Mitigating hydrogen losses throughout all stages of transfer operations is critical to enabling liquid hydrogen (LH2) as a high use and high-capacity energy storage reservoir, both in terms of cost…

Mitigating hydrogen losses throughout all stages of transfer operations is critical to enabling liquid hydrogen (LH2) as a high use and high-capacity energy storage reservoir, both in terms of cost and in limiting the environmental impact of hydrogen as an indirect greenhouse gas. Points throughout the LH2 transfer pathway where losses occur are well known and include cooldown of lines, flashing of liquid hydrogen into low-pressure dewars, cooling of dewar walls, transfer from a manufacture site to supply trailer, transfer from trailer to the on-site storage tank, on-site tank to tank transfers, transfer from storage tank to end application, and intentional venting events (e.g. to relieve pressure after transfers or at the end application). Demonstrated solutions to mitigate losses at scale are currently lacking with most boil-off hydrogen being vented to the atmosphere or flared. This project's objective is to design, engineer and construct a critically needed, materials-based solution for the capture of H2 from loss events. This design will include a subsequent H2 release to a RE-liquefication unit or direct use in power generation (e.g. fuel cell), whereby net energy loss is mitigated.