Hydrogen is considered as a kind of green and clean energy,which has been receiving more and more attentions in recent years,but it needs large space for storage due to its low density.Underground rock formation or reservoirs can provide large-scale and long-term storage of hydrogen and may break through the key bottleneck of storage in the hydrogen energy in-dustry chain.In this study,the characteristics of three types of underground storage spaces were analyzed and compared for hydrogen storage,including depleted oil and gas reservoirs,underground salt caverns and aquifers,and the current develop-ment and research status of underground hydrogen storage engineering were described.The challenges faced in underground hydrogen storage were considered,such as caprock sealing,complex adsorption and flow characteristics of hydrogen in sub-surface porous media,hydrogen loss due to biochemical reactions,and engineering modelling.The developmet prospects of underground hydrogen storage in China were dicussed,highlighting that underground hydrogen storage is an indispensable en-gineering technology for achieving carbon peaking and carbon neutrality goals.
关键词
地下储氢/氢能/地下盐穴/枯竭油气藏/含水层
Key words
underground hydrogen storage/hydrogen energy/depleted oil and gas reservoirs/salt caverns/aquifers
维普
万方数据