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

Fuel Gas Specifics Leaves the Pipe Line 700 – 1000 psig 7 lb/ mmSCF °F Aerosols and Particulate Enters the Turbine psig 7 lb/ mmSCF Up to 350 °F Free from Aerosols and Particulate

Fuel Gas Composition Sweet: –Typical Natural Gas –Does not contain significant amounts of H 2 S or CO 2 Sour: –High H 2 S Content –Highly Corrosive –NACE Typical Fuel Gas Composition ComponentMol % Methane Ethane2.45 Propane0.506 N-Butane0.1 I-Butane0.11 N-Pentane0.022 I-Pentane0.036 Neo-Pentane0.0 Hexane Oxygen0.0 Carbon Dioxide0.853 Nitrogen0.356 Maximum Total Sulfur 0.0

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

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

Pressure Reduction Sliding Stem Valves with Positioners Reduces the pressure of the gas from psi to psi Protects Turbine Improves Turbine Efficiency

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

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

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 –~25% of Gas Flow –50 F Temperature Rise 50 F Above Dew Point SCR or Step Control

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

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

Flow Metering Custody Transfer –Not Clark-Reliance Individual Turbine Flow Measurement Orifice Meter

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

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

Sales Opportunity - Instrumentation Jerguson –Level Gages –Mag Gages –Level Switches Other –Pressure Gages –Differential Pressure –Temperature Gages

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

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

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

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

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

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