Fuel Gas Heater Skid


Fuel Gas Heater Skids are sub assembly of a complete Fuel gas conditioning systems or Fuel gas filtration packages skids. The Heating systems are used to pre heat the fuel gas to desired temperature at specified pressure and flow rate, prior to feeding to the actual process or further circulations.

The Specially designed Fuel Gas heating skids helps to monitor, regulate the Gas flow with multiple safety features for the trouble free and risk free operation.

The System is designed considering the incoming gas properties along environmental conditions to achieve the desired outlet flow conditions.

The Skids are generally used for pre heating the gas above its dew Point, prior to feeding into the other equipments such as Gas operated Turbines, generators or other process applications. The system can also used for superheating the gas for other industrial applications

A Typical P & ID is as below


Each of fuel gas heater skid is custom made design to suite respective process specifications. A Typical Fuel Gas Heater Skid consist of

  • Electric Heater bundle
  • Pressure Vessel or housing for the Heater Bundle
  • Control Panel for the Heater operation control
  • Temperature Sensors such as RTD’s, Thermocouples, Temperature Transmitters
  • Pressure Safety Valve
  • Valves for flow control
  • Power & Instrument wiring
  • Skid base for easy installation at site.

Note: Additional Scope such as extended piping, scrubber installation, Instrumentation for flow, pressure & level
monitoring etc can be provided on specific requirement

Design & controls

The pressure parts &equipments are designed in accordance with the code requirements such as ASME Sec VIII Div 1or II and PED etc.

The Heater bundle is designed to install in hazardous area zone 1 & 2, Gas group IIC, temperature class (T1 to T6), with IP 66 protection in accordance with ATEX & IEC Ex Standards.

The Control Panel can be of Thyristor control or contactor bases depending upon the operational requirements.

The control panel is designed to install in hazardous area zone 1 & 2, Gas group IIC, temperature class T6, with IP 65 protection in accordance with ATEX & CCOE Standards.

All the Instruments selected are suitable for Hazardous area installation with suitable certifications.

Alternatively If the Ratings are high, the system can also divided into two parts with Heating System and instruments in one skid and control Panel suitable for safe area installation (mounted in the panel room with extended wirings).

Pressure Vessels can be code stamped (U or U2) or PED or DOSH Certified.

Raw Materials for Vessel and piping’s can be Carbon steel, Low temperature carbon steels, SS, Duplex steel or alloys.

Marathon can design and supply fuel gas heater system suitable for hazardous area installation with ambient temperature range of -40 deg C to 60 DegC.