کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
202624 460612 2010 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Simple modification of the temperature dependence of the Sanchez–Lacombe equation of state
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Simple modification of the temperature dependence of the Sanchez–Lacombe equation of state
چکیده انگلیسی

In this work, the interaction energy term of the Sanchez–Lacombe equation of state (SL EOS) was modified to take into account the temperature dependence of hydrogen bonding and ionic interactions. A simple function was used in the form of the Langmuir equation that reduces to the original SL EOS at high temperature. Comparisons are shown between the ɛ*-modified SL EOS and the original SL EOS. The ɛ*-modified SL EOS could represent volumetric data for the group of non-polar fluids, polar fluids and ionic liquids to within an absolute average deviation (AAD) of 0.85%, 0.51%, and 0.054%, respectively whereas, the original Sanchez–Lacombe EOS gave AAD values of 0.99%, 1.2%, and 0.21%, respectively. The ɛ*-modified SL EOS provides remarkably better PVT representation and can be readily applied to mixtures.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fluid Phase Equilibria - Volume 297, Issue 2, 25 October 2010, Pages 205–209
نویسندگان
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