authors |
Zezere, B; Portugal, I; Gomes, JRB; Silva, CM |
nationality |
International |
journal |
JOURNAL OF SUPERCRITICAL FLUIDS |
author keywords |
Tracer diffusion coefficients; Modeling; Prediction; Correlation; Supercritical fluids; Liquids |
abstract |
This work compiles the largest database of tracer diffusion coefficients (D-12) containing 6180 experimental points from 331 non-polar and weakly polar liquid and supercritical systems. Then, the Tracer Liu - Silva - Macedo (TLSM) model and its 1-parameter correlations (TLSMd and TLSMen) are evaluated using this database, taking into account the importance of phenomenological and reliable equations for D-12 estimation. The TLSM model achieves good results with absolute average relative deviations (AARD) of 16.84 % while TLSMd and TLSMen show better performance with AARD of 4.53 % and 4.55 %, respectively. All properties and parameters needed for D-12 estimation are compiled in Appendix. For comparison, the models of Wilke-Chang and Reddy-Doraiswamy, and the correlations of Magalhaes et al. (LJ-1) and Dymond-Hildebrand-Batschinsky (DHB) are also assessed. (C) 2020 Elsevier B.V. All rights reserved. |
publisher |
ELSEVIER |
issn |
0896-8446 |
isbn |
1872-8162 |
year published |
2021 |
volume |
168 |
digital object identifier (doi) |
10.1016/j.supflu.2020.105073 |
web of science category |
21 |
subject category |
Chemistry, Physical; Engineering, Chemical |
unique article identifier |
WOS:000618742600011
|