Experimental Density of Ionic Liquids and Thermodynamic Modeling with Group Contribution Equation of State Based on the Lattice Fluid Theory

2015 ◽  
Vol 61 (1) ◽  
pp. 348-353 ◽  
Author(s):  
Dheiver Santos ◽  
Maria Santos ◽  
Elton Franceschi ◽  
Cláudio Dariva ◽  
Andersson Barison ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Equation Of State ◽  
Thermodynamic Modeling ◽  
Group Contribution ◽  
Lattice Fluid ◽  
Fluid Theory ◽  
Experimental Density

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

Group contribution equation of state based on the lattice fluid theory: Alkane–alkanol systems

1998 ◽  
Vol 142 (1-2) ◽  
pp. 33-54 ◽  
Author(s):  
Silvana Mattedi ◽  
Frederico W. Tavares ◽  
Marcelo Castier
Keyword(s):  
Equation Of State ◽  
Group Contribution ◽  
Lattice Fluid ◽  
Fluid Theory

scholarly journals Modelling of Diesel fuel properties through its surrogates using Perturbed-Chain, Statistical Associating Fluid Theory

2018 ◽  
Vol 21 (7) ◽  
pp. 1118-1133 ◽  
Author(s):  
Alvaro Vidal ◽  
Carlos Rodriguez ◽  
Phoevos Koukouvinis ◽  
Manolis Gavaises ◽  
Mark A McHugh
Keyword(s):  
Equation Of State ◽  
Diesel Fuel ◽  
Group Contribution ◽  
Operating Conditions ◽  
Fuel Properties ◽  
Liquid Density ◽  
Theory Approach ◽  
Statistical Associating Fluid Theory ◽  
Diesel Fuels ◽  
Fluid Theory

The Perturbed-Chain, Statistical Associating Fluid Theory equation of state is utilised to model the effect of pressure and temperature on the density, volatility and viscosity of four Diesel surrogates; these calculated properties are then compared to the properties of several Diesel fuels. Perturbed-Chain, Statistical Associating Fluid Theory calculations are performed using different sources for the pure component parameters. One source utilises literature values obtained from fitting vapour pressure and saturated liquid density data or from correlations based on these parameters. The second source utilises a group contribution method based on the chemical structure of each compound. Both modelling methods deliver similar estimations for surrogate density and volatility that are in close agreement with experimental results obtained at ambient pressure. Surrogate viscosity is calculated using the entropy scaling model with a new mixing rule for calculating mixture model parameters. The closest match of the surrogates to Diesel fuel properties provides mean deviations of 1.7% in density, 2.9% in volatility and 8.3% in viscosity. The Perturbed-Chain, Statistical Associating Fluid Theory results are compared to calculations using the Peng–Robinson equation of state; the greater performance of the Perturbed-Chain, Statistical Associating Fluid Theory approach for calculating fluid properties is demonstrated. Finally, an eight-component surrogate, with properties at high pressure and temperature predicted with the group contribution Perturbed-Chain, Statistical Associating Fluid Theory method, yields the best match for Diesel properties with a combined mean absolute deviation of 7.1% from experimental data found in the literature for conditions up to 373°K and 500 MPa. These results demonstrate the predictive capability of a state-of-the-art equation of state for Diesel fuels at extreme engine operating conditions.

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

Extension of the group-contribution lattice-fluid equation of state

2007 ◽  
Vol 260 (1) ◽  
pp. 135-145 ◽  
Author(s):  
Jianwei Li ◽  
Zhigang Lei ◽  
Biaohua Chen ◽  
Chengyue Li
Keyword(s):  
Equation Of State ◽  
Group Contribution ◽  
Fluid Equation ◽  
Lattice Fluid
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