TY - JOUR
T1 - Solubility of carbon dioxide in eicosane, docosane, tetracosane, and octacosane at temperatures from 323 to 473 K and pressures up to 40 MPa
AU - Sato, Yoshiyuki
AU - Tagashira, Yoshinori
AU - Maruyama, Daisuke
AU - Takishima, Shigeki
AU - Masuoka, Hirokatsu
N1 - Funding Information:
The authors wish to thank Mr. T. Kikuchi for his contribution to this work. Thanks are also due to Mr. Mitsuo Koizumi at Hikari Koatsu, Hiroshima, Japan, for his construction of the high pressure visual cell and hand pump used in this work. The present work was supported through the Grant-in-Aid for Scientific Research Fund on Priority Areas (Supercritical Fluid 244, Project No. 05222215) by the Ministry of Education, Science, Sports and Culture, Japan and through the `Research for the Future' program (Project No. JSPS-PFTF 96P00401) by the Japan Society for the Promotion of Science.
PY - 1998/6
Y1 - 1998/6
N2 - Solubilities of carbon dioxide in eicosane (C20H42), docosane (C22H46), tetracosane (C24H50), and octacosane (C28H58) were measured at temperatures from 323.2 to 473.2 K and pressures up to 40 MPa. The solubility increased with pressure and decreased with temperature. At a temperature of 323.2 K, bubble point pressures of carbon dioxide-eicosane and -odcosane systems showed a large enhancement around 0.78 CO2 mole fraction. At the higher temperatures, bubble point measurements were carried out up to the vicinity of the mixture critical points. Prediction of the solubility using the PSRK and the SRK equations of state with two excess Gibbs free energy mixing rules was examined. The mixing rule proposed by Zhong and Masuoka [C. Zhong, H. Masuoka, J. Chem. Eng. Jpn. 29 (1996) 315-322] provided prediction of the solubility with an average absolute deviation of 2.3% and can predict the solubility with satisfactory accuracy except near the mixture critical point.
AB - Solubilities of carbon dioxide in eicosane (C20H42), docosane (C22H46), tetracosane (C24H50), and octacosane (C28H58) were measured at temperatures from 323.2 to 473.2 K and pressures up to 40 MPa. The solubility increased with pressure and decreased with temperature. At a temperature of 323.2 K, bubble point pressures of carbon dioxide-eicosane and -odcosane systems showed a large enhancement around 0.78 CO2 mole fraction. At the higher temperatures, bubble point measurements were carried out up to the vicinity of the mixture critical points. Prediction of the solubility using the PSRK and the SRK equations of state with two excess Gibbs free energy mixing rules was examined. The mixing rule proposed by Zhong and Masuoka [C. Zhong, H. Masuoka, J. Chem. Eng. Jpn. 29 (1996) 315-322] provided prediction of the solubility with an average absolute deviation of 2.3% and can predict the solubility with satisfactory accuracy except near the mixture critical point.
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U2 - 10.1016/S0378-3812(98)00250-7
DO - 10.1016/S0378-3812(98)00250-7
M3 - Article
AN - SCOPUS:0032098388
VL - 147
SP - 181
EP - 193
JO - Fluid Phase Equilibria
JF - Fluid Phase Equilibria
SN - 0378-3812
IS - 1-2
ER -