Air Liquide's CO2 Liquefaction Tech Chosen for Stockholm Exergi's Major Carbon Capture Project

Air Liquide's cutting-edge large-scale CO2 liquefaction technology, Cryocap™ LQ, has been chosen by Stockholm Exergi, the energy provider for Stockholm, for its Bio-Energy Carbon Capture & Storage (BECCS) project. This advanced technology enhances Air Liquide's portfolio of proprietary solutions, facilitating the development of extensive Carbon Capture & Storage (CCS) value chains. The CO2 liquefaction system enables the transportation of CO2 over long distances to carbon sinks for permanent storage, supporting the feasibility of CCS projects and the growth of a low-carbon industry.

As part of the agreement, Air Liquide will supply the CO2 liquefaction technology and equipment for the BECCS project at an existing heat and power biomass (bio-cogeneration) plant in Stockholm. The Cryocap™ LQ CO2 liquefaction unit provided by Air Liquide will be among the largest globally, with a daily capacity of 3,500 tonnes. Once the liquefaction process is complete, the CO2 will be transported for long-term storage. The BECCS facility aims to liquefy and store approximately eight million tonnes of biogenic CO2 during its first decade of operation. The project is backed by the European Innovation Fund, one of the largest global initiatives focused on advancing innovative low-carbon technologies.

Air Liquide’s groundbreaking Cryocap™ LQ technology, drawing on the company’s expertise in cryogenics, features a chemical-free, non-flammable process and a compact design. This advanced system also facilitates the recovery and reuse of heat generated during the process, which will be used to supply Stockholm’s district heating network. These attributes contribute to improved sustainability, safety, and superior energy efficiency compared to conventional liquefaction methods.

Philippe Merino, Group Vice President overseeing Engineering & Construction at Air Liquide, commented: "We are excited that Air Liquide’s technology has been chosen for Stockholm Exergi’s pioneering CCS project. Our Cryocap™ LQ CO2 liquefaction technology, a recent enhancement to our range of low-carbon solutions, is especially designed for large-scale CCS projects. Aligned with Air Liquide’s ADVANCE strategic plan, our goal is to actively support the development of a low-carbon society. Leveraging our innovative capabilities and expertise, we are committed to helping our customers meet their decarbonization objectives and build a sustainable future."

Air Liquide is a worldwide leader in gases, technologies, and services for both industry and healthcare. Operating in 72 countries with a workforce of 67,800 employees, the Group serves over 4 million customers and patients. Oxygen, nitrogen, and hydrogen—key small molecules essential for life, matter, and energy—represent the core of Air Liquide’s scientific focus and have been central to the company’s operations since its founding in 1902.