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Deep NGL extraction technology for North Sea gas

Costain was engaged to develop a concept for a gas processing terminal capable of deep NGL extraction in Teesside, UK.

  • Service 1

Px Ltd.

  • Service 1

Consultancy & advisory


Over 1000 tonnes of NGL per day extracted

including stabilising and fractionation

NGL recovery achieved without the need for compression

to maximise profitability

Comprehensive techno-economic studies were used to identify the optimal liquids processing approach for the operator. The solution developed by Costain consultants resulted in:

  • A facility designed to allow switching between dewpointing and deep NGL recovery according to market conditions
  • Two gas processing trains, each able to process 400 MMSCFD of natural gas
  • NGL extraction trains using Costain’s own in-house technology developed in conjunction with the terminal operator, which incorporates dehydration, hydrocarbon dewpointing and de-ethanisation upstream of a two stage NGL fractionation process.
  • Production of treated gas as well as propane, butane and natural gasoline
  • Modular construction techniques engineered into the design early on to maximize project efficiency

Contact and social


Rob Phillips, Sector Director
0161 910 3444
[email protected]