Experimental studies on formation and dissociation of methane hydrates under ocean floor

在海洋沉积物下发现的所有天然气水合物模式首先是通过使用四氢呋喃水溶液和玻璃微珠的混合物进行模型实验重现的。水合物的模式在图表中被归类为水合物的生长速度和两个直径的玻璃微珠之间的混合比例的函数。提出了水合物花样形成机理的定性模型。此外，通过四氢呋喃水溶液在玻璃微珠中的扩散实验和四氢呋喃/水的浓度边界实验，阐明了客体分子的扩散效应。

All patterns of natural gas hydrates found under marine sediments were first reproduced by model experiments using the mixture of THF water solution and glass beads. The hydrate patterns were found to be classified in a diagram as a function of growth rate of hydrates and the mixing ratio between two diameters of glass beads. Qualitative model of formation mechanism of hydrate patterns were proposed. In addition, the diffusion effects of guest molecules were clarified by the experiments using dilute THF water solution in glass beads and the experiments in THF/water concentration boundary.