Experimental binary diffusion coefficients of benzene and derivatives in supercritical carbon dioxide and their comparison with the values from the classic correlations

被引：14
|
作者：
Bueno, JL [1 ]
Suárez, JJ [1 ]
Medina, I [1 ]
机构：
[1] Univ Oviedo, Dept Chem Engn, E-33071 Oviedo, Spain
来源：
CHEMICAL ENGINEERING SCIENCE | 2001年 / 56卷 / 14期
关键词：
supercritical fluids; molecular diffusivity;
D O I：
10.1016/S0009-2509(01)00109-9
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Experimental data for diffusion coefficients obtained by supercritical fluid chromatography (SFC) according to the Taylor-Aris dispersion method are compared with results from predictive equations for dense fluids. The goodness of fit and the bias of the correlation only suggest a slight empirical correction in these equations not specifically formulated for supercritical fluids (SCFs) and justify a persevering effort in experimentation oriented to the development of generalized models. (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：4309 / 4319
页数：11
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