Cryocap™ is a technological innovation for CO₂ capture that is unique in the world, using a cryogenic process (involving low temperatures to separate gases). Cryocap™ can be adapted to specific applications combining a variety of Air Liquide technologies:
Cryocap™ has resulted in the filing of several patents and illustrates the Air Liquide Group’s capacity for innovation. Its installation in Port-Jérôme, Normandy, at the largest steam methane reforming hydrogen production unit operated by Air Liquide in France represents the first industrial deployment of the Cryocap™ H₂ technology.
The hydrogen sector is mainly of interest to oil and gas refineries, which use hydrogen notably to produce sulfur-free fuels (desulfurization). For this reason, in 2002 the ExxonMobil group signed a long-term contract with Air Liquide for the supply of around 50 000 Nm³/h of hydrogen for its Esso refinery in Port-Jérôme.
Today, Cryocap™ H₂ is the only technique that enables the reduction of the CO₂ released during the production of hydrogen while also increasing this hydrogen production. The CO₂ can be then liquefied and purified to be finally used to meet the CO₂ needs of local industrial markets (agri-food, water treatment, etc.).
Hydrogen energy is a rapidly developing alternative to fossil fuels. It is used to power hydrogen fuel cells for stationary applications (relay antenna) as well as for clean mobility: forklift trucks, urban transportation vehicles, and now passenger cars. To date, 75 hydrogen charging stations have been designed and delivered by Air Liquide around the world.
With Blue Hydrogen, Air Liquide is moving toward a gradual decarbonization of its hydrogen production dedicated to energy applications.
In practical terms, Air Liquide has made a commitment to produce at least 50% of the hydrogen necessary for these applications through carbon-free processes by 2020 by combining:
Cryocap™ in Normandy is part of this initiative.