Hassanpouryouzband Aliakbar, Adie Kate, Cowen Trystan, Thaysen Eike M, Heinemann Niklas, Butler Ian B, Wilkinson Mark, Edlmann Katriona
School of Geosciences, University of Edinburgh, Grant Institute, West Main Road, Edinburgh EH9 3FE, U.K.
ACS Energy Lett. 2022 Jul 8;7(7):2203-2210. doi: 10.1021/acsenergylett.2c01024. Epub 2022 Jun 3.
The geological storage of hydrogen is necessary to enable the successful transition to a hydrogen economy and achieve net-zero emissions targets. Comprehensive investigations must be undertaken for each storage site to ensure their long-term suitability and functionality. As such, the systematic infrastructure and potential risks of large-scale hydrogen storage must be established. Herein, we conducted over 250 batch reaction experiments with different types of reservoir sandstones under conditions representative of the subsurface, reflecting expected time scales for geological hydrogen storage, to investigate potential reactions involving hydrogen. Each hydrogen experiment was paired with a hydrogen-free control under otherwise identical conditions to ensure that any observed reactions were due to the presence of hydrogen. The results conclusively reveal that there is no risk of hydrogen loss or reservoir integrity degradation due to abiotic geochemical reactions in sandstone reservoirs.
氢的地质储存对于成功向氢经济过渡并实现净零排放目标至关重要。必须对每个储存地点进行全面调查，以确保其长期适用性和功能性。因此，必须建立大规模氢储存的系统基础设施和潜在风险。在此，我们在代表地下条件的情况下，用不同类型的储层砂岩进行了250多次批量反应实验，反映了地质氢储存的预期时间尺度，以研究涉及氢的潜在反应。每个氢实验都在其他条件相同的情况下与无氢对照配对，以确保任何观察到的反应都是由于氢的存在。结果确凿地表明，砂岩储层中的非生物地球化学反应不会导致氢损失或储层完整性退化的风险。
