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Effects of a naturally derived surfactant on hydrate anti-agglomeration using micromechanical force measurement
Journal of Industrial and Engineering Chemistry ( IF 5.9 ) Pub Date : 2018-11-01 , DOI: 10.1016/j.jiec.2018.06.024
Mingzhong Li , Sanbao Dong , Bofeng Li , Chenwei Liu

Abstract The performance of a hydrate anti-agglomerant (AA) on cyclopentane (CyC5) hydrate anti-agglomeration at various concentrations (0–1 wt%, based on the oil phase) using MMF apparatus has been investigated. At low AA concentrations up to 0.01 wt%, the AA reduces the cohesion force (capillary force) by reducing the CyC5-water interfacial tension. At concentrations higher than 0.1 wt%, hydrate hydrophobicity alternation and AA’s thermodynamic inhibition effects are the main part of AA’s mechanism. Additionally, a “temporary agglomeration” phenomenon caused by surface melting of the hydrate particles is also observed, which may indicate the AA’s weak ability to produce stable water-CyC5 interface.

中文翻译:

使用微机械力测量天然衍生的表面活性剂对水合物抗团聚的影响

摘要 使用 MMF 装置研究了水合物抗凝剂 (AA) 在不同浓度(0-1 wt%,基于油相)对环戊烷 (CyC5) 水合物抗凝集的性能。在低至 0.01 wt% 的 AA 浓度下,AA 通过降低 CyC5-水的界面张力来降低内聚力(毛细管力)。在浓度高于 0.1 wt% 时,水合物疏水性改变和 AA 的热力学抑制作用是 AA 机制的主要部分。此外,还观察到由水合物颗粒表面熔化引起的“暂时团聚”现象,这可能表明 AA 产生稳定水-CyC5 界面的能力较弱。
更新日期:2018-11-01
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