表面剂对HCFC141b的静态水合反应的作用

Influence of Surfactants on Formation Process of HCFC141b Hydrate under Static Condition

为了实现静态下水合物的快速生成,以促进水合技术的应用,通过同时添加NdFeB合金与十二烷基硫酸钠(SDS),在静态下成功实现了HCFC141b的快速水合反应。文章着重分析了SDS对此水合过程中诱导时间以及水合物的生长区域的影响,通过假定与分析,认为SDS会抑制水合反应的成核过程,但是会促进成核后的水合物生长过程,而NdFeB合金则能够强烈促进成核过程,两者配合实现了快速的水合反应;并提出了选择表面活性剂的一些定性的限制。

NdFeB alloy and sodium dodecyl sulfate（SDS） were simultaneously added to form HCFC141b gas hydrate quickly under static condition. The influences of the surfactants on the induction time and the advance region of the gas hydrate were analyzed. The analysis result shows that SDS inhibits the nucleation process of HCFC141b gas hydrate formation but improves the growing rate of the gas hydrate after the nucleation process. Moreover, NdFeB alloy accelerates the nucleation process greatly. It seems that the gas hydrate could form rapidly by the combination of these two surfactants.