Solid air hydrogen liquefaction, the missing link of the hydrogen economy

Hunt, J.D. ORCID:, Montanari, P.M., Hummes, D.N., Taghavi, M., Zakeri, B. ORCID:, Romero, O.J., Zhou, W., Vasconcelos de Freitas, M.A., et al. (2023). Solid air hydrogen liquefaction, the missing link of the hydrogen economy. International Journal of Hydrogen Energy 48 (75) 29198-29208. 10.1016/j.ijhydene.2023.03.405.

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The most challenging aspect of developing a green hydrogen economy is long-distance oceanic transportation. Hydrogen liquefaction is a transportation alternative. However, the cost and energy consumption for liquefaction is currently prohibitively high, creating a major barrier to hydrogen supply chains. This paper proposes using solid nitrogen or oxygen as a medium for recycling cold energy across the hydrogen liquefaction supply chain. When a liquid hydrogen (LH2) carrier reaches its destination, the regasification process of the hydrogen produces solid nitrogen or oxygen. The solid nitrogen or oxygen is then transported in the LH2 carrier back to the hydrogen liquefaction facility and used to reduce the energy consumption cooling gaseous hydrogen. As a result, the energy required to liquefy hydrogen can be reduced by 25.4% using N2 and 27.3% using O2. Solid air hydrogen liquefaction (SAHL) can be the missing link for implementing a global hydrogen economy.

Item Type: Article
Uncontrolled Keywords: Hydrogen; Transport; Energy carrier; Solid air; Cryogenic refrigeration; Hydrogen economy
Research Programs: Biodiversity and Natural Resources (BNR)
Energy, Climate, and Environment (ECE)
Energy, Climate, and Environment (ECE) > Integrated Assessment and Climate Change (IACC)
Depositing User: Michaela Rossini
Date Deposited: 29 Apr 2023 09:35
Last Modified: 05 Jan 2024 14:10

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