Stability boundaries of gas hydrates helped by methane-structure-H hydrates of methylcyclohexane and cis-1,2-dimethylcyclohexane

被引：233

作者：

Nakamura, T ^{[1
]}

Makino, T ^{[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：

CHEMICAL ENGINEERING SCIENCE | 2003年 / 58卷 / 02期

关键词：

gas hydrate; structure-H; gases; phase equilibria; stability; solutions;

D O I：

10.1016/S0009-2509(02)00518-3

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The four-phase coexistence curves for the structure-H hydrates of methylcyclohexane and cis-1,2-dimethylcyclohexane in the presence of methane are measured in the temperature range 274.09-288.29 K and pressure range 1.42-8.89 MPa. Very large pressure reductions from the pure methane hydrate are observed by forming structure-H hydrates. The present investigation on the trans-1,2-dimethylcyclohexane system reveals that the limit of the largest-cage occupancy for the structure-H hydrate is laid between the 1,2-dimethylcyclohexane stereo-isomers. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：269 / 273

页数：5

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