RT Journal Article
T1 Enabling the injection of hydrogen in high-pressure gas grids: 												Investigation of the impact on materials and equipment
A1 Sánchez-Laínez, Javier
A1 Cerezo, Alberto
A1 Storch de Gracia, Ma Dolores
A1 Aragón, Jorge
A1 Fernandez, Ekain
A1 Madina, Virginia
A1 Gil, Vanesa
AB Green hydrogen is a renewable gas that can help to reach the goal of decarbonizing the energy sector. The use of the natural gas grid for seasonal storage and transport of hydrogen needs previous assessment of its tolerance, ensuring safe and viable operation. In this work, the tolerance of the most typical material pipelines and key elements of high-pressure gas grids to the transport of 20 mol% hydrogen blends at 80 barg has been investigated at pilot scale. For this, the experimental campaign carried out at a testing platform replicating a high-pressure gas grid lasted 3000 h. The tightness of different kind of valves led to hydrogen losses below 1 Nml·h−1. No embrittlement or other kind of damage was found on these valves or the different parts of the equipment (regulator, flowmeter) tested. C-ring, 4pb and CT-WOL specimens have been prepared from carbon steel pipes (API5L Gr X42 to X70), showing no damage after exposure to hydrogen. H2/CH4 deblending has also been successfully achieved using Pd-based membrane technology, obtaining a high-purity separated streams.
SN 0360-3199
YR 2024
FD 2024-01-02
LA eng
NO Sánchez-Laínez , J , Cerezo , A , Storch de Gracia , M D , Aragón , J , Fernandez , E , Madina , V & Gil , V 2024 , ' Enabling the injection of hydrogen in high-pressure gas grids : Investigation of the impact on materials and equipment ' , International Journal of Hydrogen Energy , vol. 52 , pp. 1007-1018 . https://doi.org/10.1016/j.ijhydene.2023.05.220
NO Publisher Copyright: © 2023 Hydrogen Energy Publications LLC
NO This project has received funding from the Fuel Cells and Hydrogen 2 Joint Undertaking (now Clean Hydrogen Partnership) under Grant Agreement No. 875091 ‘HIGGS’. This Joint Undertaking receives support from the European Union's Horizon 2020 Research and Innovation program, Hydrogen Europe and Hydrogen Europe Research . Financial support from the T13-20D (the Aragón Government and the ESF) is also gratefully acknowledged.
DS TECNALIA Publications
RD 1 sept 2024