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Fuel Gas Conditioning Systems

Fuel Gas Conditioning Systems. Wide Variety. From Pipeline. To Turbine. Cleaning Stages Knockout Fine Filtration Last Chance Filter Pressure Reduction Flow Metering Heating. From the Pipeline to the Turbine. Leaves the Pipe Line 700 – 1000 psig 7 lb/ mmSCF 30-90 °F

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Fuel Gas Conditioning Systems

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  1. Fuel Gas Conditioning Systems

  2. Wide Variety

  3. From Pipeline

  4. To Turbine

  5. Cleaning Stages Knockout Fine Filtration Last Chance Filter Pressure Reduction Flow Metering Heating From the Pipeline to the Turbine

  6. Leaves the Pipe Line 700 – 1000 psig 7 lb/ mmSCF 30-90 °F Aerosols and Particulate Fuel Gas Specifics Enters the Turbine • 350-450 psig • 7 lb/ mmSCF • Up to 350 °F • Free from Aerosols and Particulate

  7. Fuel Gas Composition • Sweet: • Typical Natural Gas • Does not contain significant amounts of H2S or CO2 • Sour: • High H2S Content • Highly Corrosive • NACE

  8. Knockout (Scrubber) • Primary Filtration • Gross Liquid and/or Solid Removal • Mechanical Separation • Vanes – impingement • Multi Cyclones – centrifugal force

  9. Knockout Accessories • Drain Tank • Level Indicator • Level Switches • Automatic Drain Valve • Relief Valve • Pressure Gage • Differential Pressure

  10. Pressure Reduction • Sliding Stem Valves with Positioners • Reduces the pressure of the gas from 700-1000 psi to 400-450 psi • Protects Turbine • Improves Turbine Efficiency

  11. Fine Filtration • Filter Separators • 99% 0.5 – 3 micron • Coalescer • 99.98% of .3 μm • Solids and Liquids • Dual Filters • < 3 psi Drop Clean

  12. Filter Accessories • Ladder and Platform • Isolation Valves • Level Indicator • Level Switches • Automatic Drain Valve • Relief Valve • Pressure Gage • Differential Pressure

  13. Performance Heater • Boiler Feed Water • Controlled by Throttling Water Discharge • Shell and Tube Heat Exchanger • 100% of Gas Flow • Heats Gas to ~350 °

  14. Start-Up Heater • 50 F Above Dew Point • SCR or Step Control • Electric Heater • ~25% of Gas Flow • 50 F Temperature Rise

  15. Water Bath Heater • U-Bend • Controlled by Throttling Gas Flow/Bypass • Gas Fired Heater • 100% of Gas Flow • Heats Gas to ~180 °

  16. Detection Tank • Mechanical Separator – Multi-Cyclone • Capture Water from Heat Exchanger Leak • Instruments • Level Switches • Level Gages • Level Transmitters

  17. Flow Metering • Custody Transfer • Not Clark-Reliance • Individual Turbine Flow Measurement • Orifice Meter

  18. Last Chance Filter • Final Stage of Protection for Turbine • Coalescing Filter • 99.98% Removal of .3 μm particles • Level Instruments • Manual Drain • Differential Pressure

  19. Sales Opportunity - Filtration • Filter Vessels – Anderson Product • AMCS • AVGS • ACF • Elements • Aftermarket

  20. Sales Opportunity - Instrumentation • Jerguson • Level Gages • Mag Gages • Level Switches • Other • Pressure Gages • Differential Pressure • Temperature Gages

  21. SIEMENS – EVANDER ANDREWS • Scope • Vane Separator • Coalescer • Drain Tank • Level Controls • Piping • Valves • Junction Box

  22. CALPINE – OTAY MESA • Scope • Electric Startup Heater with SCR Control Panel • Performance Heat Exchanger Vane Separator Coalescing Filter Piping Valves Drain Tank

  23. JANTESA – SANTA ROSA • Scope • Unit Skids • Electric Heater • Heat Exchanger • Coalescing Filters • Automatic Valves • Piping • Junction Box

  24. UE – TRACY STATION • Scope • Vane Separator • Pressure Reducing Valves • Flow Measurement • Piping and Valves • Water Bath Heater • ETI

  25. UE – NRG – CEDAR BAYOU • Coalescing Filters • Multi-Cyclones • Instrumentation • Performance Heaters • Startup Heaters with SCR Control Panels

  26. Conclusion • Fuel Gas Filtration equipment controls • Temperature • Pressure • Contaminant • A variety of setups are used to manage a variety of situations

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