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Direction Controlled Methane Hydrate Growth

机译：方向控制的甲烷水合物生长

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摘要

Gas hydrate growth pattern is of great importance in hydrate-based gas storage and transportation. In this work, direction controlled methane hydrate growth in the presence of sodium dodecyl sulfate (SDS) was achieved through hydrophobic modification to the hydrate growth surface and design to the existing manner of the reaction solution in the reactor. Upward methane hydrate growth was obtained when the hydrate formation took place on hydrophilic surface, while when the hydrate growth surface was hydrophobically modified, the upward hydrate growth was retarded. Downward hydrate growth was accomplished by fixing the reaction solution in the middle part of the reactor, because both gravity and capillary effect promoted the downward hydrate growth. However, when the lower part of the reactor was hydrophobically modified, the downward hydrate growth was restrained and upward hydrate growth was achieved.
机译：天然气水合物的生长方式在基于天然气水合物的储运中具有重要意义。在这项工作中，在十二烷基硫酸钠（SDS）存在下，通过对水合物生长表面进行疏水改性并设计为反应器中反应溶液的现有方式，可以实现甲烷水合物在定向控制下的生长。当水合物在亲水性表面上形成时，甲烷水合物向上生长，而当水合物生长表面被疏水改性时，水合物向上生长受到阻碍。通过将反应溶液固定在反应器的中间部分来完成水合物的向下生长，因为重力和毛细管作用都促进了水合物的向下生长。然而，当反应器的下部被疏水改性时，向下的水合物生长受到抑制，并且实现了向上的水合物生长。

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