Correlating and Predicting the Solubilities of Solid n-Alkanes in Supercritical Ethane Using Carnahan-Starling-van der Waals Model

李红茹; 李淑芬; 沈炳谦

doi:10.1016/S1004-9541(13)60635-7

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Correlating and Predicting the Solubilities of Solid n-Alkanes in Supercritical Ethane Using Carnahan-Starling-van der Waals Model

化工热力学 | Updated：2026-01-06

- Correlating and Predicting the Solubilities of Solid n-Alkanes in Supercritical Ethane Using Carnahan-Starling-van der Waals Model
- Chinese Journal of Chemical Engineering Vol. 21, Issue 12, Pages: 1360-13691004-954160635-7(2013)
- Affiliations：
  
  2 Key Laboratory for Green Chemical Technologies of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University,Tianjin,China,300072
- Author bio：
- Funds：
- DOI：10.1016/S1004-9541(13)60635-7
  CLC：
- Published：2013
- Accepted：
Scan QR Code
-Alkanes in Supercritical Ethane Using Carnahan-Starling-van der Waals Model[J]. Chinese Journal of Chemical Engineering, 2013, 21(12): 1360-1369.
DOI：

-Alkanes in Supercritical Ethane Using Carnahan-Starling-van der Waals Model[J]. Chinese Journal of Chemical Engineering, 2013, 21(12): 1360-1369. DOI： 10.1016/S1004-9541(13)60635-7.

摘要

Abstract

The solubilities of some solid n-alkanes in supercritical ethane were correlated and predicted in this paper using the Carnahan-Starling-van der Waals model with a density-dependent parameter of a

. At a given temperature

the linear fit of the parameter of a

and the density of the supercritical solvent was used for solubility correlation

resulting in an average absolute average relative deviation (AARD) of 8.68%

which was between the values of the semiempirical models and the other compressed gas models used in this article. In the linear fit of the parameter of a

and the density of the solvent

the regressed slope m and intercept n of the linear fit can be correlated with the carbon atom number of solid n-alkanes and then the solubilities of solid n-alkanes in supercritical ethane can be predicted with the intercept n and slope m. The average AARD in solubility prediction was 26.99%.

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