کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6619439 | 460525 | 2016 | 35 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Density prediction of pyridinium, imidazolium, pyrrolidinium, ammonium, and phosphonium-based ionic liquids using an equation of state
ترجمه فارسی عنوان
پیش بینی تراکم مایعات یونی پودینیم، ایزیدلیوم، پیرولیدینیم، آمونیوم و فسفونیوم با استفاده از معادله حالت
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کلمات کلیدی
معادله ایالت، مایع یونی، تراکم، پیش بینی، تئوری اختلال،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
چکیده انگلیسی
A group contribution equation of state (EOS) has already been developed to calculate the density of imidazolium-based ionic liquids (ILs) with good accuracy. IL was divided into several groups, i.e. cation head, anion, and alkyls. In order to further prove the widely applicability of the model and the group segmentation method for IL, the densities of 1-alkyl-3-methylimidazolium salts containing metal of group III and a large number of pyridinium, pyrrolidinium, ammonium, and phosphonium-based pure ILs were correlated/predicted in this work. First, a total of 222 data points of density for 27 pure ILs, were regressed to obtain the new soft-core diameter and dispersive energy parameters. Then, 908 density data points of 42 pure ILs from 278.15 to 393.15Â K and up to 65.01Â MPa were predicted on the basis of the obtained parameters. The results indicated that the EOS could well capture the effects of temperature, pressure and alkyl types on density. Finally, the EOS was further evaluated to predict the density data for binary IL mixtures without introducing any new parameters, and testified the extensive applicability of the EOS with average relative deviation of 0.70%.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fluid Phase Equilibria - Volume 427, 15 November 2016, Pages 406-413
Journal: Fluid Phase Equilibria - Volume 427, 15 November 2016, Pages 406-413
نویسندگان
Hongxiang Xu, Haoran Li, Junfeng Wang,