Crystallization Mechanisms and Rates of Cyclopentane Hydrates Formation in Brine

Abstract : Clathrate hydrates most often grow at the interface between liquid water and another fluid phase (hydrocarbon) acting as a provider for the hydrate guest molecules, and some transfer through this shell is required for the hydrate growth to proceed, thus self-limiting the reaction rate. An optical microscope and a horizontal reaction cell are utilized to capture the shell growth phenomenology and to estimate the hydrate layer growth rates from sequential pictures. Cyclopentane (CP) is chosen as the hydrate-forming molecule to obtain hydrates at low pressure. Experimental hydrate layer growth rates are provided for the CP + brine system, using various combinations of salts and various degrees of subcooling.
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Son Ho-Van, Baptiste Bouillot, Daniel Garcia, Jérome Douzet, Ana Cameirão, et al.. Crystallization Mechanisms and Rates of Cyclopentane Hydrates Formation in Brine. Chemical Engineering and Technology, Wiley-VCH Verlag, 2019, 42 (7), pp.1481-1491. ⟨https://onlinelibrary.wiley.com/toc/15214125/2019/42/7⟩. ⟨10.1002/ceat.201800746⟩. ⟨hal-02103532⟩

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