The concept of hydrogen-methane blends storage in underground mine excavations - Gas permeability of concrete

D. Gajda, S. Liu, M. Lutynski

Research output: Contribution to journalConference articlepeer-review

Abstract

Power-to-gas technology gives the possibility to store the excess power from renewable energy sources by converting electrical energy into gas such as eg. hydrogen. There is however a problem with accessibility of sites where pure hydrogen can be stored. Hence, the idea of blending hydrogen with methane and use underground mine excavations to increase the storage capacity, apart from salt caverns. However, hydrogen has strong capability to diffuse through different materials, including steel and some minerals. The paper proposes a concept of hydrogen/methane blends storage in abandoned underground mine excavations. Research is focused on permeability of concrete as a barrier for stored gases. Gas permeability from two methods: pulse - decay and steady - state, were compared. Gas permeability of investigated concrete and geopolymers depends on the composition and pressure conditions, including axial stress. A significant improvement of tightness of the concrete can be achieved, using a synthetic compounds.

Original languageEnglish (US)
Article number03007
JournalE3S Web of Conferences
Volume266
DOIs
StatePublished - Jun 4 2021
Event2021 Topical Issues of Rational Use of Natural Resources, TI 2021 - Saint Petersburg, Russian Federation
Duration: May 31 2021Jun 6 2021

All Science Journal Classification (ASJC) codes

  • Environmental Science(all)
  • Energy(all)
  • Earth and Planetary Sciences(all)

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