The national hydrogen liquefier with a production capacity of 5 tons/day developed by the Institute of Physics and Chemistry has passed testing and acceptance_Zhongke Frontier (Xiamen) Science and Technology Research Institute

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The national hydrogen liquefier with a production capacity of 5 tons/day developed by the Institute of Physics and Chemistry has passed testing and acceptance

Time：2024-03-15 07:06:54

On March 8, the 5-ton/day large-scale hydrogen liquefaction system developed by the Institute of Physics and Chemistry Technology of the Chinese Academy of Sciences passed the test and acceptance in Beijing.

According to the requirements of the task book, the system has a stable operating time of 8.5 hours at full load and 73 hours at low load. Under full load operating conditions, the hydrogen liquefaction rate is 3070.2 L/h (about 5.17 tons/day), the secondary hydrogen content of liquid hydrogen products is 98.66%, and the energy efficiency ratio of the liquefaction system is 12.98 kWh/kg liquid hydrogen (including liquid nitrogen loss).

This equipment adopts helium refrigeration cycle, continuous conversion technology of normal and secondary hydrogen, and a low-temperature turbine expander with independent intellectual property rights, achieving national production of large hydrogen liquefiers and overall performance reaching international advanced level.