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.

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TPL Italy (for Dongfang Chemical Works)

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Advisory and Concept Development
Specialist Design
Technology Integration
Complex Project Delivery
Project Management



Hydrogen Purity


Hydrogen Recovery

13,800 Nm3/h

production capacity

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

Oil & Gas

Gerard Shore, Sector director
0161 910 3444