ModelingpVTProperties and Phase Equilibria for Systems Containing Ionic Liquids Using a New Lattice-Fluid Equation of State

2009 ◽  
Vol 48 (24) ◽  
pp. 11189-11201 ◽  
Author(s):  
Xiaochun Xu ◽  
Changjun Peng ◽  
Honglai Liu ◽  
Ying Hu
Keyword(s):  
Ionic Liquids ◽  
Equation Of State ◽  
Phase Equilibria ◽  
Fluid Equation ◽  
Lattice Fluid

scholarly journals Towards the Equation of State for Neutral (C2H4), Polar (H2O), and Ionic ([bmim][BF4], [bmim][PF6], [pmmim][Tf2N]) Liquids

2014 ◽  
Vol 2014 ◽  
pp. 1-15 ◽  
Author(s):  
Vitaly B. Rogankov ◽  
Valeriy I. Levchenko
Keyword(s):  
Experimental Data ◽  
Ionic Liquids ◽  
Equation Of State ◽  
High Pressures ◽  
Strong Dependence ◽  
Fluid Equation ◽  
Lattice Fluid ◽  
Wide Range ◽  
Derived Properties ◽  
Vapor Liquid

Despite considerable effort of experimentalists no reliable vapor-liquid coexistence at very small pressures and liquid-solid coexistence at high pressures have been until now observed in the working range of temperature 290<T/K<350 for ionic liquids. The measurements of high-pressure properties in low-temperature stable liquid are relatively scarce while the strong influence of their consistency on the phase equilibrium prediction is obvious. In this work we discuss the applicability of fluctuational-thermodynamic methodology and respective equation of state to correlate the properties of any (neutral, polar, ionic) liquids since our ultimate goal is the simple reference predictive model to describe vapor-liquid, liquid-liquid, and liquid-solid equilibria of mixtures containing above components. It is shown that the inconsistencies among existing volumetric measurements and the strong dependence of the mechanical and, especially, caloric derived properties on the shape of the functions chosen to fit the experimental data can be resolved in the framework of fluctuational-thermodynamic equation of state. To illustrate its results the comparison with the known experimental data for [bmim][BF4] and [bmim][PF6] as well as with the lattice-fluid equation of state and the methodology of thermodynamic integration is represented. It corroborates the thermodynamic consistency of predictions and excellent correlation of derived properties over the wide range of pressures 0<P/MPa<200.

Group contribution lattice fluid equation of state (GCLF EOS) for ionic liquids

2012 ◽  
Vol 75 ◽  
pp. 1-13 ◽  
Author(s):  
Zhigang Lei ◽  
Li Xiao ◽  
Chengna Dai ◽  
Biaohua Chen
Keyword(s):  
Ionic Liquids ◽  
Equation Of State ◽  
Group Contribution ◽  
Fluid Equation ◽  
Lattice Fluid

Modeling the Effects of Cosolvent-Modified Supercritical Fluids on Polymers with a Lattice Fluid Equation of State

1998 ◽  
Vol 37 (8) ◽  
pp. 3305-3311 ◽  
Author(s):  
Barry L. West ◽  
David Bush ◽  
Noel H. Brantley ◽  
Michael F. Vincent ◽  
Sergei G. Kazarian ◽  
...  
Keyword(s):  
Equation Of State ◽  
Supercritical Fluids ◽  
Fluid Equation ◽  
Lattice Fluid

Applications of the group-contribution, lattice-fluid equation of state

2002 ◽  
Vol 194-197 ◽  
pp. 619-639 ◽  
Author(s):  
Ronald P. Danner ◽  
Mourad Hamedi ◽  
B.-C. Lee
Keyword(s):  
Equation Of State ◽  
Group Contribution ◽  
Fluid Equation ◽  
Lattice Fluid

Group contribution lattice fluid equation of state for CO2-ionic liquid systems: An experimental and modeling study

AIChE Journal ◽  
2013 ◽  
Vol 59 (11) ◽  
pp. 4399-4412 ◽  
Author(s):  
Chengna Dai ◽  
Zhigang Lei ◽  
Wei Wang ◽  
Li Xiao ◽  
Biaohua Chen
Keyword(s):  
Ionic Liquid ◽  
Equation Of State ◽  
Group Contribution ◽  
Fluid Equation ◽  
Lattice Fluid ◽  
Liquid Systems ◽  
Modeling Study

A crossover lattice fluid equation of state for pure fluids

2008 ◽  
Vol 40 (2) ◽  
pp. 174-179 ◽  
Author(s):  
Moon Sam Shin ◽  
Yongjin Lee ◽  
Hwayong Kim
Keyword(s):  
Equation Of State ◽  
Fluid Equation ◽  
Pure Fluids ◽  
Lattice Fluid
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