Methane hydrate preparation is an effective method to store and transport methane. In promoters to facilitate methane hydrate formation, homogeneous surfactant solutions, sodium dodecyl sulfate (SDS) in particular, are more favorable than heterogeneous particles, thanks to their faster reaction rate, more storage capacity, and higher stability. Foaming, however, could not be avoided during hydrate dissociation with the presence of SDS. This paper investigated the ability of five fluorinated surfactants: potassium perfluorobutane sulfonate (PBS), potassium perfluorohexyl sulfonate (PHS), potassium perfluorooctane sulfonate (POS), ammonium perfluorooctane sulfonate (AOS), and tetraethylammonium perfluorooctyl sulfonate (TOS) to promote methane hydrate formation. It was found that both PBS and PHS achieve a storage capacity of 150 (V/V, the volume of methane that can be stored by one volume of water) within 30 min, more than that of SDS. Cationic ions and the carbon chain length were then discussed on their effects during the formation. It was concluded that PBS, PHS, and POS produced no foam during hydrate dissociation, making them promising promoters in large-scale application.

甲烷水合物的制备是储存和运输甲烷的有效方法。在促进甲烷水合物形成的促进剂中，均相表面活性剂溶液（特别是十二烷基硫酸钠）比异质颗粒更有利，因为它们具有更快的反应速度，更大的储存能力和更高的稳定性。但是，在存在SDS的情况下，水合物分解过程中无法避免起泡。本文研究了五种氟化表面活性剂：全氟丁烷磺酸钾（PBS），全氟己基磺酸钾（PHS），全氟辛烷磺酸钾（POS），全氟辛烷磺酸铵（AOS）和四乙基全氟辛基磺酸铵（TOS）促进甲烷水合物形成的能力。 。发现PBS和PHS均达到150（V / V，即30分钟内一体积的水可以存储的甲烷体积，比SDS大。然后讨论了阳离子和碳链长度在形成过程中的作用。结论是，PBS，PHS和POS在水合物分解过程中不产生泡沫，使其成为大规模应用中有希望的促进剂。