کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
203424 | 460653 | 2009 | 12 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Equation of state for square-well chain molecules with variable range II. Extension to mixtures Equation of state for square-well chain molecules with variable range II. Extension to mixtures](/preview/png/203424.png)
An equation of state (EOS) developed in our previous work for square-well chain molecules with variable range is further extended to the mixtures of non-associating fluids. The volumetric properties of binary mixtures for small molecules as well as polymer blends can well be predicted without using adjustable parameter. With one temperature-independent binary interaction parameter, satisfactory correlations for experimental vapor–liquid equilibria (VLE) data of binary normal fluid mixtures at low and elevated pressures are obtained. In addition, VLE of n-alkane mixtures and nitrogen + n-alkane mixtures at high pressures are well predicted using this EOS. The phase behavior calculations on polymer mixture solutions are also investigated using one-fluid mixing rule. The equilibrium pressure and solubility of gas in polymer are evaluated with a single adjustable parameter and good results are obtained. The calculated results for gas + polymer systems are compared with those from other equations of state.
Journal: Fluid Phase Equilibria - Volume 287, Issue 1, 25 December 2009, Pages 50–61