Abstract Interest of Clathrate hydrates for industrial applications is rising. While numerous studies can be found on carbon capture or desalination, this effort investigates thermodynamics of the combined process using cyclopentane (CP) as second guest molecule. This document provides numerous equilibrium data of mixed CP/CO2 hydrates in presence of salt (NaCl, KCl) under differents concentrations. Final dissociation points are collected, as well as intermediate dissociation points in presence of hydrates. While the first provide equilibrium data, the others are not at equilibrium. Indeed, Results show that, in presence of salts, several crystallization events occur in the system. Consequently, multiple hydrate structures could be formed in the bulk, such as pure CO2 hydrates and mixed CO2/CP hydrates. Finally, van der Waals and Platteeuw approach has been used and furnishes results within 0.4 K uncertainty compared to this work and within 0.5 K compared to literature. Besides, thermodynamic consistency of data has been evaluated.

中文翻译：

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在盐存在下混合环戊烷和二氧化碳水合物的相平衡测量和建模

摘要 笼形水合物对工业应用的兴趣正在上升。虽然有许多关于碳捕获或脱盐的研究，但这项工作研究了使用环戊烷 (CP) 作为第二客体分子的组合过程的热力学。该文件提供了在不同浓度下盐（NaCl、KCl）存在下混合 CP/CO2 水合物的大量平衡数据。收集最终解离点，以及存在水合物时的中间解离点。虽然第一个提供了均衡数据，但其他的并不处于均衡状态。事实上，结果表明，在盐的存在下，系统中会发生一些结晶事件。因此，可以在整体上形成多种水合物结构，例如纯 CO2 水合物和混合 CO2/CP 水合物。最后，van der Waals 和 Platteeuw 方法已被使用，与这项工作相比，结果在 0.4 K 的不确定性内，与文献相比在 0.5 K 内。此外，还评估了数据的热力学一致性。