Abstract
The low-pressure phase behavior of 1-alcohol + n-alkane systems
is investigated by considering trends in the experimental data and the
ability of SAFT models to predict the data. Data for four new isobaric
binary 1-alcohol + n-alkane systems at 40 kPa are presented in this study, including 1-heptanol + n-octane, 1-octanol + n-nonane, 1-nonanol + n-decane, and 1-decanol + n-undecane. These systems were not azeotropic, although positive deviations from ideality were observed. The CnOH + Cn+1 data were compared to the previously measured data for the CnOH + Cn+2, CnOH + Cn+3, and CnOH + Cn+4
systems, and trends and observations were elucidated. It was concluded
that the azeotropic composition could be predicted for other systems not
considered in these studies based on the available data. Finally, the
modeling of the available n-alkane and 1-alcohol data was
considered using the PC-SAFT and SAFT-VR-Mie models, and SAFT-VR-Mie
consistently outperformed PC-SAFT.
Original language | English |
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Journal | Journal of Chemical and Engineering Data |
Volume | 69 |
Pages (from-to) | 623-638 |
ISSN | 0021-9568 |
DOIs | |
Publication status | Published - 2024 |
Bibliographical note
Publisher Copyright:© 2023 The Authors. Published by American Chemical Society.