Solubility of vitamin A in supercritical CO2: experimental study and thermodynamic modeling

Gowhar Ahmad Naikoo; Mohammad Saeedi Zadegan; Mona Zamani Pedram; Israr Ul Hassan; Waqar Ahmed; Golshan Yousefi Attar

doi:10.1038/s41598-021-92374-x

Solubility of vitamin A in supercritical CO₂: experimental study and thermodynamic modeling

Sci Rep. 2021 Aug 5;11(1):15917. doi: 10.1038/s41598-021-92374-x.

Authors

Gowhar Ahmad Naikoo^#¹, Mohammad Saeedi Zadegan^#², Mona Zamani Pedram³, Israr Ul Hassan⁴, Waqar Ahmed⁵, Golshan Yousefi Attar⁶

Affiliations

¹ Department of Mathematics and Sciences, College of Arts and Applied Sciences, Dhofar University, Salalah, 211, Sultanate of Oman.
² Faculty of Mechanical Engineering-Energy Division, K.N. Toosi University of Technology, No. 15-19, Pardis St., Mollasadra Ave., Vanak Sq., P.O. Box 19395-1999, 1999 143344, Tehran, Iran.
³ Faculty of Mechanical Engineering-Energy Division, K.N. Toosi University of Technology, No. 15-19, Pardis St., Mollasadra Ave., Vanak Sq., P.O. Box 19395-1999, 1999 143344, Tehran, Iran. m.zpedram@kntu.ac.ir.
⁴ College of Engineering, Dhofar University, Salalah, 211, Sultanate of Oman.
⁵ School of Mathematics and Physics, College of Science, University of Lincoln, Lincoln, LN6 7TS, UK.
⁶ Department of Chemical engineering, Islamic Azad University south Tehran Branch, Tehran, Iran.

^# Contributed equally.

Abstract

One of the best methods of extracting Vitamin A, as a helper of the immune body system and vision, was measured in supercritical carbon dioxide (SC-CO₂); Mole fractions were gained at practical conditions in which the temperature was in the range of 303-323 K and the pressure range was 90-235 bar, respectively. Moreover, four Equation of States [Soave-Redlich-Kwong, Peng-Robinson, Stryjek-Vera and Dashtizadeh-Pazuki-Taghikhani-Ghotbi (DPTG)] were compared with the experimental data. Also, the mixing rules of Van der Waals (vdW1 and vdW2) selected to correlate the solubility data of vitamin A. The outcomes indicate that each of EOSs coupled with vdW2, as a method of estimating the physicochemical and critical properties, were correlated with the solubility data of vitamin A in SC-CO₂ with more accuracy, in comparison with vdW1. Among the cubic EOSs, the DPTG model with vdW2 generated the most suitable correlation with the percentage average absolute relative deviation (Average Absolute Relative Deviation%) of 6.

Publication types

Research Support, Non-U.S. Gov't