Measurement and modeling of the CO2 solubility in poly(ethylene glycol) of different molecular weights

被引：58

作者：

Aionicesei, Elena ^{[1
]}

Skerget, Mojca ^{[1
]}

Knez, Zeljko ^{[1
]}

机构：

[1] Univ Maribor, Fac Chem & Chem Engn, Lab Separat Proc, SI-2000 Maribor, Slovenia

来源：

JOURNAL OF CHEMICAL AND ENGINEERING DATA | 2008年 / 53卷 / 01期

关键词：

D O I：

10.1021/je700467p

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The solubility of supercritical carbon dioxide (ScCO2) in solid (298 K) and melted (323 K) poly(ethylene glycol) (PEG), in the pressure range (7 to 25) MPa, was measured using a magnetic suspension balance. The phase behavior of the CO2 + PEG system was modeled by using the Sanchez-Lacombe equation of state (EOS) and statistical associating fluid theory (SAFT). The results show a good solubility of CO2 in polymer and a good accuracy of the thermodynamic models in describing the phase equilibrium of the working system. The experimental data are also in good agreement with the solubility values previously described in the literature, obtained by employing different experimental techniques.

引用

页码：185 / 188

页数：4

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