Experimental and theoretical study of CO2 solubility in N-methyl-2-pyrrolidone (NMP)

被引：49

作者：

Bohloul, M. R. ^{[1
,2
,3
]}

Vatani, A. ^{[1
,2
,3
]}

Peyghambarzadeh, S. M. ^{[4
]}

机构：

[1] Univ Tehran, Coll Engn, Sch Chem Engn, Tehran, Iran

[2] Univ Tehran, Coll Engn, Inst Petr Engn, Tehran, Iran

[3] Univ Tehran, Coll Engn, Inst LNG, Tehran, Iran

[4] Islamic Azad Univ, Mahshahr Branch, Dept Chem Engn, Mahshahr, Iran

来源：

FLUID PHASE EQUILIBRIA | 2014年 / 365卷

关键词：

CO2; solubility; N-methyl-2-pyrrolidone (NMP); Vapor-liquid equilibrium (VLE); Absorption; PR-EOS; PENG-ROBINSON EQUATION; AQUEOUS-SOLUTIONS; PHASE-EQUILIBRIA; CARBON-DIOXIDE; IONIC LIQUIDS; MIXTURES; WATER; NACL;

D O I：

10.1016/j.fluid.2013.12.019

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In this study, some new experimental data on the solubility of CO2 in N-methyl-2-pyrrolidone (NMP) is reported at different temperatures of 293 K, 313 K and 333 K and different pressures 0.5-1.1 MPa. The solubility of CO2 was evaluated by pressure decay method in a batch stirred absorption cell. The solubility data was also envisaged by using the thermodynamic modeling of the problem with 1-parameter and 2-parameter versions of Peng-Robinson equation of state (PR-EOS). Using the experimental data, the values of the binary interaction parameters (k(ij) and l(ij)) were optimized. The mean deviation between the measured solubility data and the predicted values by the thermodynamic model was calculated to be less than 3.5%. The results from both versions of PR-EOS are significantly similar. Therefore, it can be concluded that the application of 1-parameter model for NMP-CO2 system is simpler approach with sufficient accuracy to represent the vapor-liquid equilibria. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：106 / 111

页数：6

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