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Decarbonisation - Hydrogen box

Cryogenic hydrogen recovery from ethylene plant

Costain provided a design for a cryogenic cold box to process the overhead stream from a demethaniser of an ethylene plant in China in order to produce hydrogen rich gas.

  • Service 1

TPL Italy (for Dongfang Chemical Works)

  • Service 1

Consultancy & advisory
Complex programme delivery



Hydrogen Purity


Hydrogen Recovery

13,800 Nm3/h

production capacity

Costain developed a design solution which makes use of two stage condensation and utilises Joules-Thomson cooling techniques. Careful process integration enabled a simple cold box design which met the client's requirements.

Following the generation of a conceptual design, Costain was awarded the contract for detailed design, engineering, procurement, construction and commissioning supervision of the cold box in Beijing, China.

Contact and social


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