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Dissociation behavior of pellet shaped mixed gas hydrate samples that contain propane as a guest

机译：以丙烷为客体的颗粒状混合气体水合物样品的离解行为

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The dissociation kinetics of mixed gas hydrates that contain propane as a guest molecule have been investigated. The mixed gas hydrates used in this work were artificially prepared using the binary gas mixture of methane-propane and the ternary gas mixture of methane-ethane-propane. The crystal structures and the guest compositions of the mixed hydrates were clearly identified by using Raman spectroscopy and gas chromatography. The dissociation rates of the gas hydrates observed under several isothermal and isobaric conditions were discussed with an analytical model. The isobaric conditions were achieved by pressurizing with mixed gases using buffer cylinders, which had similar compositions to those of the initial gases used for synthesizing each hydrate sample. Interestingly, the calculated result agreed well with the experimentally observed results only when the composition of the vapor phase was assumed to be identical with that of the hydrate phase instead of the bulk (equilibrium) gas composition.
机译：已经研究了含有丙烷作为客体分子的混合气体水合物的离解动力学。使用甲烷-丙烷的二元气体混合物和甲烷-乙烷-丙烷的三元气体混合物人工制备了混合气体水合物。通过使用拉曼光谱和气相色谱法可以清楚地识别出混合水合物的晶体结构和客体组成。利用分析模型讨论了在几种等温和等压条件下观察到的天然气水合物的解离速率。等压条件是通过使用缓冲气瓶用混合气体加压来实现的，缓冲气瓶的组成与用于合成每个水合物样品的初始气体的组成相似。有趣的是，仅在假定气相的组成与水合物的组成相同而不是整体（平衡）气体组成相同的情况下，计算结果才与实验观察到的结果吻合得很好。

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