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NickB79

(19,770 posts)
5. The Europeans are indeed studying utilizing existing natural gas pipelines
Sat Nov 11, 2023, 09:08 AM
Nov 2023
https://www.reuters.com/business/energy/europe-takes-steps-toward-developing-hydrogen-pipeline-network-2023-03-02/

“In the ongoing feasibility study, Gassco will look at several technical solutions for transporting low-carbon hydrogen, which includes blending of hydrogen in today's gas pipelines, complete conversion of a current gas pipeline, and a possible new pipeline,” says Rasmussen.

The decision is still to be made on whether to retrofit an existing natural gas pipeline – a pure hydrogen pipeline would need to address the peculiarities of the gas which can cause embrittlement of steel components and is leaky compared to methane – or to build a new pipeline.

“The studies we have carried out so far show that the pipeline network can be used to transport hydrogen. However, hydrogen will lead to changed operating conditions (pressure, capacity, etc.) in the pipeline network, and additional studies are needed,” he says.

“All options will require a qualification/requalification from a classification society in terms of technical and safety issues, and studies is this area are ongoing. Should an existing pipeline be recommended modifications will be required.”


See also: https://joint-research-centre.ec.europa.eu/jrc-news-and-updates/blending-hydrogen-eu-gas-system-2022-01-19_en

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