摘要
随着氢气地位的进一步提高,大规模储氢逐渐得到重视.通过大量的调研文献对地下储氢库的特征、氢气与矿物的相互作用进行了阐述,并总结了粘土矿物和煤层对氢气的吸附特点.研究结果表明:(1)地下储氢库中,盐穴储氢是目前最好的方式;(2)温度、压力、硬脂酸浓度和有机酸碳数的变化会影响矿物的氢润湿性,从而影响盖层密封能力;(3)粘土矿物、煤层等可以吸附氢气,可为地下储氢新材料提供思路.基于以上研究和分析,指出了地下储氢目前存在的主要的难题,展望了地下储氢的未来发展前景,以期为地下储氢库的选址实施提供参考.并对地下多孔材料作为大规模储氢新材料的可行性做了简要概述,以期为寻求多样化、适宜化的储氢材料作出贡献.
Abstract
As the importance of hydrogen continues to grow,large-scale hydrogen storage is receiving increasing focus.In this paper it extensively examines the classification,advantages,and drawbacks of underground hydrogen storage facilities through comprehensive literature research,providing a theoretical foundation for the implementation of such storage systems.Furthermore,it elucidates the interactions between hydrogen and minerals,and highlights the hydrogen adsorption characteristics of clay minerals and coal seams,offering novel insights into addressing challenges related to large-scale hydrogen storage and low-cost adsorption-based storage.The study findings reveal that(1)hydrogen storage facilities are primarily categorized into salt cavern storage,depleted oil and gas reservoir storage,and aquifer storage,with salt cavern storage currently being the most favorable option;(2)variations in temperature,pressure,concentration of fatty acids,and organic acid carbon number affect the hydrogen wettability of minerals,thus impacting caprock sealing capacity;and(3)certain clay minerals,coal seams,and other materials can adsorb hydrogen,presenting potential avenues for new underground hydrogen storage materials.Based on the above research and analysis,the main problems existing in underground hydrogen storage are pointed out,and the future development prospect of underground hydrogen storage is prospected,in order to provide reference for the site selection and implementation of underground hydrogen storage.The feasibility of underground porous material as a new large-scale hydrogen storage material is briefly summarized,in order to contribute to the search for diversified and suitable hydrogen storage materials.
基金项目
国家重点研发计划(2019YFA0708504)
国家自然科学基金委员会重大项目(42090020)
NETL
NSTL
万方数据