کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
216536 | 1426275 | 2011 | 9 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Phase behavior of (CO2 + methanol + lauric acid) system Phase behavior of (CO2 + methanol + lauric acid) system](/preview/png/216536.png)
In this study the phase equilibrium behaviors of the binary system (CO2 + lauric acid) and the ternary system (CO2 + methanol + lauric acid) were determined. The static synthetic method, using a variable-volume view cell, was employed to obtain the experimental data in the temperature range of (293 to 343) K and pressures up to 24 MPa. The mole fractions of carbon dioxide were varied according to the systems as follows: (0.7524 to 0.9955) for the binary system (CO2 + lauric acid); (0.4616 to 0.9895) for the ternary system (CO2 + methanol + lauric acid) with a methanol to lauric acid molar ratio of (2:1); and (0.3414 to 0.9182) for the system (CO2 + methanol + lauric acid) with a methanol to lauric acid molar ratio of (6:1). For these systems (vapor + liquid), (liquid + liquid), (vapor + liquid + liquid), and (solid + fluid) transitions were observed. The phase equilibrium data obtained for the systems were modeled using the Peng–Robinson equation of state with the classical van der Waals mixing rule with a satisfactory correlation between experimental and calculated values.
► We measured SVL, LLE and VLE for the binary system {lauric acid + methanol + CO2}.
► Bubble point and dew point were measured at high pressures.
► The experimental data were modeled using the Peng–Robinson equation of state with the classical van der Waals mixing rule.
Journal: The Journal of Chemical Thermodynamics - Volume 43, Issue 7, July 2011, Pages 1074–1082