A new approach to gas hydrate modelling

被引：489

作者：

Chen, GJ ^{[1
]}

Guo, TM ^{[1
]}

机构：

[1] Univ Petr, High Pressure Fluid Phase Behav & Property Res La, Beijing 100083, Peoples R China

来源：

CHEMICAL ENGINEERING JOURNAL | 1998年 / 71卷 / 02期

基金：

中国国家自然科学基金;

关键词：

gas hydrate; formation mechanism; modelling; natural gas mixtures;

D O I：

10.1016/S1385-8947(98)00126-0

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A two-step hydrate formation mechanism is proposed for gas hydrate formation: (1) a quasi-chemical reaction process to form basic hydrate and (2) an adsorption process of smaller gas molecules in the Linked cavities of basic hydrate. Based on the new concepts introduced in a previous article and the two kinds of equilibrium: the quasi-chemical reaction equilibrium of step 1 and the physical adsorption equilibrium of step 2, a simpler hydrate model has been developed. Extensive test results indicate that the new model is adequate for predicting the hydrate formation conditions for pure gases and gas mixtures. (C) 1998 Elsevier Science S.A. All rights reserved.

引用

页码：145 / 151

页数：7

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