大规模地下储氢技术研究展望
陆佳敏, 徐俊辉, 王卫东, 王浩, 徐孜俊, 陈留平

Development of large-scale underground hydrogen storage technology
Jiamin LU, Junhui XU, Weidong WANG, Hao WANG, Zijun XU, Liuping CHEN
表1 氢气和甲烷的物理性质[8]
Table 1 Physical properties of hydrogen and methane [8]
性质氢气甲烷
分子质量2.01616.043
密度(25 ℃,101.325 kPa)0.082 kg/m30.657 kg/m3
黏度(25 ℃,101.325 kPa)0.89×10-5 Pa·s1.1×10-5 Pa·s
水中溶解度(25 ℃,101.325 kPa)7.9×10-4 mol/kg1.4×10-3 mol/kg
标准沸点/℃-253-165
临界压力1.3×106 Pa4639.67 kPa
临界温度/℃-239.95-82.3
热值/(kJ/g)120~14250.2~55.5 kJ/g
水中扩散速率(25 ℃)5.13×10-9 m2/s1.85×10-9 m2/s