کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
203657 460670 2009 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A comparison of mixing rules for the combination of COSMO-RS and the Peng–Robinson equation of state
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
A comparison of mixing rules for the combination of COSMO-RS and the Peng–Robinson equation of state
چکیده انگلیسی

In this work, the COSMO-RS model is combined with a volume-translated Peng–Robinson equation of state (EOS) via a GEGE-based mixing rule. The performance of several mixing rules previously published for this purpose is compared and semi-empirical modifications to one of them are introduced to improve its performance in our application. The new mixing rule contains three internal parameters that are adjusted to achieve consistency between the mixing rule and COSMO-RS. No experimental binary data is needed for our EOS. The new COSMO-RS-based, predictive EOS introduces a density dependence into COSMO-RS and extends its applicability to higher pressures and to mixtures containing supercritical components.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fluid Phase Equilibria - Volume 275, Issue 2, 25 January 2009, Pages 105–115
نویسندگان
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