Comparative techno-economic assessment of a large-scale hydrogen transport via liquid transport media

A large-scale point to point hydrogen transport is one strategy for a prospective energy import scenario for certain countries. The case for a hydrogen transport from Australia to Japan has been addressed in several studies. However, most studies lack transparency and detailed insights into the made assumptions thus a fair evaluation of different transport pathways is challenging. To address this issue, we developed a model where a large-scale point to point hydrogen transport of liquid hydrogen is compared with the transport via liquid organic hydrogen carrier (LOHC), namely via methyl cyclohexane and hydrogenated dibenzyl toluene. We analyzed, where energy is required along the different pathways, where hydrogen losses do occur and how the costs are put together. Furthermore, the influence of hydrogen feed costs is also considered. For hydrogen production costs of 5 (sic)(2018)/kg(H2) the total delivery costs are in the range of 6.40- 8.10 (sic)(2018)/kg(H2). (C) 2021 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

Automated summary

The study examines hydrogen transport from Australia to Japan, finding that most studies lack transparency and detailed insights into assumptions, making fair evaluation of different transport pathways challenging. The authors developed a model comparing liquid hydrogen transport with transport via liquid organic hydrogen carrier, finding delivery costs in a certain range.