کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
204425 460727 2011 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Measurements and thermodynamic modeling of the ethanol–water system with emphasis to the azeotropic region
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Measurements and thermodynamic modeling of the ethanol–water system with emphasis to the azeotropic region
چکیده انگلیسی

Recovery of bioethanol from the fermentation broth is classically achieved by distillation. The design and optimization of the distillation requires a reliable thermodynamic model that describes sufficiently the properties of the ethanol/water mixture, and, especially, the vapor–liquid equilibrium (VLE) near the azeotropic point. The purpose of this study is twofold: first, to provide new reliable low-pressure VLE data for the ethanol/water mixture with emphasis given near the azeotropic region, and second, to develop new temperature-dependent binary interaction parameters for three excess Gibbs energy models (UNIQUAC, Wilson and NRTL), by fitting simultaneously VLE data, azeotropic points and excess enthalpies for this mixture.


► New thermodynamically consistent low-pressure VLE data for the ethanol/water mixture with emphasis near the azeotropic region.
► New temperature-dependent binary interaction parameters for the UNIQUAC, Wilson and NRTL models.
► Simultaneous fitting of VLE data, azeotropic points and excess enthalpies.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fluid Phase Equilibria - Volume 308, Issues 1–2, 25 September 2011, Pages 135–141
نویسندگان
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