: Spiral-Wound or Hollow FiberUOP 5241E-04 Asymmetric Membranes Single polymer Thin selective layer Porous support layerNon-porous LayerNonNon--porous Layerporous LayerPorous LayerPorous LayerUOP 5241E-05 Composite Membrane StructureComposite Membranes Two or more polymers Thin layer of highly optimized polymer Mounted on an asymmetrical structure Highly tailored properties at low costUOP 5241E-06 Membrane elements - Spiral WoundUOP 5241E-07 Spiral Wound Membrane Element and TubeUOP 5241E-08 Hollow Fiber MembranesUOP 5241E-09 Not A Filtration Process Solution-Diffusion Based Separation Process Components dissolve into Membrane surface and diffuse through it More soluble components permeate quickerFastSlowHigh PressureLow PressureCO2, H2S,H2 OHydrocarbons.

2 N2 Separex MembranesMembranes are characterized by permeability (flux) and selectivityUOP 5241E-11 Driving ForceMembraneMembranePCO2 PCO2 High Pressure(Feed)Low Pressure(Permeate)A pressure differential across the membranePCO2 PCO2 UOP 5241E-12 Separex Membranes Regions of Use Flow Rates: Economical only for > 5 MMSCFD Feed Pressure: Up to ~ 2,000 psiA (138 barA) Permeate Pressure: Typically below ~50 psiA ( barA) p (Feed Permeate): 1,500 psi max (100 barA) Feed Temperature: 60 to 150 F (16 to 65 C)UOP 5241E-14 Agenda Membrane Technology Overview Pretreatment Options Flow Scheme Options Commercial ExperienceUOP 5241E-15 Pretreatment Design Considerations Feed Composition CO2 Content or Percentage of CO2 Removal Heavy Hydrocarbons Feed Contaminants Compressor Oils Well Additives Pipeline Corrosion InhibitorsAll Membranes Require Some Form of PretreatmentUOP 5241E-16 Standard PretreatmentFilter CoalescerNon-Regenerative AbsorbentBedFeedParticle FilterHeaterMembrane Removes feed contaminants such as lube oil and corrosion inhibitor It is not meant for removal of heavy HC tail as in very rich feed gasUOP 5241E-17 Particle FilterHeaterMembraneMemGuard RegenerableAdsorbentSystemEnhanced UOP MemGuard PretreatmentUOP 5241E-18 Filter CoalescerFeed Regenerable adsorbent unit replaces the

3 Non-regenerative absorbent bed Provides efficient dew point depression Can deal with varying levels of feed gas contaminantsMemGuard Flow SchemeAdsorbing Bed(s)ParticleFilterFilter CoalescerFeedLiquidsClean GasRegen GasBlowerRegeneratingBedRegen GasSeparatorRegen HeaterRegen GasCoolerUOP 5241E-19 MemGuard System Performance0100200300400500600700C6C7C8C 9+Pretreatment Feed GasPretreatment Discharge GasHydrocarbon Content, ppmUOP 5241E-20 Benefits of MemGuard System Selectively removes heavy HC tail and hence can provide efficient dew point depression MemGuard product gas is bone dry which allows use of carbon steel metallurgy If permeate gas is to be sequestrated, additional dehydration is typically not requiredUOP 5241E-21 Agenda Membrane Technology Overview Pretreatment Options Flow Scheme Options Commercial ExperienceUOP 5241E-22 Flow Scheme Options1 Stage1 Stage2 Stage2 StagePre-MembranePre-MembraneHybridHybri dUOP 5241E-23 Flow Schemes Allows greater CO2removal High hydrocarbon recover Requires recycle compressorFeedResiduePermeateFeedResidue PermeateFeedResidue(Low H2S/CO2)Permeate(High H2S/CO2)

4 No moving parts Simple, reliable operation Low hydrocarbon recovery Feed with high CO2 Intermediate hydrocarbon recovery Reduced compressionUOP 5241E-24 Hybrid Debottleneck existing plants or reduce Amine unit size Allows high CO2 removal, low ppm of CO2 & H2S as in LNG production Can minimizes capital and operating costsFeedTo BoilerSingle StageMembraneAmine SystemxxxxFiltrationSystemReflux XXXXT reatedGasTo Acid GasCoolerTo/FromAmineReboilerXXXXUOP 5241E-25 Effect of CO2 Removal0234102040608010060809070100% CO2 RemovedRelative Area Requirement% Hydrocarbon Recovery(1 Stage)One StageSystemMultistageSystemUOP 5241E-26 Effect of Number of Stages75%80%85%90%95%100%0%20%40%60%80%1 00%Percentage CO2 RemovalHydrocarbon RetentionOne StageTwo StageUOP 5241E-27 Effect of Feed Pressure on Pressure, psiaRelative Area or LossesHydrocarbonLossesMembraneAreaUOP Pressure, psiaRelative Area or LossesHydrocarbonLossesMembraneAreaEffec t of Permeate Pressure on 5241E-29 Effect of Feed Temperature on Temperature, FRelative Area or LossesHydrocarbonLossesMembraneArea150 UOP 5241E-30 Agenda Membrane Technology Overview Pretreatment Options Flow Scheme Options Commercial ExperienceUOP 5241E-32 Separex Membranes.

5 A Proven Technology World-Scale Processing Plants Delivered as Modular Packaged Equipment Advanced Pretreatment Demonstrated to Improve Element Life Off-shore ExperienceLarge Separex Membrane Projects2% 2%3%5%20%3%3%3%20%8%21%5%7% 550+450240 12032 107218234254680620163 NigeriaPakistanPakistanMexicoThailand *EgyptEgyptEgyptIndonesiaMalaysia *Thailand *Thailand CO2 OutletCO2 InletMMSCFDL ocation 5%25% * *4%38%46 Indonesia3%9%117 Egypt10%35%520 Thailand *In Construction* OffshoreEase of Operation Remote PlantsUOP 5241D-22 Pakistan II Overall LayoutUOP 5241E-36 Pakistan II Expansion SkidsUOP 5241E-37 Pakistan II MemGuard SystemUOP 5241E-38 Egypt I Plant LayoutUOP 5241E-39 Egypt I Plant 2nd-Stage Membrane SkidCarbon Guard Bed2nd Stage MembraneUOP 5241E-41 Recent Project Offshore< 540 maxMercury, g/Sm3 Hydrocarbon Recovery.

6 95%< 5 SaturatedWater, lb/MMSCFD < CO2, mol% 350630 Flow, MMSCFD ProductFeedUOP 5241E-42SE Asia Platform IUOP 5241E-43 Optimized Layout & Packing DensityUOP 5241E-44 Installed SE Asia MemGuard SystemUOP 5241E-45 Opinion of our CustomersGPA 2007 UOP 5241E-48 Separex Technology Summary Modular supply advantages High degree of shop fabrication Minimized installation time & cost Phased in expansion for future capacity or CO2increase Weight and space efficiency Easy to start-up, operate, turndown and shutdown High reliability and on-stream time Low maintenance requirements Lowest processing cost (~ $ ) Membranes are excellent dehydrators Advanced pretreatment and materials Membranes operate in gas phase (no flammable liquids, refrigerants or chemicals) Meets API-521 RP for system inventory blowdown during ESDUOP 5241E-49 Separex Technology Summary Synergies with other UOP technologies with one system wide performance warranty Unparallel capabilities UOP manufactures its own membranes Membrane and Pretreatment development program Supply of continually improved membranes Extensive commercial experience Long-term proven commitment Ongoing operational support Remote process monitoringUOP 5241E-50 UOP 5241E-52