Computation of equilibrium hydrate formation temperature for CO2 and hydrocarbon gases containing CO2 in the presence of an alcohol, electrolytes and their mixtures

被引：32
|
作者：
Nasrifar, K [1 ]
Moshfeghian, M [1 ]
机构：
[1] Shiraz Univ, Dept Chem Engn, Sch Engn, Shiraz, Iran
来源：
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING | 2000年 / 26卷 / 1-4期
关键词：
gas hydrate; carbon dioxide; inhibition; electrolytes; alcohol;
D O I：
10.1016/S0920-4105(00)00028-0
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
This work presents the applicability of a unified model to predict the CO2-rich gas and pure CO2 hydrate formation conditions in aqueous solutions containing glycerol, methanol, ethylene glycol, electrolytes and their mixtures. A water activity model is introduced that combines the effect of the soluble gases, an alcohol and electrolytes. Then this model is used together with the model of Holder et al. [Holder, G.D., Corbin, G., Papadopoulos, K.D., 1980. Thermodynamic and molecular properties of gas hydrates from mixtures containing methane, argon and krypton. Ind. Eng. Chem. Fundam. 19 (3) 282] to predict CO2-rich gas and CO2 hydrate formation conditions. The predictions are in excellent agreement with experimental data. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：143 / 150
页数：8
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