CIESC Journal

• 材料科学与工程 • 上一篇    下一篇

复合型水合物防聚剂

徐勇军;杨晓西;丁静;叶国兴   

  1. 华南理工大学强化传热与过程节能教育部重点实验室,广东 广州 510640

  • 出版日期:2004-08-25 发布日期:2004-08-25

COMPOUND HYDRATE ANTI-AGGLOMERANTS

XU Yongjun;YANG Xiaoxi;DING Jing;YE Guoxing

  

  • Online:2004-08-25 Published:2004-08-25

摘要: 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,还对该类防聚剂的作用机理进行了探讨.

Abstract: 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℃.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℃ ).Finally, the mechanism was discussed.