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Impurities stabilise hydrogen caverns in salt
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DOI：10.1016/j.tust.2026.107993.png)
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Abstract
En 中文
• Design guidelines proposed for safe hydrogen storage in impure salt. • Density-based method enables accurate impurity quantification from core tests. • Impurities increase cohesion and tensile strength while reducing creep rates. • Higher impurity content limits plastic zones, displacement and shrinkage in caverns. • Laboratory creep tests systematically overestimate in situ deformation.
Keywords:
Underground hydrogen storage
Salt caverns
Impure rock salt
Geomechanics
Energy storage
Creep
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