​Air Liquide purchases Liquefin – a Dual Mixed Refrigerant technology

Air Liquide
Source: Wikipedia, Creative Commons

​Air Liquide Global E&C Solutions, the engineering and construction activity of the Air Liquide Group, has announced the purchase from the French public research company, IFPEN, a Dual Mixed Refrigerant technology ​ called ​ Liquefin™​ . This recent acquisition comprises patents and technical know-­how. Liquefin™ is a highly efficient process and provides the ​ most competitive LNG product per ton​. The technology is best optimized with the Brazed Aluminium Heat Exchanger, leading to further reductions and scalable output.

With its ​ complete family of technologies​ , the engineering and construction activity of the Group proposes to its customers the ​ most adapted solution for small to large scale applications​ . It thus consists of Air Liquide’s original technologies, Turbofin ™ and Smartfin ™, as well as the newly acquired Liquefin ™:

  • Turbofin™​ : Nitrogen cycle based on cryogenic turbo expanders best adapted to small scale size
  • Smartfin™​ : Single Mixed Refrigerant cycle best adapted to small and mid size
  • Liquefin™​ : Dual Mixed Refrigerant cycle best adapted to mid and large sizes

This family of solutions is based on the Group’s proprietary processes using Plate Fin Heat Exchanger technology. This proven and robust technology enables reaching ​ higher efficiency ​ and lower cost ​ compared to alternate solutions such as Coil Wound Heat Exchanger.

Domenico D’Elia​ , Vice President and Chairman, Air Liquide Global E&C Solutions, stated, “Through targeted investments and constant innovation, Air Liquide’s engineering and construction activity is further accessing and connecting to engineering and procurement (E&P) actors, focusing on markets which are rich in natural gas through mainly the sale of its proprietary equipment. We are delighted to offer to our customers such state­of­the­art technology and long­term responsible solutions in the LNG sector.”

Air Liquide’s ​ cryogenics technologies have been at the heart of the company for more than 110 years, having successfully delivered more than 20 LNG trains all over the world in the past 50 years.

The company’s extensive ​ LNG solutions offer ​ includes ​ technologies, services and ​ equipment for: standardized plants for the small size range; modularized plants and equipment for the mid to large size range; licence, process design package and proprietary equipment for large scale range; and equipment for LNG
regasification terminals.

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