Linde set new standard for liquid hydrogen refueling technology
Hydrogen

Linde set new standard for liquid hydrogen refueling technology

Today, liquid hydrogen can be supplied reliably throughout Europe

  • By ICN Bureau | February 12, 2024

Daimler Truck and Linde Engineering, two leading industrial companies, have reached an important infrastructure breakthrough on the path towards decarbonizing transportation with hydrogen. Over the past few years, engineers from both companies have jointly developed sLH2, a new process for handling subcooled liquid hydrogen. When compared to gaseous hydrogen, this innovative approach allows for a higher storage density, a greater range, faster refueling, lower costs and superior energy efficiency. Refueling takes around ten to fifteen minutes for a 40-ton heavy-duty truck, carrying 80 kg of liquid hydrogen for a range of 1,000 kilometers and more. At the same time, the new sLH2 technology lowers the required investment for a hydrogen refueling station by a factor of two to three, and operational costs are five to six times lower. Today, liquid hydrogen can be supplied reliably throughout Europe. 

Compared to regular liquid hydrogen (LH2) refueling technology, the new process uses a new innovative sLH2 pump to slightly increase the pressure of the liquid hydrogen. With this method, the hydrogen becomes subcooled liquid hydrogen (sLH2). Hydrogen in this state, facilitates a very robust fueling process that also keeps energy losses during refueling to a minimum. Furthermore, no data transmission between the refueling station and vehicle is necessary, which further reduces the complexity of the solution. At the same time, refueling capacity is increased to new levels. The pilot refueling station has a capacity of 400 kg of liquid hydrogen per hour. In comparison to regular liquid or gaseous hydrogen refueling concepts, sLH2 is considerably simpler while delivering increased performance. 

Aiming to establish a common refueling standard for hydrogen-powered trucks, the technology is made openly available to all interested parties via an ISO standard. In the presence of Rhineland-Palatinate's Secretary of State for Economic Affairs, Petra Dick-Walther, and international media, Andreas Gorbach, Member of the Board of Management of Daimler Truck, and Juergen Nowicki, CEO of Linde Engineering, today inaugurated the first public sLH2 pilot station in Wörth am Rhein, refueling a Mercedes-Benz GenH2 Truck prototype. 

Andreas Gorbach, Member of the Board of Management of Daimler Truck AG, responsible for Truck Technology: “Zero-emission transport needs three factors: the right battery-electric and hydrogen-powered vehicles, the required infrastructure network and cost parity for ZEVs compared to diesel trucks. In terms of vehicles, the transformation is in full swing. In terms of hydrogen infrastructure, we are reaching a major milestone today: With sLH2, hydrogen refueling becomes as convenient as today’s refueling with diesel. It takes about 10 to 15 minutes to fuel our Mercedes-Benz GenH2 Truck for a range of more than 1,000 kilometers. We now call on other OEMs and infrastructure companies to follow our approach and jointly make this technology an industry standard.” 

Juergen Nowicki, Executive Vice President Linde plc and CEO of Linde Engineering: “Subcooled liquid hydrogen considerably increases the efficiency of hydrogen refueling systems. The required investment is reduced by a factor of two to three, and operational costs are five to six times lower. This and further advantages make sLH2 a practical, CO2-neutral alternative to diesel in the heavy-duty vehicle sector. The technology we have developed with Daimler Truck will help pave the way for the development of a robust refueling network, which is essential to keep vehicles moving and supply chains intact.”


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