Hookham, M J F; le Gendre, E; Coulpier, C; Carre, M; Morris, A S O; Moore, N; Hristova, Y; Bacquart, T (2022) Impact of hydrogen liquefaction on hydrogen fuel quality for transport applications (ISO-14687:2019). Processes, 10 (9). 1697

Preview

Text eid10138.pdf - Published Version Available under License Creative Commons Attribution. Download (1MB) | Preview

Abstract

Decarbonisation of the energy sector is increasingly more important to combat climate change with the fluctuation in demand and production of energy from renewables being a limiting factor. Liquid hydrogen allows for long term storage of energy which is thought to be of higher purity than the starting hydrogen gas and suitable for use in fuel cell vehicles. The assumed purification of hydrogen after liquefaction was assessed against the specification of Hydrogen grade D in the ISO-14687:2019 by the analysis of samples taken at different locations throughout production. Sampling was done directly into cylinders and assessed using multiple analytical methods. The results indicate that the hydrogen gas produced from liquefaction is a higher purity than the starting gas with all impurities below the threshold values set in ISO-14687:2019. Water was shown to increase with time sampling from the liquid hydrogen tank suggesting the sampling system used was affected by the low temperatures (-253K). These data demonstrate for the first time the impact on purity of liquefied hydrogen assessed against ISO-14687:2019, showing that liquified hydrogen is a viable option for long term energy storage without compromising quality.

Item Type:	Article
Keywords:	ISO-14687:2019; liquified hydrogen; energy storage
Subjects:	Analytical Science > Gas Standards
Divisions:	Atmospheric Environmental Sciences
Identification number/DOI:	10.3390/pr10091697
Last Modified:	12 Mar 2025 11:32
URI:	https://eprintspublications.npl.co.uk/id/eprint/10138