Capture, storage, and re-use of liquid hydrogen boil-off for aviation and aerospace applications.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 42270671.
- Also identified by DOI 10.1038/s41467-026-74294-4.
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Abstract
Despite major interest in the use of liquid hydrogen as a fuel for aviation and aerospace sectors, loss of hydrogen through boil-off continues to be a hurdle as it causes financial loss, indirect greenhouse gas emissions, and safety concerns. Herein, we perform techno-economic analysis, calibrated with experimental measurements, to assess the use of sorbents to capture and condition hydrogen boil-off events in the range of 1.5 to 70 tonnes per day at launch sites and airports. We evaluate the direct delivery of captured boil-off to combustion engines and fuel cells, comparing against boil-off re-liquification and compression. Results indicate probable cost-effectiveness at delivered liquid hydrogen prices above 0.9 U.S. dollar ($) per kg H<sub>2</sub> at airports, and above 10 $ per kg H<sub>2</sub> at launch sites where 10% or more of hydrogen is lost to boil-off.