Thermodynamic stability of structure-H hydrates of methylcyclopentane and cyclooctane helped by methane

被引:38
作者
Makino, T [1 ]
Nakamura, T [1 ]
Sugahara, T [1 ]
Ohgaki, K [1 ]
机构
[1] Osaka Univ, Grad Sch Engn Sci, Div Chem Engn, Toyonaka, Osaka 5608531, Japan
关键词
clathrate hydrate; solid-fluid equilibria; structure-H; data; stability; methane;
D O I
10.1016/j.fluid.2004.01.003
中图分类号
O414.1 [热力学];
学科分类号
摘要
The four-phase equilibria were measured for the methylcyclopentane + methane + H2O hydrate system (274.28-287.40 K, 1.75-9.34 MPa) and the cyclooctane + methane + H2O hydrate system (274.08-288.57 K, 1.60-9.33 MPa). Each structure-H hydrate has the lower equilibrium pressure than the pure methane structure-I hydrate in the temperature range of the present work. The isothermal equilibrium pressures of both methylcyclopentane and cyclooctane hydrates are slightly higher than that of methylcyclohexane hydrate. (C) 2004 Elsevier B.V All rights reserved.
引用
收藏
页码:235 / 238
页数:4
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