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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