Phase transition from structure-H to structure-I in the methylcyclohexane plus xenon hydrate system

被引：39

作者：

Shimada, N ^{[1
]}

Sugahara, K ^{[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 | 2003年 / 205卷 / 01期

关键词：

clathrate hydrate; solid-fluid equilibria; phase transition; data; mixture; xenon; structure-H;

D O I：

10.1016/S0378-3812(02)00186-3

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The methylcyclohexane + Xe hydrate system has been investigated in a temperature range from 274 to 291 K and pressure up to 1 MPa. The structure-H (s-H) type hydrate changes to the structure-I (s-I) type of Xe hydrate at 281.5 K. The overall enthalpy of s-H hydrate formation has been evaluated using the Clapeyron equation. The transition enthalpy change from s-H to s-I is estimated to be about 70 kJ/mol for unit amount of s-H hydrate. Neither cis-1,3-dimethylcyclohexane nor cis-1,4-dimethylcyclohexane generates the s-H hydrate in the presence of Xe. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：17 / 23

页数：7

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