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http://dx.doi.org/10.1016/j.jiec.2018.06.024

Effects of a naturally derived surfactant on hydrate anti-agglomeration using micromechanical force measurement  

Li, Mingzhong (College of Petroleum Engineering, China University of Petroleum (East China))
Dong, Sanbao (College of Petroleum Engineering, China University of Petroleum (East China))
Li, Bofeng (College of Petroleum Engineering, China University of Petroleum (East China))
Liu, Chenwei (College of Petroleum Engineering, China University of Petroleum (East China))
Publication Information
Journal of Industrial and Engineering Chemistry / v.67, no., 2018 , pp. 140-147 More about this Journal
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.
Keywords
Cocamidopropyl dimethylamine; Gas hydrates; Anti-agglomeration; Hydrate-water droplet-hydrate interaction;
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