کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
203161 460638 2010 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Vapor–liquid equilibria of asymmetrical systems using UNIFAC-NRF group contribution activity coefficient model
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Vapor–liquid equilibria of asymmetrical systems using UNIFAC-NRF group contribution activity coefficient model
چکیده انگلیسی

The UNIFAC-NRF group contribution activity coefficient model is used for the calculation of vapor–liquid equilibria of binary systems of the heavy alkanes and light gases such as CH4, C2H6, CO2 and N2. The linear combination mixing rule, LCVM, of the Huron–Vidal and Michelsen, Chen et al. modification of PSRK and Universal Group Contribution Equation of State of Ahlers and Gmehling are combined with the UNIFAC-NRF group activity coefficient model to correlation of the vapor–liquid equilibrium of both light and heavy hydrocarbons. The results show that the LCVM mixing rule combing with UNIFAC-NRF group contribution model correlate the asymmetric systems better than the LCVM-UNIFAC and the other EOS/GE models. Also the group contribution model is used for the prediction of the phase envelope of the synthetic fluid with accurate results.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fluid Phase Equilibria - Volume 289, Issue 1, 25 February 2010, Pages 61–71
نویسندگان
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