乳液中甲烷水合物的生成反应实验

在可视化高压反应釜系统中，研究了甲烷水合物在油包水型乳液中的生成情况，反应的前30 min搅拌，油相为辛烷或十六烷，乳化剂为丙二醇脂肪酸酯（Emcol PO-50）、失水山梨醇油酸单酯（Span80）、单硬脂酸甘油酯（Aldo 28）。将乳液体系和纯水以及含乳化剂的纯水体系进行了对比，结果表明：甲烷水合物在油包水型乳液中可以有效提高反应速率，生成的水合物成粒状，含水率低。在选择油相时，需选取不生成水合物、在水中溶解度小而且对甲烷溶解度尽量大的有机溶剂，最后对油包水型乳液中甲烷水合物的生成机理进行了探讨。

Tests of the formation of methane hydrates in the emulsion

Reaction of methane hydrate formation in water in oil emulsion was tested in a visible and high pressure reactor with magnetic stirrer. In this test, agitation was first required thirty minutes before this reaction. Oil phase was octane or hexadecane and emulsifier was sorbitan monooleate (Span80), propylene glycol fatty acid ester (Emcol PO 50) or glycerol monostearate (Aldo 28). The results showed, for methane hydrate, formation rate and yield increased remarkably and water ratio decreased obviously in emulsion compared with pure water system and the pure water system including emulsifier. Organic solvent, which can not produce hydrate, has the lowest possible solubility in water and has the highest possible solubility of methane, was selected as oil phase. Finally, how methane hydrate forms in water in oil emulsion was also discussed here.