کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
203481 460658 2009 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Parameters estimation and VLE calculation in asymmetric binary mixtures containing carbon dioxide + n-alkanols
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Parameters estimation and VLE calculation in asymmetric binary mixtures containing carbon dioxide + n-alkanols
چکیده انگلیسی

In the present work, the estimation of the parameters for asymmetric binary mixtures of carbon dioxide + n-alkanols has been developed. The binary interaction parameter k12 of the second virial coefficient and non-random two liquid model parameters τ12 and τ21 were obtained using Peng–Robinson equation of state coupled with the Wong–Sandler mixing rules. In all cases, Levenberg–Marquardt minimization algorithm was used for the parameters optimization employing an objective function based on the calculation of the distribution coefficients for each component. Vapor–liquid equilibrium for binary asymmetric mixtures (CO2 + n-alkanol, from methanol to 1-decanol) was calculated using the obtained values of the mentioned parameters. The agreement between calculated and experimental values was satisfactory.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fluid Phase Equilibria - Volume 275, Issue 1, 15 January 2009, Pages 1–7
نویسندگان
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