Intensive testing of hydrogen stored in different types of reservoir sandstones has revealed no risk of hydrogen loss or reservoir integrity degradation due to non-bio geochemical reactions, according to a new paper written by HyStorPor researchers.
The paper, published in ACS Energy Letters, summarises more than 250 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.
“The results conclusively reveal there is no risk of hydrogen loss or reservoir integrity degradation due to abiotic geochemical reactions in sandstone reservoirs,” it finds.
The paper involves researchers from both HyStorPor and HyUsPRe, another underground hydrogen geological storage project at the University of Edinburgh’s School of GeoSciences. The HyStorPor authors were: Aliakbar Hassanpouryouzband, Katriona Edlmann, Eike Thaysen, Niklas Heinemann, Ian Butler and Mark Wilkinson. The two other authors were Kate Adie and Trystan Cowen, MSc students supervised by team members.
