Chinese institutes and companies achieved multiple breakthroughs on liquid hydrogen technologies
The Technical Institute of Physics and Chemistry of the Chinese Academy of Sciences (TIPC-CAS) announced on March 8th that its 5-ton/day large-scale hydrogen liquefaction system passed the certification test in Beijing, which is the first such system with all essential parts innovated and made by Chinese institutes and companies, according to the institute.
Photo: the 5-ton/day large-scale hydrogen liquefaction system
This equipment uses helium refrigeration cycle, orthohydrogen and parahydrogen continuous conversion technology and low-temperature turbine expander to realize large-scale hydrogen liquefier.
According to the requirements of the mission, the system has a stable operation time of 8.5 hours with full load and 73 hours at lower load. Under full-load operating conditions, the hydrogen liquefaction rate is 3070.2 L/h (about 5.17 tons/day), the parahydrogen content of the liquid hydrogen product is 98.66%, and the energy efficiency of the liquefaction system is 12.98 kWh/kg liquid hydrogen (including liquid nitrogen loss). TIPC-CAS, founded in Beijing in June 1999 as a restruction of the former Institute of Photographic Chemistry, and Cryogenic Laboratory, is dedicated to researches and innovations in cryogenic engineering, photochemistry, biomimetic smart interfacial materials, bio-based materials, medical technical equipment and degradable plastic materials.
We noted Chinese companies have achieved several technology breakthroughs in liquid hydrogen field in 2023, stepping toward commercialization.
In April 2023, FTXT