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Clark Reliance Corporation
Strongsville, OH
Fuel Gas Treatment
Applications
From Well to End User
Gas Gathering
• Multiple Wells to
Production
• Remove Solid and
Liquid Contaminates
• Robust Mechanical
Separation
• Minimal Maintenance
• H2S and CO2 is
removed as well.
Gas Transmission
• Gas Transmission
Stations
• 50 to 100 Miles along
the Pipeline
• Compressors
Increase Pressure for
Further Distribution
• Inlet - Separators,
Filter Separators
• Outlet – Coalescing
Filter
Combined Cycle Electrical
Generation Process Overview
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Generate Electricity for Power Grid
Peak Power Generation
Base Load
Produce Steam
Drive Steam Turbine for Additional
Power Generation
Elements of Fuel Gas Treatment
• Pressure Control
• Temperature
Control
• Flow Measurement
• Removal of
Impurities
– Knockout
– Fine Filtration
– Last Chance Filter
Pressure Reduction
• Sliding Stem Valves
with Positioners
• Reduces the pressure
of the gas from 7001000 psi to 400-450
psi
• Protects Turbine
• Improves Turbine
Efficiency
Performance Heater
• Shell and Tube Heat
Exchanger
– 100% of Gas Flow
– Heats Gas to ~350 °
• Boiler Feed Water
• Controlled by Throttling
Water Discharge
Start-Up Heater
• Electric Heater
• 50 F Above Dew Point
– ~25% of Gas Flow
• SCR or Step Control
– 50 F Temperature Rise
Water Bath Heater
• Gas Fired Heater
– 100% of Gas Flow
– Heats Gas to ~180 °
• U-Bend
• Controlled by Throttling
Gas Flow/Bypass
Flow Measurement
• Individual Turbine
Flow Measurement
– Orifice Meter
• Custody Transfer
– Not Clark-Reliance
Removal of Impurities
Mechanical Separation
Filtration
Gravity
Separation
• Vane Separators
• KO Drums
• 100% Removal of >8µ
Liquids
Gravity
Separation
• Offset inlet with
baffle
• Handles slugs of
liquids
• Efficiency to 100%
down to 5 micron
liquid particles
Centrifugal
Separation
• Gas-Liquid
Separation
• HI-EF Element
• 99-100%
Removal of
Liquids to 8µ
Solids to 5µ
Centrifugal
Separation
• Multi-Cyclone
• Scrubber
• 99-100% Removal
of Liquids to 8µ
Solids to 5µ
• Limited Turndown
in Gas Flow
Filter Separator
•Multi-Stage
•Liquid and Solid
Filtration
•99% Removal
of Solids to 0.5µ
•100% Liquid
and Solid
Removal to 3µ
Filter Separator
Coalescing Filter
• Optimum Protection
• 99.98% Solid and
Liquid Removal to 0.3µ
• Aerosol Removal
• Multi-Stage Design
• Inside-Out Filtration
Filter Arrangement
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Horizontal or Vertical?
Filter or Coalescer?
Footprint
Access to Filter Elements
Combination Separators
• Filter Elements First or Last?
• Filter or Coalescer?
• Purpose for Mechanical Stage?
– Coalescer - Reduce Load on
Filter
– Filter Sep – Remove
Accumulated Liquids and
Solids
Filter Elements
• Pleated Filter Elements
• Melt Blown Filter
Elements
• Resin Bonded Filter
Elements
• Coreless Filter Elements
• Fiberglass Filter
Elements
• Membrane Filter
Elements
Filter
Separator
Coalescing
Filter
•Over 4 times the filtration area
•Longer element life
•Fewer element changes
•More rapid liquid drainage
•Lower saturated pressure drop
Filter Access Options
• Blind Flange and
Davit
• Simple
• Cheap
• Slower Access
• Good for Smaller
Vessels
Filter Access Options
• Sentry
• High Pressure
• Modco
• Screw Type
• Low-Medium Pressure
Liquid
Filtration
Equipment
Filtration Capabilities
ASME Code Simplex & Duplex
 ASME Code Series HiFlow Design
 Utilizes “V” Series microglass elements
 Flows to 3000 GPM
 Carbon and Stainless Steel
 Standard and Engineered Designs Available
“V” Series Elements
 Absolute Rated Microglass
 Rated per ISO 16889
 Heavy Duty Construction
 150 PSI Collapse Rating
 Coreless Elements
Available
Transfer Valves
Patented shoe seal provides “zero
leak” performance
Valve sizes from 1 ½” to 10”
Positive mechanical lockdown
Exceptionally low pressure drops
Zero frictional drag on change-over
Fabricated steel construction - Carbon &
Stainless Steel
Steam Separator
• Removes Mists
and Liquids from
Steam
• Low Pressure
Drop
• High Efficiency
• Wide Range of
Flow
Skid Mounted Systems
Modular Systems
Pressure Reduction Skid
Startup Heater
Performance Heaters
KO and Fine Filtration
Assembly – Piping and Wiring
• Piping
– ASTM B31.3
– ASTM B31.1
• Wiring
– NEC
– ATEX
– CSA
Instruments and Controls
• Level Control
– Automatic
Drain Valve
• Temperature
• Pressure
• Differential
Pressure
• Flow Measurement
Drying Systems
• Dryer Packages
• Molecular Sieve
– Natural gas
dryers
– Liquid dryers –
Propane, butane,
etc
– CO2 Removal
?Typical System?
• Doesn’t Exist
• Varies by Application
• Most Common
– Pressure Reduction
– Filtration
– Heating
– Flow Measurement
??Questions??
World Class
Manufacturing