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HyLINE - Safe Pipelines for Hydrogen Transport

HyLINE - Safe Pipelines for Hydrogen Transport

With Norway's great potential for production and export of renewable energy, world leading competence and technologies for turning fossil resources to clean energy through CCS, and the political commitment in reaching the Paris agreement, an exploitation of the existing pipeline network and subsea technology competence required for hydrogen transport will be essential. However, atomic hydrogen can be absorbed in metallic materials and cause material degradation in the form of hydrogen embrittlement. Therefore, HyLINE will address pipeline material challenges related to transporting clean hydrogen gas in the existing subsea pipeline infrastructure for natural gas transport and new pipeline infrastructure.

Cathodic protection against corrosion is a well-known source of hydrogen but exposing the full internal surface of a pipeline to high pressure hydrogen gas is a situation not addressed by current national standard for pipeline systems. Thus, hydrogen transport represents a new situation for the regulatory authorities, operators, owners and users of the existing pipelines and producers of new pipelines. All these stakeholders are contributing to HyLINE.

The primary objective of HyLINE is therefore to build fundamental knowledge and competence to ensure safe and efficient use of existing and new pipeline infrastructure.

The main topics to be addressed are:

  • How can H get into the material?
  • How fast H gets into the material.
  • How much H can the material take?
  • What H does to the material when it has entered.
  • How to predict effects of H throughout the lifetime of a pipe.
  • How to mitigate these effects.

Industry partners: Equinor, Gassco, TechnipFMC, AirLiquide, NEL, TenarisDalmine

Research partners: SINTEF and NTNU

International cooperating partners: Kyushu University (Japan), Max Planck Institute für Eisenforschung (Germany) and University of Poitiers (France).

Budget: 34MNOK


Published 07 November 2019
Senior Research Scientist
+47 982 30 434

Project duration

2019 - 2022