Prediction of Henry's constant in polymer solutions using PCOR equation of state coupled with an activity coefficient model

doi:10.1016/j.cjche.2014.12.001

›› 2015, Vol. 23 ›› Issue (3): 528-535.DOI: 10.1016/j.cjche.2014.12.001

Prediction of Henry's constant in polymer solutions using PCOR equation of state coupled with an activity coefficient model

Somayeh Tourani¹, Alireza Behvandi¹, Farhad Khorasheh²

1 Department of Chemical Engineering, Mahshahr Branch, Islamic Azad University, Mahshahr, Iran;
2 Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran

收稿日期:2013-05-17 修回日期:2013-08-15 出版日期:2015-03-28 发布日期:2015-04-03
通讯作者: Alireza Behvandi

Prediction of Henry's constant in polymer solutions using PCOR equation of state coupled with an activity coefficient model

Somayeh Tourani¹, Alireza Behvandi¹, Farhad Khorasheh²

1 Department of Chemical Engineering, Mahshahr Branch, Islamic Azad University, Mahshahr, Iran;
2 Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran

Received:2013-05-17 Revised:2013-08-15 Online:2015-03-28 Published:2015-04-03

摘要/Abstract

摘要： In this paper, the polymer chain of rotator (PCOR) equation of state (EOS) was used together with an EOS/G^E mixing rule (MHV1) and the Wilson's equation as an excess-Gibbs-energy model in the proposed approach to extend the capability and improve the accuracy of the PCOR EOS for predicting the Henry's constant of solutions containing polymers. The results of the proposed method compared with two equation of state (van derWaals and GC-Flory) and three activity coefficient models (UNIFAC, UNIFAC-FV and Entropic-FV) indicated that the PCOR EOS/Wilson's equation provided more accurate results. The interaction parameters of Wilson's equation were fitted with Henry's constant experimental data and the property parameters of PCOR, a and b, were fitted with experimental volume data (Tait equation). As a result, the present work provided a simple and useful model for prediction of Henry's constant for polymer solutions.

关键词: Henry's constant, Polymer solutions, Equation of state, Activity coefficient model

Abstract: In this paper, the polymer chain of rotator (PCOR) equation of state (EOS) was used together with an EOS/G^E mixing rule (MHV1) and the Wilson's equation as an excess-Gibbs-energy model in the proposed approach to extend the capability and improve the accuracy of the PCOR EOS for predicting the Henry's constant of solutions containing polymers. The results of the proposed method compared with two equation of state (van derWaals and GC-Flory) and three activity coefficient models (UNIFAC, UNIFAC-FV and Entropic-FV) indicated that the PCOR EOS/Wilson's equation provided more accurate results. The interaction parameters of Wilson's equation were fitted with Henry's constant experimental data and the property parameters of PCOR, a and b, were fitted with experimental volume data (Tait equation). As a result, the present work provided a simple and useful model for prediction of Henry's constant for polymer solutions.

Key words: Henry's constant, Polymer solutions, Equation of state, Activity coefficient model

Somayeh Tourani, Alireza Behvandi, Farhad Khorasheh. Prediction of Henry's constant in polymer solutions using PCOR equation of state coupled with an activity coefficient model[J]. , 2015, 23(3): 528-535.

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Prediction of Henry's constant in polymer solutions using PCOR equation of state coupled with an activity coefficient model

Prediction of Henry's constant in polymer solutions using PCOR equation of state coupled with an activity coefficient model

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