Fuel gas conditioning

     In many cases, the raw natural gas is the only fuel available for operating compressor station or gas turbine in remote location or off-shore platform. This gas often contains heavy hydrocarbons(C₅⁺), acid gases, and water vapor, which can cause significantly operating problems, such as the pre-detonation, incomplete fuel combustion, and carbon deposit buildup etc. 

    Membrane offers a simple and low-cost solution to remove heavy hydrocarbons, acid gases and water vapor from the raw gas to improve fuel quality and protect compressor or gas turbine.

Most available for:

• Associated gas: to reduce BTU by removing heavy HCs.

• Shale gas: to reduce BTU by removing ethane.

• Sweet gas: to increase BTU by removing CO₂

• Sour gas: to meet the requirement by removing H₂S

Performance:

• Ethane removal up to 50%

• C₃+ removal up to 80-90%

• CO₂ removal up to 50-80%

• H₂S removal up to 90-95%

Benefits:

• Increases reliability of gas engine and turbine, and reduce unscheduled downtime.

• Overcomes space and weight limitation

• Easy to install and operate with skid-mounted construction and no moving parts.

• Permits unattended operation at remote location

References:

Location: Indonesia

End user: Pertamina

Capacity: 240,000 Nm³/day

C₃+ removal: 80%

 

Location: South China Sea (off-shore)

End user: CNOOC

Capacity: 8,000 Nm³/day

C₃+ removal: 80%