Consistent phase equilibrium data for cyclopentane hydrates in presence of salts are vitally important to many industries, with particular interest to the field of hydrate‐based water separation via cyclopentane hydrate crystallization such as desalination. However, there are very little experimental equilibrium data, and no thermodynamic prediction tools. Hence, we set up a method to generate a great deal of much needed equilibrium data for cyclopentane hydrates in diverse saline solutions with a wide range of salt concentrations. Our method does furnish verified, reliable and accurate equilibrium data. Plus, three thermodynamic approaches are developed to predict equilibrium, and provide tools for simulations, by considering the kind of salt and concentrations. All three models are in very good accordance with experimental data. One method, using a new correlation between occupancy factor and water activity, might be the best way to obtain consistent, quick, and accurate dissociation temperatures of cyclopentane hydrate in brine. © 2018 American Institute of Chemical Engineers AIChE J, 64: 2207–2218, 2018

中文翻译：

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存在NaCl，KCl，CaCl2或NaCl-KCl的环戊烷水合物的实验测量和热力学模型

盐存在下环戊烷水合物的相平衡数据对于许多行业都至关重要，特别是通过环戊烷水合物结晶（例如脱盐）对基于水合物的水分离领域特别感兴趣。但是，几乎没有实验平衡数据，也没有热力学预测工具。因此，我们建立了一种方法，以生成各种盐浓度范围广泛的盐溶液中的环戊烷水合物的大量急需的平衡数据。我们的方法确实提供了经过验证的，可靠和准确的平衡数据。另外，通过考虑盐的种类和浓度，开发了三种热力学方法来预测平衡，并提供了模拟工具。这三个模型都与实验数据非常吻合。一种方法 在占有因子和水活度之间使用新的相关性，可能是获得一致，快速和准确的盐水中环戊烷水合物离解温度的最佳方法。©2018美国化学工程师学会AIChE J，64：2207–2218，2018