Peculiarities of natural gas hydrate formation from ice in reactors under high pressure

[摘要] Experimental results of natural gas hydrates formation from ice obtained under static conditions in the batch reactor applying the method of thermal cycling have been given. Hydrate forms subdivided according to their morphological features have been shown: powder and layered growth, retained ice shapes, and whisker crystals. The conducted experiments have defined effects of the thermal cycling regime on forms of obtained hydrates: decreased rates of heating/cooling results in an increase of a share of whisker crystals. The rate of decomposition of loose retained ice shapes in the form of hydrate has been defined to be 2.3 times faster than that of powder and dense layered hydrates.

[发布机构] Institute of Oil and Gas Problems, Siberian Branch, Russian Academy of Sciences, Yakutsk, Russia^1;M. Ammosov North-Eastern Federal University, Yakutsk, Russia^2

[效力级别] 力学 [学科分类] 力学，机械学

[关键词] High pressure;Layered growth;Morphological features;Static conditions