复合型水合物防聚剂

COMPOUND HYDRATE ANTI-AGGLOMERANTS

利用可视化蓝宝石高压流体测试系统 ,以甲烷水合物为研究对象 ,在水和壬烷组成的水 碳氢化合物的混合体系中 ,研究了由两种非离子表面活性剂组成的复合型防聚剂 .实验结果表明 ,该类防聚剂用量为 0 4 %～0 8% (与水质量相比 ) ,所能承受的最大过冷度最高可以达到 17℃ ,和单组分的表面活性剂防聚剂相比 [用量一般为 0 5 %～ 3% (与水质量相比 ) ,最大过冷度最高的也只有 12℃ ],其防聚性能有了很大的提高 .另外 。

In a water-hydrocarbon fluid consisting of water and nonane, anti-agglomerants composed of two kinds of nonionic surfactant were tested in a visualized high-pressure sapphire apparatus. The results showed that they were effective for preventing methane hydrate from agglomerating and their concentrations in the system did not exceed 0.8% of water mass and the degree of supercooling they could tolerate reached 17°C. The performance of the compound anti-agglomerant was improved greatly compared with the one-component ones (concentration; 0.5%-3% of water mass; the degree of supercooling; below 12°C). Finally, the mechanism was discussed.