Vapor-liquid equilibrium calculation of H2S-CO2-alkanolamine solution using Gibbs free energy minimization

被引：0

作者：

Sarshar, M ^{[1
]}

Moshfeghian, M ^{[1
]}

机构：

[1] Shiraz Univ, Dept Chem Engn, Shiraz, Iran

来源：

IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY | 1998年 / 22卷 / 01期

关键词：

gas sweetening; sour gases; alkanolamines; Gibbs free energy minimization;

D O I：

暂无

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Equilibrium calculations of H2S-CO2-alkanolamine solutions (MEA, DEA, DGA, MDEA and DIPA) are performed using. the Gibbs free energy minimization. Two equations for chemical potential as a function of temperature mid loading for amine and its carbamate derivative are proposed and their coefficients are determined and reported. Partial pressures of H2S, CO2 over alkanolamine solutions are predicted and compared with experimental data and also with the modified Kent-Eisenberg model. Overall, the accuracy of the model is good and, in some cases, better results than those of the modified Kent-Eisenberg model sire obtained.

引用

页码：47 / 59

页数：13

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