Hydrate structural transition depending on the composition of methane plus cyclopropane mixed gas hydrate

被引：15

作者：

Makino, T ^{[1
]}

Tongu, M ^{[1
]}

Sugahara, T ^{[1
]}

Ohgaki, K ^{[1
]}

机构：

[1] Osaka Univ, Grad Sch Engn Sci, Div Chem Engn, Toyonaka, Osaka 5608531, Japan

来源：

FLUID PHASE EQUILIBRIA | 2005年 / 233卷 / 02期

关键词：

clathrate hydrate; solid-fluid equilibria data; structural transition; methane; cyclopropane;

D O I：

10.1016/j.fluid.2005.04.011

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The methane + cyclopropane mixed gas hydrate system has been investigated at 291.1 K by means of gas chromatography and Raman spectroscopy. Both of pure guest species generate the structure-I hydrate in the present conditions. Isothermal phase equilibria exhibit discontinuity around the equilibrium cyclopropane composition (water-free) in the gas phase of 0.20. The Raman shifts have changed bordering at the point. These results reveal that the methane + cyclopropane mixed gas hydrate generates the structure-II crystal in the methane rich region, while the structure-I crystal is generated in the cyclopropane rich region. (c) 2005 Published by Elsevier B.V.

引用

页码：129 / 133

页数：5

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