emerging technology acid gas removal epa’s natural gas star program, pioneer natural resources...
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Emerging TechnologyEmerging TechnologyAcid Gas RemovalAcid Gas Removal
EPA’s Natural Gas STAR Program,EPA’s Natural Gas STAR Program,
Pioneer Natural Resources USA, Inc., andPioneer Natural Resources USA, Inc., and
The Gas Processors AssociationThe Gas Processors AssociationJune 17, 2003June 17, 2003
Page 2Reducing Emissions, Increasing Efficiency, Maximizing Profits
New Developments in Acid Gas New Developments in Acid Gas Removal TechnologiesRemoval Technologies
Typical Amine ProcessTypical Amine Process IGT & Uhde MorphysorbIGT & Uhde Morphysorb® ® ProcessProcess Engelhard Molecular GateEngelhard Molecular Gate®® Process Process ComparisonComparison
Page 3Reducing Emissions, Increasing Efficiency, Maximizing Profits
Typical Amine ProcessTypical Amine Process
Filter
Exchanger
Booster Pump
Flash Tank
Sour Gas
Sweet Gas
Contractor (Adsorber)
Fuel
Rich Amine
Lean AmineStripper (Steel) Condenser
Acid Gas
Reflux Pump
Reboiler
Heating Medium
Page 4Reducing Emissions, Increasing Efficiency, Maximizing Profits
MorphysorbMorphysorb®® Process Process
Absorber
Lean Solvent
Semi Lean
Crude Gas
Flash Recycle
Flash 1
Flash 3
Flash 2
Clean Gas
Sour Gas
c. w.
c. w.
Page 5Reducing Emissions, Increasing Efficiency, Maximizing Profits
MorphysorbMorphysorb®® Field Test Unit Field Test Unit
The process is ready for The process is ready for commercial-scale commercial-scale applicationapplication
One field test unit at One field test unit at Shell's Exploration and Shell's Exploration and Production facilities in Production facilities in Fandango, Texas, USAFandango, Texas, USA
Feed capacity: 1 MMscfdFeed capacity: 1 MMscfd
Source: Morphysorb® Process. IGT & Uhde Technology Profile
Page 6Reducing Emissions, Increasing Efficiency, Maximizing Profits
Molecular GateMolecular Gate®® CO CO22
10 psi pressure drop PRODUCT
C1, C2
5 psia
TAIL GAS
CO2, H2O, C3+,
Lost HCs
Enriched CH4
30 psia
FEED High
Pressure
C1, C2, C3, C4+ CO2, H2O
Pressure Swing
Absorption
Feed Compressor
Vacuum Compressor
Page 7Reducing Emissions, Increasing Efficiency, Maximizing Profits
Tidelands Molecular Gate UnitTidelands Molecular Gate Unit
Source: http://www.Engelhard.com/documents/CO2%20Removal-1.pdf
First commercial unit started on First commercial unit started on May 2002May 2002
Separate recycle compressor is Separate recycle compressor is requiredrequired
No glycol system is requiredNo glycol system is required Heavy HC removed with the COHeavy HC removed with the CO22
Tail gas used for fuel is a key Tail gas used for fuel is a key optimizationoptimization
18% CO18% CO2 2 removed to pipeline removed to pipeline specificationsspecifications
CC22 + losses makes the + losses makes the applicability site specificapplicability site specific
Page 8Reducing Emissions, Increasing Efficiency, Maximizing Profits
ComparisonComparison
Amine Amine ProcessProcess
Morphysorb® Morphysorb® Process Process
Molecular Molecular GateGate®® CO CO22
Absorbent orAbsorbent or
AdsorbentAdsorbent
Water & Water & AmineAmine
Morpholine Morpholine DerivativesDerivatives
Titanium Titanium SilicateSilicate
RegenerationRegeneration
Reduce Reduce Pressure & Pressure &
HeatHeat
Reduce Reduce Pressure to Pressure to
VacuumVacuum
Reduce Reduce Pressure to Pressure to
VacuumVacuum
Primary Primary Operating Operating CostsCosts
Amine & Amine & SteamSteam
ElectricityElectricity ElectricityElectricity